mirror of https://github.com/golang/go.git
6049 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Jakub Ciolek
|
1fc585dc2f |
cmd/compile: inline known-size memclrNoHeapPointers calls
This patch rewrites known-size calls to memclrNoHeapPointers with an OpZero.
This significantly improves performance and lets some clears get DSE'd.
One of the cases where this applies is zeroing a known-size array, example:
var x [256]int8
...
for a := range x {
x[a] = 0
}
Other cases can be found in the runtime itself where memclrNoHeapPointers is sometimes directly invoked with a constant.
It seems that for some sized-clears on some architectures (AMD64, maybe others) the memcrlNoHeapPointers is more performant than OpZero.
See the issue #56997 for more details.
Benches ARM (M1 Pro):
name old time/op new time/op delta
MemclrKnownSize1-10 2.03ns ± 0% 0.31ns ± 0% -84.69% (p=0.000 n=18+19)
MemclrKnownSize2-10 1.97ns ± 0% 0.31ns ± 0% -84.19% (p=0.000 n=12+19)
MemclrKnownSize4-10 2.02ns ± 0% 0.31ns ± 0% -84.56% (p=0.000 n=12+20)
MemclrKnownSize8-10 2.02ns ± 0% 0.31ns ± 0% -84.59% (p=0.000 n=14+19)
MemclrKnownSize16-10 2.15ns ± 0% 0.31ns ± 0% -85.50% (p=0.000 n=18+19)
MemclrKnownSize32-10 2.48ns ± 0% 0.31ns ± 0% -87.48% (p=0.000 n=20+19)
MemclrKnownSize64-10 1.93ns ± 0% 0.62ns ± 0% -67.88% (p=0.000 n=20+19)
MemclrKnownSize112-10 2.48ns ± 0% 1.80ns ± 0% -27.74% (p=0.000 n=19+20)
MemclrKnownSize128-10 10.0ns ±112% 2.0ns ± 0% -79.76% (p=0.000 n=18+17)
MemclrKnownSize192-10 27.4ns ±103% 2.6ns ± 0% -90.38% (p=0.000 n=16+19)
MemclrKnownSize248-10 9.67ns ±43% 3.26ns ± 0% -66.29% (p=0.000 n=19+19)
MemclrKnownSize256-10 85.4ns ±148% 3.3ns ± 0% -96.18% (p=0.000 n=20+20)
MemclrKnownSize512-10 223ns ±54% 6ns ± 0% -97.42% (p=0.000 n=18+20)
MemclrKnownSize1024-10 216ns ±26% 11ns ± 0% -95.00% (p=0.000 n=18+15)
MemclrKnownSize4096-10 265ns ± 2% 88ns ± 0% -66.84% (p=0.000 n=19+17)
MemclrKnownSize512KiB-10 9.91µs ± 1% 10.23µs ± 2% +3.14% (p=0.000 n=19+19)
[Geo mean] 15.6ns 2.5ns -83.62%
name old speed new speed delta
MemclrKnownSize1-10 493MB/s ± 0% 3216MB/s ± 0% +553.04% (p=0.000 n=18+19)
MemclrKnownSize2-10 1.02GB/s ± 0% 6.43GB/s ± 0% +532.33% (p=0.000 n=16+19)
MemclrKnownSize4-10 1.99GB/s ± 0% 12.86GB/s ± 0% +547.67% (p=0.000 n=18+20)
MemclrKnownSize8-10 3.96GB/s ± 0% 25.72GB/s ± 0% +548.81% (p=0.000 n=19+19)
MemclrKnownSize16-10 7.46GB/s ± 0% 51.43GB/s ± 0% +589.72% (p=0.000 n=20+19)
MemclrKnownSize32-10 12.9GB/s ± 0% 102.9GB/s ± 0% +698.60% (p=0.000 n=20+18)
MemclrKnownSize64-10 33.1GB/s ± 0% 103.0GB/s ± 0% +211.34% (p=0.000 n=19+19)
MemclrKnownSize112-10 45.1GB/s ± 0% 62.4GB/s ± 0% +38.38% (p=0.000 n=19+20)
MemclrKnownSize128-10 13.3GB/s ±107% 63.5GB/s ± 0% +378.03% (p=0.000 n=19+18)
MemclrKnownSize192-10 6.97GB/s ±139% 72.72GB/s ± 0% +943.44% (p=0.000 n=19+19)
MemclrKnownSize248-10 25.9GB/s ±46% 76.1GB/s ± 0% +194.16% (p=0.000 n=20+17)
MemclrKnownSize256-10 8.64GB/s ±196% 78.51GB/s ± 0% +808.19% (p=0.000 n=20+20)
MemclrKnownSize512-10 2.33GB/s ±86% 89.13GB/s ± 0% +3719.50% (p=0.000 n=17+20)
MemclrKnownSize1024-10 4.85GB/s ±32% 94.93GB/s ± 0% +1856.74% (p=0.000 n=18+19)
MemclrKnownSize4096-10 15.4GB/s ± 2% 46.6GB/s ± 0% +201.55% (p=0.000 n=19+18)
MemclrKnownSize512KiB-10 52.9GB/s ± 1% 51.3GB/s ± 2% -3.04% (p=0.000 n=19+19)
[Geo mean] 7.54GB/s 42.86GB/s +468.76%
Intel Alder Lake 12600k:
name old time/op new time/op delta
MemclrKnownSize1-16 0.59ns ± 3% 0.38ns ± 6% -36.00% (p=0.000 n=19+18)
MemclrKnownSize2-16 0.57ns ± 1% 0.19ns ± 5% -66.27% (p=0.000 n=19+19)
MemclrKnownSize4-16 0.66ns ± 2% 0.36ns ±21% -45.12% (p=0.000 n=19+20)
MemclrKnownSize8-16 0.74ns ± 1% 0.30ns ±26% -59.81% (p=0.000 n=18+20)
MemclrKnownSize16-16 1.00ns ± 7% 0.21ns ± 8% -79.51% (p=0.000 n=20+19)
MemclrKnownSize32-16 0.95ns ± 1% 0.40ns ± 1% -57.61% (p=0.000 n=20+18)
MemclrKnownSize64-16 1.20ns ± 2% 0.41ns ± 0% -65.82% (p=0.000 n=20+18)
MemclrKnownSize112-16 1.27ns ± 2% 1.03ns ± 0% -19.35% (p=0.000 n=20+18)
MemclrKnownSize128-16 1.34ns ± 2% 1.03ns ± 0% -23.02% (p=0.000 n=20+20)
MemclrKnownSize192-16 1.92ns ± 2% 1.44ns ± 0% -24.89% (p=0.000 n=20+16)
MemclrKnownSize248-16 2.77ns ± 1% 3.29ns ± 0% +18.81% (p=0.000 n=20+16)
MemclrKnownSize256-16 1.92ns ± 1% 1.86ns ± 0% -3.49% (p=0.000 n=19+15)
MemclrKnownSize512-16 2.81ns ± 2% 3.49ns ± 0% +24.15% (p=0.000 n=20+17)
MemclrKnownSize1024-16 4.02ns ± 1% 6.78ns ± 0% +68.44% (p=0.000 n=20+18)
MemclrKnownSize4096-16 17.2ns ± 2% 14.4ns ± 0% -16.73% (p=0.000 n=20+17)
MemclrKnownSize512KiB-16 6.71µs ± 1% 6.52µs ± 0% -2.85% (p=0.000 n=20+18)
[Geo mean] 2.60ns 1.71ns -34.06%
name old speed new speed delta
MemclrKnownSize1-16 1.71GB/s ± 3% 2.67GB/s ± 6% +56.39% (p=0.000 n=19+18)
MemclrKnownSize2-16 3.52GB/s ± 2% 10.43GB/s ± 6% +196.04% (p=0.000 n=20+20)
MemclrKnownSize4-16 6.06GB/s ± 1% 10.83GB/s ±11% +78.63% (p=0.000 n=19+18)
MemclrKnownSize8-16 10.7GB/s ± 1% 27.0GB/s ±21% +151.49% (p=0.000 n=18+20)
MemclrKnownSize16-16 16.0GB/s ± 8% 78.1GB/s ± 7% +387.24% (p=0.000 n=20+19)
MemclrKnownSize32-16 33.6GB/s ± 1% 79.4GB/s ± 1% +135.89% (p=0.000 n=20+18)
MemclrKnownSize64-16 53.3GB/s ± 2% 155.9GB/s ± 0% +192.58% (p=0.000 n=20+18)
MemclrKnownSize112-16 88.0GB/s ± 2% 109.1GB/s ± 0% +23.97% (p=0.000 n=20+18)
MemclrKnownSize128-16 95.3GB/s ± 2% 123.8GB/s ± 0% +29.88% (p=0.000 n=20+20)
MemclrKnownSize192-16 100GB/s ± 2% 133GB/s ± 0% +33.12% (p=0.000 n=20+17)
MemclrKnownSize248-16 89.7GB/s ± 1% 75.5GB/s ± 0% -15.84% (p=0.000 n=20+19)
MemclrKnownSize256-16 133GB/s ± 1% 138GB/s ± 0% +3.61% (p=0.000 n=19+14)
MemclrKnownSize512-16 182GB/s ± 2% 147GB/s ± 0% -19.46% (p=0.000 n=20+17)
MemclrKnownSize1024-16 254GB/s ± 1% 151GB/s ± 0% -40.64% (p=0.000 n=20+18)
MemclrKnownSize4096-16 237GB/s ± 2% 285GB/s ± 0% +20.09% (p=0.000 n=20+17)
MemclrKnownSize512KiB-16 78.2GB/s ± 1% 80.4GB/s ± 0% +2.93% (p=0.000 n=20+18)
[Geo mean] 42.1GB/s 63.8GB/s +51.53%
compilecmp linux/amd64:
runtime
runtime.(*pallocData).allocAll 85 -> 45 (-47.06%)
runtime.(*pageAlloc).allocRange 942 -> 923 (-2.02%)
runtime.(*pageAlloc).free 798 -> 774 (-3.01%)
runtime.(*pageBits).clearAll 66 -> 20 (-69.70%)
runtime.startCheckmarks 255 -> 246 (-3.53%)
runtime.(*pallocData).freeAll 86 -> 46 (-46.51%)
runtime.(*pallocBits).freeAll 66 -> 20 (-69.70%)
runtime.(*consistentHeapStats).unsafeClear 66 -> 19 (-71.21%)
runtime.newproc1 965 -> 933 (-3.32%)
crypto/rc4
crypto/rc4.(*Cipher).Reset 78 -> 69 (-11.54%)
compress/bzip2
compress/bzip2.(*reader).readBlock 2973 -> 2941 (-1.08%)
image/jpeg
image/jpeg.(*decoder).processDHT 1179 -> 1166 (-1.10%)
index/suffixarray
index/suffixarray.bucketMax_8_32 394 -> 241 (-38.83%)
index/suffixarray.freq_8_32 317 -> 185 (-41.64%)
index/suffixarray.freq_8_64 317 -> 178 (-43.85%)
index/suffixarray.bucketMin_8_32 394 -> 243 (-38.32%)
index/suffixarray.bucketMin_8_64 398 -> 234 (-41.21%)
index/suffixarray.bucketMax_8_64 398 -> 234 (-41.21%)
compress/flate
compress/flate.(*huffmanBitWriter).generateCodegen 965 -> 838 (-13.16%)
compress/flate.(*compressor).reset 429 -> 409 (-4.66%)
cmd/vendor/golang.org/x/sys/unix
cmd/vendor/golang.org/x/sys/unix.(*FdSet).Zero 66 -> 60 (-9.09%)
cmd/vendor/golang.org/x/sys/unix.(*Ifreq).SetInet4Addr 211 -> 129 (-38.86%)
cmd/vendor/golang.org/x/sys/unix.(*Ifreq).SetUint32 98 -> 14 (-85.71%)
cmd/vendor/golang.org/x/sys/unix.(*Ifreq).clear 66 -> 11 (-83.33%)
cmd/vendor/golang.org/x/sys/unix.(*Ifreq).SetUint16 101 -> 15 (-85.15%)
cmd/vendor/golang.org/x/sys/unix.(*CPUSet).Zero 66 -> 60 (-9.09%)
internal/coverage/decodemeta
internal/coverage/decodemeta.(*CoverageMetaFileReader).rdUint64 325 -> 293 (-9.85%)
crypto/tls
crypto/tls.(*halfConn).setTrafficSecret 253 -> 247 (-2.37%)
crypto/tls.(*Conn).readRecordOrCCS 10315 -> 10283 (-0.31%)
crypto/tls.(*halfConn).changeCipherSpec 271 -> 261 (-3.69%)
crypto/tls.(*Conn).writeRecordLocked 1765 -> 1748 (-0.96%)
file before after Δ %
runtime.s 512467 512164 -303 -0.059%
crypto/rc4.s 955 946 -9 -0.942%
compress/bzip2.s 9586 9554 -32 -0.334%
image/jpeg.s 32122 32109 -13 -0.040%
index/suffixarray.s 38547 37644 -903 -2.343%
compress/flate.s 46668 46521 -147 -0.315%
cmd/vendor/golang.org/x/sys/unix.s 118620 118301 -319 -0.269%
internal/coverage/decodemeta.s 7224 7192 -32 -0.443%
crypto/tls.s 288762 288697 -65 -0.023%
cmd/compile/internal/ssa.s 3639799 3640727 +928 +0.025%
total 20790248 20789353 -895 -0.004%
src/runtime benchmarks (Linux Alder Lake 12600k):
name old time/op new time/op delta
MakeChan/Byte-16 26.2ns ± 2% 25.6ns ± 3% -2.05% (p=0.003 n=9+10)
MakeChan/Int-16 33.9ns ± 2% 33.3ns ± 4% -1.99% (p=0.015 n=10+10)
MakeChan/Ptr-16 54.2ns ± 2% 53.7ns ± 1% -0.90% (p=0.016 n=10+9)
MakeChan/Struct/0-16 23.8ns ± 3% 23.4ns ± 1% -1.72% (p=0.009 n=10+8)
MakeChan/Struct/32-16 55.9ns ± 2% 53.9ns ± 1% -3.48% (p=0.000 n=10+10)
MakeChan/Struct/40-16 63.5ns ± 1% 61.1ns ± 2% -3.79% (p=0.000 n=10+9)
ChanNonblocking-16 0.22ns ± 0% 0.22ns ± 0% +0.40% (p=0.011 n=9+8)
SelectUncontended-16 4.63ns ± 1% 4.62ns ± 0% -0.35% (p=0.001 n=10+8)
SelectSyncContended-16 1.58µs ± 2% 1.59µs ± 1% ~ (p=0.540 n=10+10)
SelectAsyncContended-16 290ns ± 0% 291ns ± 0% +0.14% (p=0.012 n=8+9)
SelectNonblock-16 0.95ns ± 1% 0.95ns ± 1% ~ (p=0.546 n=9+9)
ChanUncontended-16 239ns ± 3% 242ns ± 6% ~ (p=0.886 n=9+10)
ChanContended-16 17.7µs ± 1% 18.2µs ± 1% +2.87% (p=0.000 n=10+9)
ChanSync-16 109ns ± 2% 109ns ± 1% ~ (p=0.342 n=10+10)
ChanSyncWork-16 6.55µs ± 1% 6.53µs ± 1% ~ (p=0.101 n=10+10)
ChanProdCons0-16 502ns ± 1% 499ns ± 0% -0.55% (p=0.001 n=10+9)
ChanProdCons10-16 373ns ± 2% 377ns ± 1% ~ (p=0.095 n=10+9)
ChanProdCons100-16 224ns ± 2% 223ns ± 3% ~ (p=0.150 n=9+10)
ChanProdConsWork0-16 491ns ± 1% 484ns ± 0% -1.26% (p=0.000 n=10+9)
ChanProdConsWork10-16 451ns ± 2% 448ns ± 2% ~ (p=0.210 n=8+10)
ChanProdConsWork100-16 406ns ± 0% 407ns ± 1% ~ (p=0.138 n=8+8)
SelectProdCons-16 509ns ± 0% 509ns ± 0% ~ (p=0.917 n=9+9)
ReceiveDataFromClosedChan-16 12.1ns ± 0% 12.1ns ± 0% ~ (p=0.780 n=10+10)
ChanCreation-16 22.6ns ± 1% 22.4ns ± 0% -0.72% (p=0.001 n=10+8)
ChanSem-16 165ns ± 1% 166ns ± 1% +0.72% (p=0.002 n=10+10)
ChanPopular-16 500µs ± 2% 498µs ± 1% ~ (p=0.218 n=10+10)
ChanClosed-16 0.29ns ± 0% 0.29ns ± 0% +0.09% (p=0.019 n=9+8)
CallClosure-16 1.28ns ± 0% 1.27ns ± 0% -0.51% (p=0.000 n=9+9)
CallClosure1-16 1.50ns ± 0% 1.50ns ± 0% ~ (p=0.123 n=9+9)
CallClosure2-16 8.86ns ± 1% 8.86ns ± 3% ~ (p=0.590 n=9+10)
CallClosure3-16 8.75ns ± 2% 8.69ns ± 2% ~ (p=0.247 n=10+10)
CallClosure4-16 8.65ns ± 2% 8.56ns ± 2% ~ (p=0.105 n=10+10)
Complex128DivNormal-16 2.47ns ± 0% 2.47ns ± 0% ~ (p=0.790 n=10+9)
Complex128DivNisNaN-16 4.44ns ± 0% 4.43ns ± 0% ~ (p=0.564 n=10+10)
Complex128DivDisNaN-16 4.48ns ± 0% 4.48ns ± 0% ~ (p=0.101 n=10+10)
Complex128DivNisInf-16 2.58ns ± 0% 2.58ns ± 0% ~ (p=0.808 n=10+10)
Complex128DivDisInf-16 6.30ns ± 0% 6.31ns ± 0% ~ (p=0.305 n=10+10)
SetTypePtr-16 0.73ns ± 1% 0.73ns ± 3% ~ (p=0.644 n=10+10)
SetTypePtr8-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.127 n=10+10)
SetTypePtr16-16 4.13ns ± 1% 4.12ns ± 0% ~ (p=0.109 n=10+10)
SetTypePtr32-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.203 n=9+10)
SetTypePtr64-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.696 n=10+10)
SetTypePtr126-16 6.91ns ± 0% 6.91ns ± 0% ~ (p=0.469 n=10+10)
SetTypePtr128-16 6.66ns ± 0% 6.67ns ± 0% ~ (p=0.246 n=9+10)
SetTypePtrSlice-16 54.1ns ± 1% 54.1ns ± 1% ~ (p=0.509 n=9+10)
SetTypeNode1-16 4.13ns ± 1% 4.12ns ± 0% ~ (p=0.342 n=10+10)
SetTypeNode1Slice-16 10.1ns ± 1% 10.0ns ± 1% -1.18% (p=0.000 n=10+10)
SetTypeNode8-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.137 n=8+8)
SetTypeNode8Slice-16 22.6ns ± 0% 22.6ns ± 0% ~ (p=0.423 n=10+10)
SetTypeNode64-16 6.90ns ± 0% 6.91ns ± 0% ~ (p=0.275 n=10+10)
SetTypeNode64Slice-16 173ns ± 0% 173ns ± 0% ~ (p=0.610 n=9+10)
SetTypeNode64Dead-16 5.53ns ± 0% 5.52ns ± 0% ~ (p=0.123 n=10+6)
SetTypeNode64DeadSlice-16 150ns ± 0% 150ns ± 0% ~ (p=0.398 n=10+10)
SetTypeNode124-16 6.90ns ± 0% 6.90ns ± 0% ~ (p=0.779 n=10+10)
SetTypeNode124Slice-16 222ns ± 5% 217ns ± 0% ~ (p=0.302 n=10+10)
SetTypeNode126-16 6.66ns ± 0% 6.66ns ± 0% ~ (p=0.324 n=10+9)
SetTypeNode126Slice-16 218ns ± 0% 218ns ± 0% ~ (p=0.119 n=9+10)
SetTypeNode128-16 9.76ns ± 0% 9.73ns ± 0% -0.31% (p=0.003 n=9+10)
SetTypeNode128Slice-16 279ns ± 0% 278ns ± 0% ~ (p=0.112 n=10+9)
SetTypeNode130-16 9.77ns ± 0% 9.73ns ± 0% -0.33% (p=0.002 n=10+10)
SetTypeNode130Slice-16 284ns ± 0% 284ns ± 0% ~ (p=0.668 n=10+10)
SetTypeNode1024-16 51.2ns ± 0% 51.6ns ± 1% ~ (p=0.080 n=9+9)
SetTypeNode1024Slice-16 1.83µs ± 0% 1.82µs ± 0% ~ (p=0.115 n=10+10)
Allocation-16 4.64µs ± 1% 4.37µs ± 1% -5.69% (p=0.000 n=9+9)
ReadMemStats-16 5.62µs ± 2% 5.55µs ± 5% -1.36% (p=0.050 n=10+10)
WriteBarrier-16 4.95ns ± 3% 4.99ns ± 3% ~ (p=0.255 n=10+10)
BulkWriteBarrier-16 1.69ns ± 2% 1.63ns ± 4% -3.77% (p=0.001 n=10+10)
ScanStackNoLocals-16 12.8ms ± 2% 12.9ms ± 1% +0.72% (p=0.019 n=10+10)
MSpanCountAlloc/bits=64-16 1.65ns ± 0% 1.65ns ± 0% ~ (p=0.124 n=10+10)
MSpanCountAlloc/bits=128-16 2.08ns ± 1% 2.06ns ± 1% -0.87% (p=0.000 n=10+10)
MSpanCountAlloc/bits=256-16 2.71ns ± 1% 2.69ns ± 1% -0.74% (p=0.001 n=10+9)
MSpanCountAlloc/bits=512-16 4.15ns ± 0% 4.23ns ± 2% +2.15% (p=0.000 n=10+10)
MSpanCountAlloc/bits=1024-16 7.89ns ± 1% 7.89ns ± 1% ~ (p=0.867 n=10+10)
Hash5-16 1.93ns ± 1% 2.01ns ± 0% +3.99% (p=0.000 n=10+8)
Hash16-16 2.04ns ± 1% 2.21ns ± 1% +8.61% (p=0.000 n=10+10)
Hash64-16 2.67ns ± 0% 2.67ns ± 0% ~ (p=0.154 n=9+9)
Hash1024-16 16.4ns ± 0% 16.4ns ± 0% +0.17% (p=0.020 n=9+10)
Hash65536-16 886ns ± 0% 885ns ± 0% ~ (p=0.725 n=10+10)
AlignedLoad-16 0.96ns ± 2% 0.95ns ± 3% ~ (p=0.123 n=10+10)
UnalignedLoad-16 0.95ns ± 2% 1.01ns ± 2% +6.31% (p=0.000 n=10+10)
EqEfaceConcrete-16 0.31ns ± 3% 0.33ns ± 5% +8.10% (p=0.000 n=10+10)
EqIfaceConcrete-16 0.31ns ±13% 0.28ns ± 2% -9.23% (p=0.001 n=10+10)
NeEfaceConcrete-16 0.29ns ± 1% 0.31ns ± 7% +5.59% (p=0.010 n=8+8)
NeIfaceConcrete-16 0.28ns ± 2% 0.29ns ± 1% +4.49% (p=0.000 n=9+8)
ConvT2EByteSized/bool-16 0.53ns ± 1% 0.52ns ± 1% -2.18% (p=0.000 n=10+10)
ConvT2EByteSized/uint8-16 0.53ns ± 1% 0.53ns ± 0% +1.22% (p=0.000 n=10+10)
ConvT2ESmall-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.774 n=9+9)
ConvT2EUintptr-16 1.03ns ± 0% 1.04ns ± 0% +0.50% (p=0.000 n=10+8)
ConvT2ELarge-16 14.4ns ± 2% 14.4ns ± 1% ~ (p=0.726 n=10+10)
ConvT2ISmall-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.693 n=9+10)
ConvT2IUintptr-16 1.03ns ± 0% 1.03ns ± 0% +0.44% (p=0.000 n=10+10)
ConvT2ILarge-16 14.2ns ± 1% 14.4ns ± 1% +0.85% (p=0.007 n=9+10)
ConvI2E-16 0.54ns ± 1% 0.54ns ± 0% -0.39% (p=0.037 n=10+8)
ConvI2I-16 2.68ns ± 0% 2.70ns ± 1% +0.73% (p=0.000 n=9+10)
AssertE2T-16 0.28ns ± 1% 0.39ns ± 5% +37.38% (p=0.000 n=10+10)
AssertE2TLarge-16 0.42ns ± 2% 0.48ns ± 1% +14.92% (p=0.000 n=9+10)
AssertE2I-16 2.67ns ± 0% 2.67ns ± 0% ~ (p=0.352 n=9+9)
AssertI2T-16 0.37ns ± 3% 0.34ns ± 1% -6.16% (p=0.000 n=10+10)
AssertI2I-16 2.67ns ± 0% 2.67ns ± 0% ~ (p=0.286 n=10+10)
AssertI2E-16 0.54ns ± 1% 0.54ns ± 0% -0.94% (p=0.000 n=10+10)
AssertE2E-16 0.41ns ± 0% 0.41ns ± 1% ~ (p=0.880 n=9+9)
AssertE2T2-16 0.41ns ± 1% 0.41ns ± 1% ~ (p=0.725 n=10+10)
AssertE2T2Blank-16 0.24ns ± 5% 0.21ns ± 1% -14.79% (p=0.000 n=10+9)
AssertI2E2-16 0.69ns ± 0% 0.69ns ± 1% ~ (p=0.541 n=10+10)
AssertI2E2Blank-16 0.26ns ± 9% 0.21ns ± 1% -18.86% (p=0.000 n=10+9)
AssertE2E2-16 0.53ns ± 1% 0.53ns ± 1% +0.72% (p=0.004 n=10+10)
AssertE2E2Blank-16 0.23ns ± 4% 0.21ns ± 1% -8.42% (p=0.000 n=10+10)
ConvT2Ezero/zero/16-16 1.13ns ± 0% 1.14ns ± 1% ~ (p=0.583 n=9+10)
ConvT2Ezero/zero/32-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.417 n=10+10)
ConvT2Ezero/zero/64-16 1.03ns ± 1% 1.03ns ± 0% ~ (p=0.051 n=10+10)
ConvT2Ezero/zero/str-16 1.03ns ± 0% 1.03ns ± 0% ~ (p=0.132 n=10+10)
ConvT2Ezero/zero/slice-16 1.14ns ± 0% 1.15ns ± 0% +0.49% (p=0.001 n=10+10)
ConvT2Ezero/zero/big-16 123ns ± 1% 123ns ± 1% ~ (p=0.171 n=10+10)
ConvT2Ezero/nonzero/str-16 19.4ns ± 1% 19.3ns ± 3% ~ (p=0.548 n=9+10)
ConvT2Ezero/nonzero/slice-16 22.2ns ± 2% 22.0ns ± 2% ~ (p=0.109 n=10+10)
ConvT2Ezero/nonzero/big-16 123ns ± 1% 123ns ± 1% ~ (p=0.446 n=10+8)
ConvT2Ezero/smallint/16-16 1.13ns ± 0% 1.14ns ± 1% ~ (p=0.362 n=10+10)
ConvT2Ezero/smallint/32-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.907 n=10+9)
ConvT2Ezero/smallint/64-16 1.04ns ± 0% 1.03ns ± 0% -0.38% (p=0.002 n=10+10)
ConvT2Ezero/largeint/16-16 6.65ns ± 1% 6.65ns ± 2% ~ (p=0.618 n=10+9)
ConvT2Ezero/largeint/32-16 6.75ns ± 3% 6.63ns ± 2% -1.77% (p=0.015 n=10+10)
ConvT2Ezero/largeint/64-16 9.19ns ± 1% 9.26ns ± 2% ~ (p=0.123 n=10+10)
Malloc8-16 8.66ns ± 1% 8.89ns ± 2% +2.74% (p=0.000 n=10+10)
Malloc16-16 13.7ns ± 1% 13.8ns ± 1% +0.71% (p=0.022 n=10+8)
MallocTypeInfo8-16 11.7ns ± 3% 11.6ns ± 2% ~ (p=0.469 n=10+10)
MallocTypeInfo16-16 18.3ns ± 1% 18.2ns ± 2% ~ (p=0.251 n=9+10)
MallocLargeStruct-16 195ns ± 1% 198ns ± 1% +1.65% (p=0.000 n=9+10)
GoroutineSelect-16 1.10ms ± 1% 1.12ms ± 1% +1.36% (p=0.000 n=10+8)
GoroutineBlocking-16 986µs ± 1% 998µs ± 1% +1.23% (p=0.002 n=10+10)
GoroutineForRange-16 985µs ± 1% 1001µs ± 1% +1.68% (p=0.000 n=10+10)
GoroutineIdle-16 679µs ± 1% 691µs ± 0% +1.74% (p=0.000 n=10+9)
HashStringSpeed-16 5.33ns ± 5% 5.19ns ± 4% ~ (p=0.113 n=9+9)
HashBytesSpeed-16 8.20ns ± 3% 8.24ns ± 1% ~ (p=0.497 n=10+9)
HashInt32Speed-16 4.01ns ± 2% 3.90ns ± 4% -2.63% (p=0.011 n=9+10)
HashInt64Speed-16 3.94ns ± 4% 3.79ns ± 1% -3.74% (p=0.003 n=10+9)
HashStringArraySpeed-16 12.5ns ± 4% 12.3ns ± 1% ~ (p=0.055 n=10+10)
MegMap-16 3.72ns ± 1% 3.73ns ± 1% ~ (p=0.484 n=9+10)
MegOneMap-16 2.28ns ± 1% 2.27ns ± 1% ~ (p=0.287 n=10+10)
MegEqMap-16 22.0µs ± 3% 22.3µs ± 2% +1.48% (p=0.028 n=10+9)
MegEmptyMap-16 0.93ns ± 1% 0.92ns ± 1% -0.52% (p=0.030 n=10+10)
SmallStrMap-16 3.77ns ± 0% 3.77ns ± 0% ~ (p=0.324 n=10+10)
MapStringKeysEight_16-16 3.91ns ± 0% 3.91ns ± 0% ~ (p=0.088 n=9+9)
MapStringKeysEight_32-16 3.58ns ± 1% 3.50ns ± 0% -2.11% (p=0.000 n=10+10)
MapStringKeysEight_64-16 3.58ns ± 1% 3.50ns ± 0% -2.23% (p=0.000 n=10+10)
MapStringKeysEight_1M-16 3.57ns ± 1% 3.50ns ± 0% -1.92% (p=0.000 n=10+10)
IntMap-16 2.89ns ± 1% 2.89ns ± 0% ~ (p=0.381 n=10+10)
MapFirst/1-16 1.60ns ± 1% 1.59ns ± 2% -0.49% (p=0.020 n=10+9)
MapFirst/2-16 1.61ns ± 0% 1.59ns ± 1% -1.17% (p=0.001 n=10+10)
MapFirst/3-16 1.61ns ± 1% 1.59ns ± 1% -1.45% (p=0.000 n=10+10)
MapFirst/4-16 1.60ns ± 1% 1.59ns ± 1% -1.16% (p=0.000 n=10+10)
MapFirst/5-16 1.60ns ± 1% 1.58ns ± 1% -0.98% (p=0.000 n=10+10)
MapFirst/6-16 1.60ns ± 1% 1.59ns ± 1% -0.87% (p=0.001 n=10+10)
MapFirst/7-16 1.60ns ± 1% 1.59ns ± 1% -0.79% (p=0.002 n=10+10)
MapFirst/8-16 1.60ns ± 1% 1.59ns ± 1% -0.67% (p=0.017 n=9+10)
MapFirst/9-16 2.83ns ± 0% 2.83ns ± 0% ~ (p=0.492 n=10+10)
MapFirst/10-16 2.83ns ± 0% 2.84ns ± 0% +0.24% (p=0.017 n=10+10)
MapFirst/11-16 2.83ns ± 0% 2.83ns ± 0% ~ (p=0.445 n=10+10)
MapFirst/12-16 2.83ns ± 0% 2.83ns ± 0% ~ (p=0.564 n=10+10)
MapFirst/13-16 2.83ns ± 0% 2.84ns ± 0% ~ (p=0.175 n=9+10)
MapFirst/14-16 2.83ns ± 0% 2.83ns ± 0% ~ (p=0.322 n=10+9)
MapFirst/15-16 2.83ns ± 0% 2.84ns ± 1% ~ (p=0.209 n=10+10)
MapFirst/16-16 2.83ns ± 1% 2.84ns ± 0% ~ (p=0.238 n=10+10)
MapMid/1-16 1.64ns ± 0% 1.64ns ± 0% ~ (p=0.453 n=10+9)
MapMid/2-16 1.86ns ± 1% 1.86ns ± 0% ~ (p=0.764 n=10+9)
MapMid/3-16 1.86ns ± 0% 1.86ns ± 1% ~ (p=1.000 n=10+10)
MapMid/4-16 2.06ns ± 0% 2.06ns ± 0% -0.27% (p=0.014 n=10+9)
MapMid/5-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.075 n=9+10)
MapMid/6-16 2.27ns ± 0% 2.27ns ± 1% ~ (p=0.898 n=10+10)
MapMid/7-16 2.27ns ± 1% 2.26ns ± 0% -0.23% (p=0.049 n=10+10)
MapMid/8-16 2.47ns ± 0% 2.47ns ± 1% ~ (p=0.840 n=10+10)
MapMid/9-16 4.21ns ± 7% 4.13ns ±19% ~ (p=0.315 n=10+10)
MapMid/10-16 4.17ns ± 7% 4.31ns ± 5% +3.37% (p=0.021 n=10+9)
MapMid/11-16 4.18ns ± 7% 4.32ns ± 6% +3.50% (p=0.015 n=10+10)
MapMid/12-16 4.34ns ± 7% 4.30ns ± 5% ~ (p=0.858 n=9+10)
MapMid/13-16 4.25ns ± 6% 4.28ns ± 6% ~ (p=0.489 n=9+9)
MapMid/14-16 3.75ns ±23% 3.90ns ±16% ~ (p=0.353 n=10+10)
MapMid/15-16 3.87ns ±25% 3.95ns ±26% ~ (p=0.315 n=10+10)
MapMid/16-16 4.06ns ±19% 3.94ns ±16% ~ (p=0.796 n=10+10)
MapLast/1-16 1.65ns ± 0% 1.65ns ± 0% ~ (p=0.607 n=10+10)
MapLast/2-16 1.86ns ± 0% 1.86ns ± 0% +0.26% (p=0.029 n=10+10)
MapLast/3-16 2.06ns ± 1% 2.06ns ± 0% ~ (p=0.689 n=8+9)
MapLast/4-16 2.27ns ± 1% 2.26ns ± 0% ~ (p=0.148 n=10+9)
MapLast/5-16 2.47ns ± 0% 2.47ns ± 0% ~ (p=0.385 n=9+10)
MapLast/6-16 2.67ns ± 0% 2.68ns ± 0% ~ (p=0.202 n=9+10)
MapLast/7-16 2.88ns ± 0% 2.88ns ± 0% ~ (p=0.751 n=10+10)
MapLast/8-16 3.08ns ± 0% 3.08ns ± 0% ~ (p=0.826 n=10+9)
MapLast/9-16 4.31ns ± 6% 4.54ns ± 5% ~ (p=0.070 n=9+8)
MapLast/10-16 4.25ns ± 5% 4.42ns ± 6% ~ (p=0.321 n=9+8)
MapLast/11-16 4.59ns ±16% 5.42ns ±44% +17.99% (p=0.019 n=10+10)
MapLast/12-16 5.04ns ±19% 6.11ns ±28% +21.35% (p=0.005 n=9+10)
MapLast/13-16 6.00ns ±35% 5.76ns ± 3% ~ (p=0.173 n=10+8)
MapLast/14-16 4.27ns ± 5% 4.53ns ± 6% +6.14% (p=0.007 n=10+10)
MapLast/15-16 4.41ns ± 1% 4.44ns ± 7% ~ (p=0.515 n=8+10)
MapLast/16-16 4.18ns ± 6% 4.99ns ±18% +19.48% (p=0.000 n=10+10)
MapCycle-16 7.48ns ± 2% 7.46ns ± 1% ~ (p=0.699 n=10+10)
RepeatedLookupStrMapKey32-16 6.98ns ± 3% 6.73ns ± 2% -3.63% (p=0.000 n=10+10)
RepeatedLookupStrMapKey1M-16 14.7µs ± 5% 14.7µs ± 4% ~ (p=0.604 n=9+10)
MakeMap/[Byte]Byte-16 58.5ns ± 1% 58.5ns ± 1% ~ (p=0.780 n=10+9)
MakeMap/[Int]Int-16 113ns ± 0% 113ns ± 1% ~ (p=0.100 n=8+10)
NewEmptyMap-16 2.47ns ± 0% 2.47ns ± 0% ~ (p=0.638 n=10+10)
NewSmallMap-16 11.5ns ± 1% 11.6ns ± 0% +1.18% (p=0.000 n=10+10)
MapIter-16 42.2ns ± 0% 42.8ns ± 1% +1.50% (p=0.000 n=10+10)
MapIterEmpty-16 1.85ns ± 0% 1.85ns ± 0% ~ (p=0.651 n=10+10)
SameLengthMap-16 1.85ns ± 1% 1.85ns ± 0% ~ (p=0.247 n=10+10)
BigKeyMap-16 7.18ns ± 1% 7.42ns ± 4% +3.33% (p=0.004 n=10+10)
BigValMap-16 7.03ns ± 2% 7.19ns ± 1% +2.33% (p=0.000 n=10+9)
SmallKeyMap-16 5.32ns ± 1% 5.24ns ± 1% -1.41% (p=0.000 n=10+10)
MapPopulate/1-16 6.30ns ± 0% 6.41ns ± 1% +1.81% (p=0.000 n=8+10)
MapPopulate/10-16 239ns ± 2% 234ns ± 2% -2.05% (p=0.001 n=9+10)
MapPopulate/100-16 4.19µs ± 2% 4.22µs ± 2% ~ (p=0.171 n=10+10)
MapPopulate/1000-16 52.3µs ± 1% 52.5µs ± 1% ~ (p=0.133 n=9+10)
MapPopulate/10000-16 459µs ± 1% 466µs ± 2% +1.45% (p=0.005 n=10+10)
MapPopulate/100000-16 4.22ms ± 2% 4.25ms ± 2% ~ (p=0.393 n=10+10)
ComplexAlgMap-16 12.5ns ± 1% 12.4ns ± 1% -0.95% (p=0.022 n=10+10)
GoMapClear/Reflexive/1-16 9.61ns ± 1% 9.58ns ± 0% -0.27% (p=0.027 n=10+10)
GoMapClear/Reflexive/10-16 10.0ns ± 1% 10.0ns ± 1% ~ (p=0.648 n=9+9)
GoMapClear/Reflexive/100-16 31.4ns ± 0% 31.4ns ± 1% ~ (p=0.305 n=9+10)
GoMapClear/Reflexive/1000-16 147ns ± 0% 149ns ± 2% +1.21% (p=0.000 n=10+10)
GoMapClear/Reflexive/10000-16 3.99µs ± 0% 4.00µs ± 0% +0.21% (p=0.018 n=9+10)
GoMapClear/NonReflexive/1-16 41.4ns ± 2% 41.7ns ± 1% +0.55% (p=0.043 n=9+10)
GoMapClear/NonReflexive/10-16 50.3ns ± 1% 50.9ns ± 1% +1.16% (p=0.000 n=10+10)
GoMapClear/NonReflexive/100-16 125ns ± 0% 126ns ± 0% +0.96% (p=0.000 n=8+10)
GoMapClear/NonReflexive/1000-16 1.08µs ± 0% 1.08µs ± 1% ~ (p=0.097 n=10+10)
GoMapClear/NonReflexive/10000-16 8.18µs ± 2% 8.10µs ± 0% -0.91% (p=0.019 n=10+8)
MapStringConversion/32/simple-16 4.66ns ± 1% 4.69ns ± 3% ~ (p=0.905 n=9+10)
MapStringConversion/32/struct-16 4.65ns ± 3% 4.94ns ± 2% +6.23% (p=0.000 n=10+10)
MapStringConversion/32/array-16 4.69ns ± 3% 4.72ns ± 3% ~ (p=0.631 n=10+10)
MapStringConversion/64/simple-16 4.14ns ± 0% 4.14ns ± 1% ~ (p=0.342 n=10+10)
MapStringConversion/64/struct-16 4.13ns ± 0% 4.13ns ± 0% ~ (p=0.809 n=10+10)
MapStringConversion/64/array-16 4.13ns ± 1% 4.13ns ± 1% ~ (p=0.752 n=10+10)
MapInterfaceString-16 7.90ns ±23% 8.51ns ±33% ~ (p=0.604 n=9+10)
MapInterfacePtr-16 7.68ns ±29% 7.10ns ±36% ~ (p=0.353 n=10+10)
NewEmptyMapHintLessThan8-16 3.70ns ± 0% 3.70ns ± 0% ~ (p=0.209 n=10+10)
NewEmptyMapHintGreaterThan8-16 270ns ± 1% 272ns ± 1% +0.71% (p=0.005 n=10+9)
MapPop100-16 6.45µs ± 0% 6.50µs ± 1% +0.77% (p=0.000 n=10+10)
MapPop1000-16 114µs ± 1% 114µs ± 1% ~ (p=0.190 n=10+10)
MapPop10000-16 2.28ms ± 2% 2.28ms ± 2% ~ (p=0.912 n=10+10)
MapAssign/Int32/256-16 4.75ns ± 2% 4.82ns ± 4% ~ (p=0.101 n=10+10)
MapAssign/Int32/65536-16 16.4ns ± 1% 16.7ns ± 0% +1.44% (p=0.000 n=10+9)
MapAssign/Int64/256-16 4.79ns ± 5% 4.79ns ± 1% ~ (p=0.616 n=10+8)
MapAssign/Int64/65536-16 17.1ns ± 1% 16.8ns ± 0% -1.28% (p=0.000 n=10+8)
MapAssign/Str/256-16 6.07ns ± 6% 6.24ns ± 2% +2.84% (p=0.035 n=10+9)
MapAssign/Str/65536-16 21.4ns ± 0% 21.4ns ± 3% ~ (p=0.300 n=7+10)
MapOperatorAssign/Int32/256-16 4.82ns ± 3% 4.81ns ± 3% ~ (p=0.684 n=10+10)
MapOperatorAssign/Int32/65536-16 16.8ns ± 1% 16.5ns ± 1% -1.68% (p=0.000 n=9+10)
MapOperatorAssign/Int64/256-16 4.74ns ± 1% 4.77ns ± 3% ~ (p=0.563 n=10+9)
MapOperatorAssign/Int64/65536-16 16.9ns ± 1% 17.2ns ± 1% +1.88% (p=0.000 n=10+10)
MapOperatorAssign/Str/256-16 1.09µs ± 1% 1.10µs ± 2% ~ (p=0.210 n=10+10)
MapOperatorAssign/Str/65536-16 184ns ± 9% 184ns ± 8% ~ (p=0.922 n=10+9)
MapAppendAssign/Int32/256-16 13.8ns ±10% 14.4ns ±11% ~ (p=0.190 n=10+10)
MapAppendAssign/Int32/65536-16 28.9ns ± 5% 30.7ns ± 6% +6.13% (p=0.001 n=9+10)
MapAppendAssign/Int64/256-16 14.5ns ±12% 13.8ns ± 8% -5.02% (p=0.037 n=10+10)
MapAppendAssign/Int64/65536-16 30.9ns ± 1% 30.4ns ± 2% -1.56% (p=0.001 n=10+10)
MapAppendAssign/Str/256-16 30.2ns ± 6% 30.0ns ±10% ~ (p=0.645 n=10+10)
MapAppendAssign/Str/65536-16 44.5ns ± 4% 46.8ns ± 3% +5.17% (p=0.001 n=8+9)
MapDelete/Int32/100-16 18.7ns ± 0% 18.7ns ± 0% -0.27% (p=0.017 n=10+10)
MapDelete/Int32/1000-16 17.6ns ± 1% 17.5ns ± 1% -0.85% (p=0.000 n=9+10)
MapDelete/Int32/10000-16 18.7ns ± 0% 18.3ns ± 1% -1.92% (p=0.000 n=10+10)
MapDelete/Int64/100-16 19.1ns ± 0% 19.2ns ± 0% +0.68% (p=0.000 n=10+9)
MapDelete/Int64/1000-16 17.7ns ± 2% 18.3ns ± 1% +3.00% (p=0.000 n=10+10)
MapDelete/Int64/10000-16 18.8ns ± 1% 19.2ns ± 0% +2.01% (p=0.000 n=10+9)
MapDelete/Str/100-16 26.5ns ± 0% 26.4ns ± 1% -0.73% (p=0.000 n=10+10)
MapDelete/Str/1000-16 23.5ns ± 2% 23.4ns ± 1% ~ (p=0.425 n=10+10)
MapDelete/Str/10000-16 25.1ns ± 0% 25.1ns ± 1% +0.28% (p=0.037 n=10+10)
MapDelete/Pointer/100-16 20.6ns ± 1% 20.6ns ± 0% ~ (p=0.117 n=10+10)
MapDelete/Pointer/1000-16 19.2ns ± 1% 19.4ns ± 1% +0.97% (p=0.004 n=10+10)
MapDelete/Pointer/10000-16 20.0ns ± 0% 20.1ns ± 1% +0.52% (p=0.022 n=10+10)
Memmove/0-16 0.21ns ± 2% 0.21ns ± 1% ~ (p=0.671 n=10+10)
Memmove/1-16 0.93ns ± 0% 0.93ns ± 0% +0.21% (p=0.034 n=10+10)
Memmove/2-16 0.93ns ± 0% 0.93ns ± 0% ~ (p=0.101 n=10+10)
Memmove/3-16 0.93ns ± 1% 0.93ns ± 1% +0.49% (p=0.004 n=10+10)
Memmove/4-16 1.03ns ± 0% 1.03ns ± 0% ~ (p=0.260 n=10+10)
Memmove/5-16 1.13ns ± 0% 1.13ns ± 0% +0.20% (p=0.034 n=10+10)
Memmove/6-16 1.13ns ± 0% 1.13ns ± 1% ~ (p=0.126 n=10+10)
Memmove/7-16 1.13ns ± 0% 1.13ns ± 1% +0.22% (p=0.028 n=10+10)
Memmove/8-16 1.13ns ± 0% 1.13ns ± 0% ~ (p=0.545 n=9+10)
Memmove/9-16 1.25ns ± 0% 1.35ns ± 0% +7.98% (p=0.000 n=10+10)
Memmove/10-16 1.25ns ± 0% 1.35ns ± 0% +7.96% (p=0.000 n=9+9)
Memmove/11-16 1.25ns ± 0% 1.35ns ± 0% +8.53% (p=0.000 n=10+9)
Memmove/12-16 1.25ns ± 0% 1.35ns ± 1% +8.24% (p=0.000 n=10+10)
Memmove/13-16 1.25ns ± 0% 1.34ns ± 0% +7.75% (p=0.000 n=10+10)
Memmove/14-16 1.25ns ± 0% 1.35ns ± 1% +8.28% (p=0.000 n=10+9)
Memmove/15-16 1.25ns ± 0% 1.35ns ± 0% +8.07% (p=0.000 n=10+9)
Memmove/16-16 1.25ns ± 0% 1.35ns ± 1% +8.35% (p=0.000 n=9+10)
Memmove/32-16 1.34ns ± 0% 1.36ns ± 1% +1.22% (p=0.000 n=10+10)
Memmove/64-16 1.45ns ± 0% 1.64ns ± 0% +13.07% (p=0.000 n=10+9)
Memmove/128-16 1.86ns ± 0% 2.02ns ± 0% +8.64% (p=0.000 n=10+10)
Memmove/256-16 2.47ns ± 0% 2.49ns ± 1% +1.14% (p=0.000 n=10+10)
Memmove/512-16 3.96ns ± 1% 3.96ns ± 0% ~ (p=0.182 n=10+10)
Memmove/1024-16 5.90ns ± 1% 5.87ns ± 1% ~ (p=0.258 n=9+9)
Memmove/2048-16 9.62ns ± 1% 9.62ns ± 2% ~ (p=0.963 n=8+9)
Memmove/4096-16 16.4ns ± 0% 17.1ns ± 4% +4.19% (p=0.003 n=8+9)
MemmoveOverlap/32-16 1.62ns ± 1% 1.68ns ± 1% +3.53% (p=0.000 n=10+10)
MemmoveOverlap/64-16 1.64ns ± 0% 1.65ns ± 0% +0.29% (p=0.002 n=9+9)
MemmoveOverlap/128-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.070 n=10+10)
MemmoveOverlap/256-16 2.67ns ± 0% 2.67ns ± 0% +0.26% (p=0.012 n=10+10)
MemmoveOverlap/512-16 6.20ns ±18% 5.74ns ± 0% ~ (p=0.645 n=10+8)
MemmoveOverlap/1024-16 7.28ns ± 0% 7.30ns ± 0% +0.28% (p=0.006 n=8+10)
MemmoveOverlap/2048-16 11.9ns ± 0% 12.0ns ± 1% +0.37% (p=0.014 n=9+9)
MemmoveOverlap/4096-16 23.3ns ± 1% 23.1ns ± 1% -0.84% (p=0.000 n=8+10)
MemmoveUnalignedDst/0-16 1.03ns ± 0% 1.03ns ± 0% +0.19% (p=0.007 n=10+10)
MemmoveUnalignedDst/1-16 1.24ns ± 0% 1.25ns ± 1% +0.52% (p=0.022 n=10+10)
MemmoveUnalignedDst/2-16 1.23ns ± 0% 1.23ns ± 0% ~ (p=0.051 n=10+10)
MemmoveUnalignedDst/3-16 1.23ns ± 0% 1.23ns ± 0% +0.14% (p=0.006 n=9+9)
MemmoveUnalignedDst/4-16 1.23ns ± 0% 1.24ns ± 1% +0.37% (p=0.004 n=10+10)
MemmoveUnalignedDst/5-16 1.35ns ± 0% 1.35ns ± 0% ~ (p=0.075 n=10+10)
MemmoveUnalignedDst/6-16 1.34ns ± 0% 1.34ns ± 0% ~ (p=0.779 n=10+10)
MemmoveUnalignedDst/7-16 1.34ns ± 0% 1.34ns ± 0% ~ (p=1.000 n=10+10)
MemmoveUnalignedDst/8-16 1.34ns ± 0% 1.35ns ± 1% +0.39% (p=0.024 n=10+10)
MemmoveUnalignedDst/9-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.849 n=10+10)
MemmoveUnalignedDst/10-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.255 n=10+10)
MemmoveUnalignedDst/11-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.304 n=10+10)
MemmoveUnalignedDst/12-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.672 n=10+10)
MemmoveUnalignedDst/13-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.435 n=10+10)
MemmoveUnalignedDst/14-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.340 n=10+10)
MemmoveUnalignedDst/15-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.911 n=10+9)
MemmoveUnalignedDst/16-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.074 n=10+10)
MemmoveUnalignedDst/32-16 1.62ns ± 0% 1.63ns ± 0% ~ (p=0.059 n=10+10)
MemmoveUnalignedDst/64-16 1.65ns ± 0% 1.65ns ± 0% ~ (p=0.234 n=10+10)
MemmoveUnalignedDst/128-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.709 n=10+9)
MemmoveUnalignedDst/256-16 3.69ns ± 0% 3.70ns ± 0% ~ (p=0.144 n=10+10)
MemmoveUnalignedDst/512-16 4.15ns ± 1% 4.14ns ± 0% ~ (p=0.778 n=10+8)
MemmoveUnalignedDst/1024-16 7.52ns ± 0% 7.53ns ± 1% ~ (p=0.650 n=9+9)
MemmoveUnalignedDst/2048-16 12.9ns ± 0% 12.9ns ± 1% ~ (p=0.548 n=8+8)
MemmoveUnalignedDst/4096-16 25.4ns ± 0% 25.4ns ± 0% ~ (p=0.947 n=9+9)
MemmoveUnalignedDstOverlap/32-16 4.08ns ± 0% 4.09ns ± 0% ~ (p=0.360 n=10+10)
MemmoveUnalignedDstOverlap/64-16 4.56ns ± 0% 4.56ns ± 0% ~ (p=0.705 n=10+9)
MemmoveUnalignedDstOverlap/128-16 4.67ns ± 0% 4.67ns ± 0% ~ (p=0.397 n=10+10)
MemmoveUnalignedDstOverlap/256-16 5.08ns ± 0% 5.08ns ± 0% ~ (p=0.159 n=10+9)
MemmoveUnalignedDstOverlap/512-16 8.45ns ± 5% 8.19ns ± 0% -3.10% (p=0.021 n=10+9)
MemmoveUnalignedDstOverlap/1024-16 9.55ns ± 0% 9.56ns ± 0% ~ (p=0.221 n=8+8)
MemmoveUnalignedDstOverlap/2048-16 14.0ns ± 0% 14.0ns ± 1% ~ (p=0.200 n=10+9)
MemmoveUnalignedDstOverlap/4096-16 26.5ns ± 0% 26.5ns ± 0% ~ (p=0.458 n=10+9)
MemmoveUnalignedSrc/0-16 1.02ns ± 1% 0.99ns ± 1% -2.67% (p=0.000 n=10+9)
MemmoveUnalignedSrc/1-16 1.13ns ± 0% 1.13ns ± 1% -0.25% (p=0.027 n=10+9)
MemmoveUnalignedSrc/2-16 1.13ns ± 1% 1.13ns ± 0% -0.28% (p=0.012 n=10+9)
MemmoveUnalignedSrc/3-16 1.24ns ± 1% 1.23ns ± 0% -0.25% (p=0.022 n=9+10)
MemmoveUnalignedSrc/4-16 1.24ns ± 0% 1.23ns ± 1% ~ (p=0.118 n=9+10)
MemmoveUnalignedSrc/5-16 1.34ns ± 0% 1.34ns ± 1% ~ (p=0.564 n=8+10)
MemmoveUnalignedSrc/6-16 1.34ns ± 0% 1.34ns ± 0% -0.39% (p=0.000 n=10+10)
MemmoveUnalignedSrc/7-16 1.34ns ± 0% 1.34ns ± 0% ~ (p=0.235 n=10+10)
MemmoveUnalignedSrc/8-16 1.34ns ± 0% 1.34ns ± 0% -0.37% (p=0.002 n=10+9)
MemmoveUnalignedSrc/9-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.579 n=10+9)
MemmoveUnalignedSrc/10-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.534 n=10+9)
MemmoveUnalignedSrc/11-16 1.44ns ± 0% 1.44ns ± 1% ~ (p=0.415 n=10+10)
MemmoveUnalignedSrc/12-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.218 n=10+10)
MemmoveUnalignedSrc/13-16 1.44ns ± 0% 1.44ns ± 1% ~ (p=0.693 n=10+10)
MemmoveUnalignedSrc/14-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.901 n=10+10)
MemmoveUnalignedSrc/15-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.379 n=10+10)
MemmoveUnalignedSrc/16-16 1.44ns ± 1% 1.44ns ± 0% ~ (p=0.538 n=10+10)
MemmoveUnalignedSrc/32-16 1.60ns ± 1% 1.60ns ± 0% ~ (p=0.491 n=10+10)
MemmoveUnalignedSrc/64-16 1.65ns ± 0% 1.65ns ± 0% ~ (p=0.564 n=10+10)
MemmoveUnalignedSrc/128-16 2.09ns ± 0% 2.09ns ± 0% ~ (p=0.497 n=10+9)
MemmoveUnalignedSrc/256-16 2.70ns ± 0% 2.78ns ± 1% +2.81% (p=0.000 n=10+10)
MemmoveUnalignedSrc/512-16 4.31ns ± 0% 4.30ns ± 0% -0.26% (p=0.031 n=8+9)
MemmoveUnalignedSrc/1024-16 7.28ns ± 0% 7.21ns ± 1% -1.05% (p=0.000 n=8+10)
MemmoveUnalignedSrc/2048-16 13.0ns ± 0% 13.0ns ± 0% ~ (p=0.180 n=9+8)
MemmoveUnalignedSrc/4096-16 25.4ns ± 0% 25.3ns ± 1% ~ (p=0.054 n=10+10)
MemmoveUnalignedSrcOverlap/32-16 4.04ns ± 0% 4.06ns ± 0% +0.62% (p=0.000 n=9+10)
MemmoveUnalignedSrcOverlap/64-16 4.12ns ± 0% 4.12ns ± 0% ~ (p=0.421 n=10+10)
MemmoveUnalignedSrcOverlap/128-16 4.53ns ± 0% 4.52ns ± 0% ~ (p=0.251 n=10+10)
MemmoveUnalignedSrcOverlap/256-16 6.17ns ± 0% 6.15ns ± 0% -0.35% (p=0.000 n=10+9)
MemmoveUnalignedSrcOverlap/512-16 7.43ns ± 0% 7.44ns ± 0% ~ (p=0.524 n=9+8)
MemmoveUnalignedSrcOverlap/1024-16 8.94ns ± 0% 8.94ns ± 0% ~ (p=0.419 n=8+8)
MemmoveUnalignedSrcOverlap/2048-16 13.2ns ± 0% 14.5ns ±21% ~ (p=0.107 n=8+10)
MemmoveUnalignedSrcOverlap/4096-16 25.6ns ± 0% 25.6ns ± 1% ~ (p=0.650 n=9+9)
Memclr/5-16 0.86ns ± 1% 0.86ns ± 2% ~ (p=0.531 n=9+9)
Memclr/16-16 1.04ns ± 0% 1.04ns ± 0% +0.32% (p=0.013 n=9+10)
Memclr/64-16 1.23ns ± 0% 1.26ns ± 0% +2.28% (p=0.000 n=10+10)
Memclr/256-16 2.27ns ± 0% 2.27ns ± 0% ~ (p=0.127 n=10+10)
Memclr/4096-16 17.1ns ± 1% 17.3ns ± 0% +0.88% (p=0.000 n=10+10)
Memclr/65536-16 821ns ± 0% 822ns ± 0% ~ (p=0.516 n=10+10)
Memclr/1M-16 14.1µs ± 1% 14.0µs ± 1% ~ (p=0.516 n=10+10)
Memclr/4M-16 86.1µs ± 1% 85.9µs ± 0% ~ (p=0.123 n=10+10)
Memclr/8M-16 174µs ± 2% 173µs ± 0% ~ (p=0.408 n=10+8)
Memclr/16M-16 385µs ± 4% 387µs ± 0% ~ (p=0.173 n=10+8)
Memclr/64M-16 2.18ms ± 0% 2.19ms ± 0% ~ (p=0.113 n=10+9)
GoMemclr/5-16 0.82ns ± 0% 0.82ns ± 0% ~ (p=0.346 n=9+10)
GoMemclr/16-16 1.02ns ± 0% 1.02ns ± 0% +0.22% (p=0.003 n=10+8)
GoMemclr/64-16 1.14ns ± 0% 1.14ns ± 0% ~ (p=0.948 n=10+9)
GoMemclr/256-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.868 n=10+10)
MemclrRange/1K_2K-16 457ns ± 0% 428ns ± 1% -6.38% (p=0.000 n=10+10)
MemclrRange/2K_8K-16 1.46µs ± 0% 1.46µs ± 0% ~ (p=0.700 n=10+10)
MemclrRange/4K_16K-16 1.16µs ± 0% 1.16µs ± 0% ~ (p=0.567 n=9+10)
MemclrRange/160K_228K-16 20.7µs ± 0% 20.7µs ± 0% ~ (p=0.160 n=10+10)
ClearFat7-16 0.38ns ± 5% 0.21ns ± 1% -45.79% (p=0.000 n=9+10)
ClearFat8-16 0.21ns ± 3% 0.12ns ± 2% -44.16% (p=0.000 n=8+9)
ClearFat11-16 0.35ns ± 3% 0.21ns ± 1% -40.46% (p=0.000 n=9+9)
ClearFat12-16 0.23ns ± 9% 0.21ns ± 1% -10.23% (p=0.000 n=10+9)
ClearFat13-16 0.22ns ± 6% 0.21ns ± 2% -6.53% (p=0.000 n=10+10)
ClearFat14-16 0.22ns ± 4% 0.21ns ± 1% -5.97% (p=0.000 n=10+10)
ClearFat15-16 0.22ns ± 4% 0.21ns ± 1% -6.96% (p=0.000 n=10+9)
ClearFat16-16 0.19ns ± 9% 0.12ns ± 6% -34.89% (p=0.000 n=9+10)
ClearFat24-16 0.23ns ± 6% 0.21ns ± 1% -10.26% (p=0.000 n=10+9)
ClearFat32-16 0.22ns ± 5% 0.21ns ± 2% -5.31% (p=0.000 n=10+10)
ClearFat40-16 0.34ns ± 4% 0.62ns ± 1% +83.00% (p=0.000 n=10+10)
ClearFat48-16 0.33ns ± 2% 0.41ns ± 0% +26.71% (p=0.000 n=10+10)
ClearFat56-16 0.41ns ± 1% 0.41ns ± 0% ~ (p=0.838 n=10+10)
ClearFat64-16 0.41ns ± 0% 0.41ns ± 0% ~ (p=0.178 n=10+8)
ClearFat72-16 0.82ns ± 0% 0.82ns ± 0% ~ (p=0.669 n=10+10)
ClearFat128-16 1.04ns ± 0% 1.04ns ± 0% ~ (p=0.679 n=10+10)
ClearFat256-16 1.86ns ± 0% 1.86ns ± 0% ~ (p=0.066 n=9+10)
ClearFat512-16 3.50ns ± 0% 3.50ns ± 0% ~ (p=0.626 n=10+10)
ClearFat1024-16 6.79ns ± 0% 6.79ns ± 0% ~ (p=0.986 n=10+10)
ClearFat1032-16 13.6ns ± 0% 13.6ns ± 0% +0.13% (p=0.044 n=10+10)
ClearFat1040-16 10.3ns ± 0% 10.3ns ± 0% ~ (p=0.175 n=10+9)
CopyFat7-16 0.37ns ±13% 0.25ns ± 1% -31.74% (p=0.000 n=10+9)
CopyFat8-16 0.17ns ± 1% 0.17ns ± 2% +1.35% (p=0.004 n=9+9)
CopyFat11-16 0.26ns ± 1% 0.30ns ± 3% +12.58% (p=0.000 n=9+10)
CopyFat12-16 0.28ns ± 2% 0.26ns ± 1% -5.66% (p=0.000 n=9+9)
CopyFat13-16 0.26ns ± 0% 0.28ns ± 4% +7.35% (p=0.000 n=8+10)
CopyFat14-16 0.29ns ± 6% 0.26ns ± 2% -10.46% (p=0.000 n=10+9)
CopyFat15-16 0.26ns ± 1% 0.30ns ± 6% +14.12% (p=0.000 n=8+10)
CopyFat16-16 0.21ns ± 1% 0.21ns ± 0% ~ (p=0.426 n=8+8)
CopyFat24-16 0.29ns ± 3% 0.25ns ± 1% -12.27% (p=0.000 n=9+10)
CopyFat32-16 0.26ns ± 4% 0.29ns ± 4% +11.71% (p=0.000 n=10+10)
CopyFat64-16 0.46ns ± 8% 0.42ns ± 1% -8.37% (p=0.002 n=10+10)
CopyFat72-16 0.82ns ± 0% 0.82ns ± 0% ~ (p=0.563 n=10+10)
CopyFat128-16 1.53ns ± 0% 1.54ns ± 0% +0.62% (p=0.000 n=10+10)
CopyFat256-16 2.68ns ± 0% 2.65ns ± 1% -1.23% (p=0.000 n=10+10)
CopyFat512-16 4.93ns ± 1% 5.19ns ± 3% +5.16% (p=0.000 n=9+9)
CopyFat520-16 6.99ns ± 0% 6.99ns ± 0% ~ (p=0.539 n=10+10)
CopyFat1024-16 11.5ns ± 1% 9.8ns ± 1% -14.98% (p=0.000 n=9+10)
CopyFat1032-16 13.6ns ± 0% 13.6ns ± 0% ~ (p=0.728 n=10+10)
CopyFat1040-16 11.0ns ± 0% 11.1ns ± 0% +0.53% (p=0.000 n=10+10)
Issue18740/2byte-16 10.1µs ± 0% 10.1µs ± 0% ~ (p=0.342 n=10+10)
Issue18740/4byte-16 2.34µs ± 0% 2.35µs ± 0% +0.30% (p=0.002 n=10+8)
Issue18740/8byte-16 1.28µs ± 0% 1.28µs ± 0% +0.32% (p=0.000 n=9+10)
Finalizer-16 345µs ± 1% 336µs ± 0% -2.55% (p=0.000 n=10+9)
FinalizerRun-16 450ns ± 3% 420ns ± 1% -6.65% (p=0.000 n=10+10)
PallocBitsSummarize/Unpacked00-16 2.88ns ± 0% 2.88ns ± 0% ~ (p=0.358 n=10+10)
PallocBitsSummarize/UnpackedFFFFFFFFFFFFFFFF-16 15.2ns ± 0% 15.2ns ± 0% ~ (p=0.925 n=10+10)
PallocBitsSummarize/UnpackedAA-16 16.4ns ± 0% 16.3ns ± 0% ~ (p=0.113 n=9+9)
PallocBitsSummarize/UnpackedAAAAAAAAAAAAAAAA-16 16.5ns ± 0% 16.6ns ± 0% ~ (p=0.238 n=10+10)
PallocBitsSummarize/Unpacked80000000AAAAAAAA-16 37.8ns ± 1% 36.4ns ± 0% -3.70% (p=0.000 n=10+9)
PallocBitsSummarize/UnpackedAAAAAAAA00000001-16 41.8ns ± 1% 39.9ns ± 0% -4.68% (p=0.000 n=9+10)
PallocBitsSummarize/UnpackedBBBBBBBBBBBBBBBB-16 18.3ns ± 0% 18.3ns ± 0% ~ (p=0.781 n=10+10)
PallocBitsSummarize/Unpacked80000000BBBBBBBB-16 38.8ns ± 1% 38.1ns ± 0% -1.78% (p=0.000 n=9+10)
PallocBitsSummarize/UnpackedBBBBBBBB00000001-16 37.5ns ± 0% 36.1ns ± 1% -3.88% (p=0.000 n=8+10)
PallocBitsSummarize/UnpackedCCCCCCCCCCCCCCCC-16 21.8ns ± 0% 21.9ns ± 0% +0.20% (p=0.018 n=10+9)
PallocBitsSummarize/Unpacked4444444444444444-16 21.8ns ± 0% 21.9ns ± 0% +0.20% (p=0.029 n=10+9)
PallocBitsSummarize/Unpacked4040404040404040-16 26.5ns ± 0% 26.5ns ± 0% -0.24% (p=0.001 n=9+10)
PallocBitsSummarize/Unpacked4000400040004000-16 33.4ns ± 1% 31.3ns ± 0% -6.20% (p=0.000 n=9+10)
PallocBitsSummarize/Unpacked1000404044CCAAFF-16 36.4ns ± 1% 35.9ns ± 0% -1.50% (p=0.000 n=10+10)
FindBitRange64/Pattern00Size2-16 0.34ns ± 1% 0.35ns ± 1% +3.80% (p=0.000 n=10+9)
FindBitRange64/Pattern00Size8-16 0.70ns ± 1% 0.70ns ± 0% -0.68% (p=0.000 n=10+10)
FindBitRange64/Pattern00Size32-16 0.70ns ± 1% 0.69ns ± 0% -0.86% (p=0.001 n=10+8)
FindBitRange64/PatternFFFFFFFFFFFFFFFFSize2-16 0.34ns ± 1% 0.35ns ± 1% +4.45% (p=0.000 n=9+8)
FindBitRange64/PatternFFFFFFFFFFFFFFFFSize8-16 1.54ns ± 0% 1.54ns ± 1% ~ (p=0.914 n=9+9)
FindBitRange64/PatternFFFFFFFFFFFFFFFFSize32-16 2.78ns ± 0% 2.78ns ± 0% ~ (p=0.295 n=9+10)
FindBitRange64/PatternAASize2-16 0.34ns ± 2% 0.35ns ± 2% +4.61% (p=0.000 n=10+10)
FindBitRange64/PatternAASize8-16 0.70ns ± 1% 0.70ns ± 1% -0.82% (p=0.005 n=10+10)
FindBitRange64/PatternAASize32-16 0.70ns ± 1% 0.70ns ± 0% -0.73% (p=0.003 n=10+9)
FindBitRange64/PatternAAAAAAAAAAAAAAAASize2-16 0.34ns ± 2% 0.35ns ± 2% +3.94% (p=0.000 n=10+10)
FindBitRange64/PatternAAAAAAAAAAAAAAAASize8-16 0.70ns ± 1% 0.70ns ± 1% -0.67% (p=0.025 n=10+10)
FindBitRange64/PatternAAAAAAAAAAAAAAAASize32-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.118 n=9+10)
FindBitRange64/Pattern80000000AAAAAAAASize2-16 0.34ns ± 1% 0.35ns ± 2% +3.72% (p=0.000 n=10+9)
FindBitRange64/Pattern80000000AAAAAAAASize8-16 0.70ns ± 1% 0.70ns ± 0% ~ (p=0.102 n=10+10)
FindBitRange64/Pattern80000000AAAAAAAASize32-16 0.70ns ± 1% 0.70ns ± 1% -0.55% (p=0.011 n=10+10)
FindBitRange64/PatternAAAAAAAA00000001Size2-16 0.34ns ± 2% 0.35ns ± 1% +3.83% (p=0.000 n=10+9)
FindBitRange64/PatternAAAAAAAA00000001Size8-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.065 n=10+10)
FindBitRange64/PatternAAAAAAAA00000001Size32-16 0.70ns ± 1% 0.70ns ± 1% -0.95% (p=0.002 n=10+10)
FindBitRange64/PatternBBBBBBBBBBBBBBBBSize2-16 0.34ns ± 0% 0.35ns ± 1% +4.12% (p=0.000 n=8+10)
FindBitRange64/PatternBBBBBBBBBBBBBBBBSize8-16 1.24ns ± 0% 1.23ns ± 0% -0.30% (p=0.002 n=10+9)
FindBitRange64/PatternBBBBBBBBBBBBBBBBSize32-16 1.24ns ± 0% 1.24ns ± 0% -0.17% (p=0.023 n=9+10)
FindBitRange64/Pattern80000000BBBBBBBBSize2-16 0.34ns ± 1% 0.35ns ± 2% +4.82% (p=0.000 n=9+10)
FindBitRange64/Pattern80000000BBBBBBBBSize8-16 1.24ns ± 1% 1.24ns ± 0% ~ (p=0.063 n=10+10)
FindBitRange64/Pattern80000000BBBBBBBBSize32-16 1.24ns ± 0% 1.24ns ± 0% ~ (p=0.164 n=9+10)
FindBitRange64/PatternBBBBBBBB00000001Size2-16 0.34ns ± 1% 0.35ns ± 1% +4.38% (p=0.000 n=8+10)
FindBitRange64/PatternBBBBBBBB00000001Size8-16 1.24ns ± 1% 1.24ns ± 0% ~ (p=0.052 n=10+10)
FindBitRange64/PatternBBBBBBBB00000001Size32-16 1.24ns ± 0% 1.23ns ± 0% -0.40% (p=0.000 n=10+10)
FindBitRange64/PatternCCCCCCCCCCCCCCCCSize2-16 0.34ns ± 0% 0.35ns ± 2% +3.96% (p=0.000 n=9+10)
FindBitRange64/PatternCCCCCCCCCCCCCCCCSize8-16 1.24ns ± 0% 1.23ns ± 0% -0.30% (p=0.000 n=10+9)
FindBitRange64/PatternCCCCCCCCCCCCCCCCSize32-16 1.24ns ± 0% 1.24ns ± 1% ~ (p=0.284 n=10+10)
FindBitRange64/Pattern4444444444444444Size2-16 0.34ns ± 1% 0.35ns ± 1% +3.91% (p=0.000 n=9+9)
FindBitRange64/Pattern4444444444444444Size8-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.617 n=10+10)
FindBitRange64/Pattern4444444444444444Size32-16 0.70ns ± 1% 0.70ns ± 1% -0.60% (p=0.006 n=10+10)
FindBitRange64/Pattern4040404040404040Size2-16 0.34ns ± 2% 0.35ns ± 2% +3.67% (p=0.000 n=10+10)
FindBitRange64/Pattern4040404040404040Size8-16 0.70ns ± 2% 0.70ns ± 1% -0.87% (p=0.014 n=10+10)
FindBitRange64/Pattern4040404040404040Size32-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.256 n=10+10)
FindBitRange64/Pattern4000400040004000Size2-16 0.34ns ± 2% 0.35ns ± 3% +4.71% (p=0.000 n=10+10)
FindBitRange64/Pattern4000400040004000Size8-16 0.70ns ± 1% 0.70ns ± 1% ~ (p=0.393 n=10+10)
FindBitRange64/Pattern4000400040004000Size32-16 0.70ns ± 1% 0.70ns ± 1% -0.86% (p=0.014 n=10+10)
NetpollBreak-16 1.49µs ± 1% 1.50µs ± 3% ~ (p=0.181 n=8+10)
Syscall-16 3.68ns ± 1% 3.66ns ± 2% ~ (p=0.148 n=10+10)
SyscallWork-16 5.15ns ± 1% 5.13ns ± 0% ~ (p=0.188 n=10+9)
SyscallExcess-16 3.89ns ± 2% 3.83ns ± 1% -1.52% (p=0.001 n=10+10)
SyscallExcessWork-16 5.34ns ± 1% 5.31ns ± 0% -0.64% (p=0.000 n=10+9)
PingPongHog-16 397ns ± 7% 394ns ±11% ~ (p=0.912 n=10+10)
StackGrowth-16 67.9ns ± 0% 68.8ns ± 0% +1.28% (p=0.000 n=10+8)
StackGrowthDeep-16 7.70µs ± 1% 8.48µs ± 2% +10.06% (p=0.000 n=9+10)
CreateGoroutines-16 124ns ± 1% 124ns ± 1% ~ (p=0.254 n=10+10)
CreateGoroutinesParallel-16 25.7ns ± 1% 27.6ns ± 2% +7.51% (p=0.000 n=10+10)
CreateGoroutinesCapture-16 823ns ± 1% 821ns ± 2% ~ (p=0.699 n=10+10)
CreateGoroutinesSingle-16 175ns ± 3% 172ns ± 3% -1.90% (p=0.011 n=10+10)
ClosureCall-16 0.11ns ± 7% 0.12ns ± 3% ~ (p=0.842 n=9+10)
WakeupParallelSpinning/0s-16 11.4µs ± 0% 11.4µs ± 0% ~ (p=0.325 n=9+10)
WakeupParallelSpinning/1µs-16 15.4µs ± 0% 15.4µs ± 1% ~ (p=0.955 n=10+10)
WakeupParallelSpinning/2µs-16 18.7µs ± 2% 18.9µs ± 2% ~ (p=0.052 n=10+10)
WakeupParallelSpinning/5µs-16 30.7µs ± 0% 30.7µs ± 0% -0.03% (p=0.003 n=10+10)
WakeupParallelSpinning/10µs-16 48.8µs ± 0% 48.8µs ± 0% ~ (p=0.670 n=10+10)
WakeupParallelSpinning/20µs-16 90.8µs ± 0% 90.8µs ± 0% -0.02% (p=0.004 n=10+10)
WakeupParallelSpinning/50µs-16 211µs ± 0% 211µs ± 0% ~ (p=0.194 n=10+10)
WakeupParallelSpinning/100µs-16 323µs ± 0% 323µs ± 0% ~ (p=1.000 n=10+9)
WakeupParallelSyscall/0s-16 118µs ± 0% 118µs ± 0% ~ (p=0.447 n=10+9)
WakeupParallelSyscall/1µs-16 119µs ± 2% 119µs ± 1% ~ (p=0.604 n=10+9)
WakeupParallelSyscall/2µs-16 120µs ± 1% 121µs ± 3% ~ (p=0.263 n=8+10)
WakeupParallelSyscall/5µs-16 126µs ± 2% 126µs ± 2% ~ (p=0.510 n=10+9)
WakeupParallelSyscall/10µs-16 136µs ± 1% 137µs ± 1% ~ (p=0.095 n=9+10)
WakeupParallelSyscall/20µs-16 156µs ± 2% 157µs ± 3% ~ (p=0.604 n=10+9)
WakeupParallelSyscall/50µs-16 221µs ± 1% 220µs ± 1% ~ (p=0.063 n=10+10)
WakeupParallelSyscall/100µs-16 326µs ± 0% 325µs ± 0% -0.26% (p=0.003 n=9+10)
Matmult-16 0.67ns ± 2% 0.66ns ± 2% ~ (p=0.256 n=10+10)
Fastrand-16 0.08ns ±11% 0.08ns ±13% ~ (p=0.661 n=9+10)
Fastrand64-16 0.08ns ±11% 0.08ns ± 6% ~ (p=0.631 n=10+10)
FastrandHashiter-16 1.76ns ± 1% 1.76ns ± 1% ~ (p=0.854 n=8+8)
Fastrandn/2-16 0.86ns ± 1% 0.86ns ± 1% +1.09% (p=0.000 n=10+9)
Fastrandn/3-16 0.85ns ± 1% 0.86ns ± 1% +1.23% (p=0.001 n=10+10)
Fastrandn/4-16 0.85ns ± 1% 0.87ns ± 2% +1.60% (p=0.000 n=10+10)
Fastrandn/5-16 0.85ns ± 1% 0.86ns ± 1% +1.05% (p=0.000 n=10+10)
IfaceCmp100-16 46.6ns ± 0% 46.1ns ± 0% -1.18% (p=0.000 n=10+10)
IfaceCmpNil100-16 26.8ns ± 0% 26.8ns ± 0% ~ (p=0.777 n=10+8)
EfaceCmpDiff-16 132ns ± 0% 130ns ± 0% -0.95% (p=0.000 n=10+9)
EfaceCmpDiffIndirect-16 209ns ± 0% 211ns ± 0% +1.14% (p=0.000 n=10+9)
Defer-16 3.40ns ± 1% 3.04ns ± 0% -10.67% (p=0.000 n=10+10)
Defer10-16 29.4ns ± 2% 27.2ns ± 3% -7.26% (p=0.000 n=10+10)
DeferMany-16 110ns ± 6% 113ns ± 2% +3.45% (p=0.017 n=9+9)
PanicRecover-16 67.6ns ± 0% 67.7ns ± 2% ~ (p=0.436 n=9+9)
GoroutineProfile/small-nil/idle-16 3.90µs ± 4% 3.86µs ± 2% ~ (p=0.305 n=10+9)
GoroutineProfile/small-nil/loaded-16 4.82µs ± 6% 4.82µs ± 4% ~ (p=0.905 n=10+9)
GoroutineProfile/small/idle-16 103µs ± 3% 102µs ± 3% ~ (p=0.113 n=9+9)
GoroutineProfile/small/loaded-16 432µs ± 5% 440µs ±13% ~ (p=0.604 n=9+10)
GoroutineProfile/large-nil/idle-16 3.86µs ± 3% 3.82µs ± 3% ~ (p=0.210 n=10+10)
GoroutineProfile/large-nil/loaded-16 4.90µs ± 2% 4.90µs ± 5% ~ (p=0.780 n=10+9)
GoroutineProfile/large/idle-16 2.58ms ± 1% 2.52ms ± 1% -2.38% (p=0.000 n=10+10)
GoroutineProfile/large/loaded-16 8.62ms ± 9% 8.90ms ±11% ~ (p=0.400 n=9+10)
GoroutineProfile/sparse-nil/idle-16 3.85µs ± 4% 3.81µs ± 3% ~ (p=0.470 n=10+10)
GoroutineProfile/sparse-nil/loaded-16 4.82µs ± 4% 4.69µs ± 5% ~ (p=0.052 n=10+10)
GoroutineProfile/sparse/idle-16 102µs ± 4% 102µs ± 2% ~ (p=0.497 n=10+9)
GoroutineProfile/sparse/loaded-16 438µs ± 7% 437µs ± 6% ~ (p=0.796 n=10+10)
RWMutexUncontended-16 6.79ns ± 0% 6.78ns ± 0% ~ (p=0.228 n=10+8)
RWMutexWrite100-16 85.4ns ± 0% 87.1ns ± 0% +2.00% (p=0.000 n=10+8)
RWMutexWrite10-16 168ns ±25% 152ns ±11% ~ (p=0.063 n=10+10)
RWMutexWorkWrite100-16 106ns ± 0% 106ns ± 3% ~ (p=0.136 n=10+10)
RWMutexWorkWrite10-16 567ns ± 3% 571ns ± 1% ~ (p=0.326 n=10+9)
SemTable/OneAddrCollision/n=1000-16 15.9µs ± 1% 16.0µs ± 1% +0.50% (p=0.031 n=9+9)
SemTable/ManyAddrCollision/n=1000-16 56.2µs ± 1% 56.8µs ± 1% +1.06% (p=0.000 n=10+10)
SemTable/OneAddrCollision/n=2000-16 32.6µs ± 2% 32.9µs ± 4% ~ (p=0.156 n=10+9)
SemTable/ManyAddrCollision/n=2000-16 118µs ± 0% 119µs ± 0% +0.75% (p=0.000 n=9+10)
SemTable/OneAddrCollision/n=4000-16 65.3µs ± 1% 65.6µs ± 3% ~ (p=0.497 n=9+10)
SemTable/ManyAddrCollision/n=4000-16 245µs ± 0% 248µs ± 2% +1.36% (p=0.000 n=9+10)
SemTable/OneAddrCollision/n=8000-16 131µs ± 1% 130µs ± 1% -1.01% (p=0.002 n=9+10)
SemTable/ManyAddrCollision/n=8000-16 503µs ± 1% 508µs ± 0% +0.97% (p=0.000 n=10+10)
MakeSliceCopy/mallocmove/Byte-16 67.6ns ± 1% 64.1ns ± 2% -5.20% (p=0.000 n=10+10)
MakeSliceCopy/mallocmove/Int-16 65.0ns ± 7% 61.7ns ± 4% -5.08% (p=0.009 n=10+10)
MakeSliceCopy/mallocmove/Ptr-16 88.1ns ± 1% 79.9ns ± 1% -9.29% (p=0.000 n=10+10)
MakeSliceCopy/makecopy/Byte-16 65.2ns ± 6% 63.4ns ± 0% ~ (p=0.500 n=10+8)
MakeSliceCopy/makecopy/Int-16 63.2ns ± 1% 64.1ns ± 1% +1.34% (p=0.001 n=9+9)
MakeSliceCopy/makecopy/Ptr-16 88.1ns ± 1% 80.1ns ± 1% -9.09% (p=0.000 n=10+10)
MakeSliceCopy/nilappend/Byte-16 69.8ns ± 1% 65.7ns ± 3% -5.80% (p=0.000 n=10+10)
MakeSliceCopy/nilappend/Int-16 69.6ns ± 2% 67.2ns ± 1% -3.50% (p=0.000 n=10+9)
MakeSliceCopy/nilappend/Ptr-16 91.5ns ± 1% 83.8ns ± 1% -8.42% (p=0.000 n=9+10)
MakeSlice/Byte-16 6.64ns ± 3% 6.58ns ± 2% ~ (p=0.393 n=10+10)
MakeSlice/Int16-16 8.60ns ± 1% 8.38ns ± 3% -2.48% (p=0.001 n=9+10)
MakeSlice/Int-16 17.7ns ± 3% 16.9ns ± 1% -4.67% (p=0.000 n=10+9)
MakeSlice/Ptr-16 24.0ns ± 3% 23.3ns ± 2% -3.25% (p=0.000 n=10+9)
MakeSlice/Struct/24-16 34.1ns ± 1% 32.0ns ± 1% -6.11% (p=0.000 n=10+10)
MakeSlice/Struct/32-16 39.1ns ± 4% 38.2ns ± 1% ~ (p=0.829 n=10+8)
MakeSlice/Struct/40-16 47.0ns ± 5% 43.0ns ± 2% -8.55% (p=0.000 n=10+9)
GrowSlice/Byte-16 15.3ns ± 3% 15.0ns ± 2% -1.75% (p=0.005 n=9+9)
GrowSlice/Int16-16 18.9ns ± 2% 18.4ns ± 2% -2.71% (p=0.000 n=10+9)
GrowSlice/Int-16 33.9ns ± 1% 32.2ns ± 1% -4.89% (p=0.000 n=10+9)
GrowSlice/Ptr-16 45.3ns ± 2% 43.5ns ± 1% -4.12% (p=0.000 n=10+10)
GrowSlice/Struct/24-16 61.9ns ± 2% 60.0ns ± 4% -3.10% (p=0.002 n=10+10)
GrowSlice/Struct/32-16 79.9ns ± 2% 72.3ns ± 3% -9.58% (p=0.000 n=8+10)
GrowSlice/Struct/40-16 97.1ns ± 7% 88.8ns ± 5% -8.49% (p=0.000 n=10+10)
ExtendSlice/IntSlice-16 21.1ns ± 2% 20.3ns ± 2% -3.71% (p=0.000 n=10+10)
ExtendSlice/PointerSlice-16 26.8ns ± 2% 26.3ns ± 2% -1.86% (p=0.004 n=10+10)
ExtendSlice/NoGrow-16 1.23ns ± 0% 1.30ns ± 1% +5.03% (p=0.000 n=10+10)
Append-16 4.58ns ± 1% 4.53ns ± 0% -1.11% (p=0.000 n=10+10)
AppendGrowByte-16 1.46ms ± 8% 1.42ms ± 7% -3.24% (p=0.035 n=10+10)
AppendGrowString-16 27.8ms ± 4% 27.2ms ± 5% ~ (p=0.052 n=10+10)
AppendSlice/1Bytes-16 1.03ns ± 1% 1.04ns ± 1% ~ (p=0.303 n=10+10)
AppendSlice/4Bytes-16 1.04ns ± 0% 1.05ns ± 0% +0.79% (p=0.000 n=9+10)
AppendSlice/7Bytes-16 1.23ns ± 1% 1.24ns ± 0% +0.45% (p=0.001 n=10+10)
AppendSlice/8Bytes-16 1.24ns ± 0% 1.24ns ± 0% ~ (p=0.183 n=10+10)
AppendSlice/15Bytes-16 1.37ns ± 1% 1.43ns ± 1% +3.88% (p=0.000 n=10+10)
AppendSlice/16Bytes-16 1.37ns ± 1% 1.42ns ± 1% +3.63% (p=0.000 n=9+10)
AppendSlice/32Bytes-16 1.44ns ± 0% 1.47ns ± 1% +1.83% (p=0.000 n=10+10)
AppendSliceLarge/1024Bytes-16 257ns ± 2% 234ns ± 1% -8.96% (p=0.000 n=8+9)
AppendSliceLarge/4096Bytes-16 871ns ± 6% 812ns ± 1% -6.80% (p=0.000 n=10+10)
AppendSliceLarge/16384Bytes-16 3.15µs ± 6% 3.04µs ± 5% ~ (p=0.052 n=10+10)
AppendSliceLarge/65536Bytes-16 10.7µs ± 7% 10.8µs ± 2% ~ (p=0.278 n=10+9)
AppendSliceLarge/262144Bytes-16 42.9µs ± 1% 39.6µs ± 5% -7.75% (p=0.000 n=9+10)
AppendSliceLarge/1048576Bytes-16 147µs ± 4% 144µs ± 4% -2.21% (p=0.035 n=10+10)
AppendStr/1Bytes-16 1.20ns ± 0% 1.20ns ± 0% ~ (p=0.755 n=10+10)
AppendStr/4Bytes-16 1.13ns ± 0% 1.14ns ± 1% +1.20% (p=0.000 n=10+10)
AppendStr/8Bytes-16 1.24ns ± 0% 1.25ns ± 0% +0.93% (p=0.000 n=10+10)
AppendStr/16Bytes-16 1.40ns ± 0% 1.42ns ± 0% +2.10% (p=0.000 n=9+10)
AppendStr/32Bytes-16 1.44ns ± 0% 1.45ns ± 0% +0.99% (p=0.000 n=10+10)
AppendSpecialCase-16 8.64ns ± 1% 8.89ns ± 2% +2.90% (p=0.000 n=10+10)
Copy/1Byte-16 1.24ns ± 1% 1.24ns ± 0% -0.28% (p=0.000 n=10+6)
Copy/1String-16 1.24ns ± 0% 1.23ns ± 0% ~ (p=0.160 n=10+10)
Copy/2Byte-16 1.24ns ± 0% 1.24ns ± 0% ~ (p=0.115 n=10+10)
Copy/2String-16 1.24ns ± 0% 1.24ns ± 1% ~ (p=0.954 n=10+10)
Copy/4Byte-16 1.24ns ± 0% 1.24ns ± 0% -0.44% (p=0.001 n=10+10)
Copy/4String-16 1.23ns ± 0% 1.23ns ± 0% ~ (p=0.081 n=10+10)
Copy/8Byte-16 1.37ns ± 0% 1.34ns ± 0% -1.79% (p=0.000 n=9+9)
Copy/8String-16 1.34ns ± 0% 1.34ns ± 0% -0.58% (p=0.000 n=9+10)
Copy/12Byte-16 1.44ns ± 0% 1.44ns ± 0% ~ (p=0.149 n=9+9)
Copy/12String-16 1.44ns ± 0% 1.45ns ± 0% ~ (p=0.124 n=9+9)
Copy/16Byte-16 1.44ns ± 0% 1.44ns ± 0% -0.19% (p=0.004 n=10+9)
Copy/16String-16 1.44ns ± 0% 1.45ns ± 0% +0.30% (p=0.008 n=10+10)
Copy/32Byte-16 1.63ns ± 1% 1.62ns ± 1% -0.72% (p=0.002 n=10+10)
Copy/32String-16 1.60ns ± 1% 1.64ns ± 0% +2.23% (p=0.000 n=10+10)
Copy/128Byte-16 2.06ns ± 0% 2.06ns ± 0% ~ (p=0.757 n=9+10)
Copy/128String-16 2.07ns ± 0% 2.07ns ± 0% +0.36% (p=0.004 n=10+10)
Copy/1024Byte-16 6.07ns ± 2% 6.00ns ± 1% -1.20% (p=0.000 n=9+10)
Copy/1024String-16 6.05ns ± 0% 5.95ns ± 1% -1.54% (p=0.000 n=10+9)
AppendInPlace/NoGrow/Byte-16 288ns ± 1% 284ns ± 1% -1.58% (p=0.000 n=10+10)
AppendInPlace/NoGrow/1Ptr-16 844ns ± 1% 809ns ± 3% -4.13% (p=0.000 n=9+10)
AppendInPlace/NoGrow/2Ptr-16 1.47µs ± 1% 1.46µs ± 1% ~ (p=0.388 n=9+10)
AppendInPlace/NoGrow/3Ptr-16 1.87µs ± 7% 1.91µs ± 1% ~ (p=0.166 n=10+8)
AppendInPlace/NoGrow/4Ptr-16 2.66µs ± 1% 2.67µs ± 3% ~ (p=0.968 n=9+10)
AppendInPlace/Grow/Byte-16 126ns ± 2% 121ns ± 2% -4.06% (p=0.000 n=10+10)
AppendInPlace/Grow/1Ptr-16 132ns ± 2% 127ns ± 2% -4.28% (p=0.000 n=10+9)
AppendInPlace/Grow/2Ptr-16 196ns ± 2% 188ns ± 1% -4.20% (p=0.000 n=10+8)
AppendInPlace/Grow/3Ptr-16 264ns ± 1% 260ns ± 1% -1.51% (p=0.000 n=9+10)
AppendInPlace/Grow/4Ptr-16 297ns ± 2% 294ns ± 2% ~ (p=0.085 n=10+10)
StackCopyPtr-16 36.4ms ± 2% 36.7ms ± 2% ~ (p=0.481 n=10+10)
StackCopy-16 33.9ms ± 3% 32.6ms ± 1% -3.87% (p=0.000 n=10+8)
StackCopyNoCache-16 1.00ms ± 5% 1.01ms ± 5% ~ (p=0.143 n=10+10)
StackCopyWithStkobj-16 11.0ms ± 3% 10.9ms ± 4% ~ (p=0.579 n=10+10)
Issue18138-16 49.2µs ± 5% 49.0µs ± 4% ~ (p=1.000 n=10+9)
CompareStringEqual-16 1.39ns ± 1% 1.45ns ± 2% +3.80% (p=0.000 n=8+10)
CompareStringIdentical-16 0.55ns ± 1% 0.55ns ± 0% +0.42% (p=0.007 n=10+10)
CompareStringSameLength-16 1.03ns ± 0% 1.03ns ± 0% ~ (p=0.430 n=9+10)
CompareStringDifferentLength-16 0.11ns ± 2% 0.11ns ± 3% ~ (p=0.139 n=9+10)
CompareStringBigUnaligned-16 23.9µs ± 1% 24.0µs ± 1% ~ (p=0.370 n=9+8)
CompareStringBig-16 22.0µs ± 3% 22.2µs ± 3% ~ (p=0.243 n=9+10)
ConcatStringAndBytes-16 10.7ns ± 1% 10.0ns ± 2% -6.33% (p=0.000 n=10+10)
SliceByteToString/1-16 1.34ns ± 0% 1.34ns ± 0% ~ (p=0.057 n=10+10)
SliceByteToString/2-16 6.67ns ± 2% 6.60ns ± 3% ~ (p=0.101 n=10+10)
SliceByteToString/4-16 7.76ns ± 2% 7.56ns ± 3% -2.59% (p=0.001 n=10+10)
SliceByteToString/8-16 9.81ns ± 4% 9.57ns ± 2% -2.48% (p=0.005 n=10+10)
SliceByteToString/16-16 14.0ns ± 3% 13.7ns ± 2% -2.31% (p=0.009 n=10+10)
SliceByteToString/32-16 17.3ns ± 1% 16.7ns ± 2% -3.41% (p=0.000 n=10+10)
SliceByteToString/64-16 25.1ns ± 1% 24.1ns ± 2% -3.93% (p=0.000 n=9+10)
SliceByteToString/128-16 38.6ns ± 1% 36.5ns ± 1% -5.60% (p=0.000 n=10+10)
RuneCount/lenruneslice/ASCII-16 4.12ns ± 0% 4.11ns ± 0% ~ (p=0.382 n=10+10)
RuneCount/lenruneslice/Japanese-16 25.4ns ± 2% 25.6ns ± 2% ~ (p=0.138 n=9+10)
RuneCount/lenruneslice/MixedLength-16 17.1ns ± 0% 17.2ns ± 0% +0.59% (p=0.000 n=9+9)
RuneCount/rangeloop/ASCII-16 3.30ns ± 1% 3.29ns ± 0% ~ (p=0.267 n=10+10)
RuneCount/rangeloop/Japanese-16 20.1ns ± 1% 24.9ns ± 1% +24.31% (p=0.000 n=9+9)
RuneCount/rangeloop/MixedLength-16 16.5ns ± 1% 16.7ns ± 1% +1.34% (p=0.000 n=10+10)
RuneCount/utf8.RuneCountInString/ASCII-16 5.71ns ± 1% 5.73ns ± 2% ~ (p=0.579 n=10+10)
RuneCount/utf8.RuneCountInString/Japanese-16 22.0ns ± 6% 18.4ns ± 3% -16.41% (p=0.000 n=9+10)
RuneCount/utf8.RuneCountInString/MixedLength-16 15.0ns ± 1% 14.9ns ± 1% -1.01% (p=0.004 n=9+10)
RuneIterate/range/ASCII-16 2.69ns ± 1% 2.72ns ± 0% +0.94% (p=0.026 n=10+9)
RuneIterate/range/Japanese-16 24.5ns ± 2% 25.3ns ± 2% +3.23% (p=0.000 n=9+10)
RuneIterate/range/MixedLength-16 17.0ns ± 1% 17.1ns ± 1% +0.85% (p=0.000 n=10+10)
RuneIterate/range1/ASCII-16 2.70ns ± 1% 2.72ns ± 0% ~ (p=0.058 n=9+9)
RuneIterate/range1/Japanese-16 24.1ns ± 2% 25.2ns ± 3% +4.30% (p=0.000 n=10+10)
RuneIterate/range1/MixedLength-16 16.9ns ± 1% 17.7ns ± 0% +5.04% (p=0.000 n=10+8)
RuneIterate/range2/ASCII-16 2.84ns ± 8% 2.72ns ± 1% -4.28% (p=0.003 n=10+9)
RuneIterate/range2/Japanese-16 22.7ns ± 4% 25.2ns ± 3% +10.97% (p=0.000 n=10+10)
RuneIterate/range2/MixedLength-16 17.0ns ± 1% 17.2ns ± 0% +0.95% (p=0.000 n=10+10)
ArrayEqual-16 0.40ns ± 5% 0.35ns ± 2% -11.83% (p=0.000 n=10+10)
Func/Name-16 8.05ns ± 1% 8.09ns ± 1% +0.40% (p=0.025 n=8+10)
Func/Entry-16 1.73ns ± 1% 1.66ns ± 1% -3.93% (p=0.000 n=10+10)
Func/FileLine-16 27.5ns ± 2% 26.0ns ± 0% -5.50% (p=0.000 n=10+10)
[Geo mean] 16.7ns 15.7ns -6.08%
name old speed new speed delta
SetTypePtr-16 11.0GB/s ± 1% 11.0GB/s ± 3% ~ (p=0.684 n=10+10)
SetTypePtr8-16 15.5GB/s ± 0% 15.5GB/s ± 0% ~ (p=0.123 n=10+10)
SetTypePtr16-16 31.0GB/s ± 1% 31.1GB/s ± 0% ~ (p=0.123 n=10+10)
SetTypePtr32-16 62.1GB/s ± 0% 62.2GB/s ± 0% ~ (p=0.123 n=10+10)
SetTypePtr64-16 124GB/s ± 0% 124GB/s ± 0% ~ (p=0.684 n=10+10)
SetTypePtr126-16 146GB/s ± 0% 146GB/s ± 0% ~ (p=0.481 n=10+10)
SetTypePtr128-16 154GB/s ± 0% 154GB/s ± 0% ~ (p=0.243 n=9+10)
SetTypePtrSlice-16 151GB/s ± 1% 151GB/s ± 1% ~ (p=0.497 n=9+10)
SetTypeNode1-16 5.82GB/s ± 1% 5.82GB/s ± 0% ~ (p=0.353 n=10+10)
SetTypeNode1Slice-16 76.1GB/s ± 1% 77.0GB/s ± 1% +1.19% (p=0.000 n=10+10)
SetTypeNode8-16 19.4GB/s ± 0% 19.4GB/s ± 0% ~ (p=0.130 n=8+8)
SetTypeNode8Slice-16 113GB/s ± 0% 113GB/s ± 0% ~ (p=0.604 n=10+9)
SetTypeNode64-16 76.5GB/s ± 0% 76.5GB/s ± 0% ~ (p=0.190 n=10+10)
SetTypeNode64Slice-16 97.8GB/s ± 0% 97.7GB/s ± 0% ~ (p=0.549 n=9+10)
SetTypeNode64Dead-16 95.5GB/s ± 0% 95.7GB/s ± 0% ~ (p=0.118 n=10+6)
SetTypeNode64DeadSlice-16 112GB/s ± 0% 112GB/s ± 0% ~ (p=0.353 n=10+10)
SetTypeNode124-16 146GB/s ± 0% 146GB/s ± 0% ~ (p=0.853 n=10+10)
SetTypeNode124Slice-16 146GB/s ± 5% 149GB/s ± 0% ~ (p=0.315 n=10+10)
SetTypeNode126-16 154GB/s ± 0% 154GB/s ± 0% ~ (p=0.356 n=10+9)
SetTypeNode126Slice-16 150GB/s ± 0% 150GB/s ± 0% ~ (p=0.095 n=9+10)
SetTypeNode128-16 107GB/s ± 0% 107GB/s ± 0% +0.31% (p=0.003 n=9+10)
SetTypeNode128Slice-16 119GB/s ± 0% 120GB/s ± 0% ~ (p=0.156 n=10+9)
SetTypeNode130-16 108GB/s ± 0% 108GB/s ± 0% +0.33% (p=0.002 n=10+10)
SetTypeNode130Slice-16 119GB/s ± 0% 119GB/s ± 0% ~ (p=0.739 n=10+10)
SetTypeNode1024-16 160GB/s ± 0% 159GB/s ± 1% ~ (p=0.113 n=9+9)
SetTypeNode1024Slice-16 144GB/s ± 0% 144GB/s ± 0% ~ (p=0.063 n=10+10)
Hash5-16 2.59GB/s ± 1% 2.49GB/s ± 0% -3.90% (p=0.000 n=10+9)
Hash16-16 7.85GB/s ± 1% 7.23GB/s ± 1% -7.92% (p=0.000 n=10+10)
Hash64-16 24.0GB/s ± 0% 23.9GB/s ± 0% ~ (p=0.190 n=9+9)
Hash1024-16 62.4GB/s ± 0% 62.3GB/s ± 0% -0.16% (p=0.017 n=9+10)
Hash65536-16 74.0GB/s ± 0% 74.0GB/s ± 0% ~ (p=0.796 n=10+10)
Memmove/1-16 1.08GB/s ± 0% 1.08GB/s ± 0% -0.21% (p=0.035 n=10+10)
Memmove/2-16 2.16GB/s ± 0% 2.15GB/s ± 0% ~ (p=0.105 n=10+10)
Memmove/3-16 3.24GB/s ± 1% 3.22GB/s ± 1% -0.49% (p=0.004 n=10+10)
Memmove/4-16 3.89GB/s ± 0% 3.89GB/s ± 0% ~ (p=0.218 n=10+10)
Memmove/5-16 4.42GB/s ± 0% 4.42GB/s ± 0% ~ (p=0.075 n=10+10)
Memmove/6-16 5.31GB/s ± 0% 5.29GB/s ± 1% ~ (p=0.218 n=10+10)
Memmove/7-16 6.19GB/s ± 0% 6.18GB/s ± 0% -0.15% (p=0.035 n=10+9)
Memmove/8-16 7.07GB/s ± 0% 7.07GB/s ± 0% ~ (p=0.684 n=10+10)
Memmove/9-16 7.22GB/s ± 0% 6.68GB/s ± 0% -7.37% (p=0.000 n=10+10)
Memmove/10-16 8.02GB/s ± 0% 7.43GB/s ± 0% -7.38% (p=0.000 n=9+9)
Memmove/11-16 8.83GB/s ± 0% 8.13GB/s ± 0% -7.87% (p=0.000 n=10+9)
Memmove/12-16 9.62GB/s ± 0% 8.89GB/s ± 1% -7.61% (p=0.000 n=10+10)
Memmove/13-16 10.4GB/s ± 0% 9.7GB/s ± 0% -7.20% (p=0.000 n=10+10)
Memmove/14-16 11.2GB/s ± 0% 10.4GB/s ± 1% -7.64% (p=0.000 n=10+9)
Memmove/15-16 12.0GB/s ± 0% 11.1GB/s ± 0% -7.46% (p=0.000 n=10+9)
Memmove/16-16 12.8GB/s ± 0% 11.8GB/s ± 1% -7.67% (p=0.000 n=10+10)
Memmove/32-16 23.8GB/s ± 0% 23.5GB/s ± 1% -1.20% (p=0.000 n=10+10)
Memmove/64-16 44.2GB/s ± 0% 39.1GB/s ± 0% -11.56% (p=0.000 n=10+9)
Memmove/128-16 68.7GB/s ± 0% 63.2GB/s ± 0% -7.95% (p=0.000 n=10+10)
Memmove/256-16 104GB/s ± 0% 103GB/s ± 0% -1.13% (p=0.000 n=10+10)
Memmove/512-16 129GB/s ± 1% 129GB/s ± 0% ~ (p=0.165 n=10+10)
Memmove/1024-16 174GB/s ± 1% 174GB/s ± 1% ~ (p=0.258 n=9+9)
Memmove/2048-16 213GB/s ± 1% 213GB/s ± 2% ~ (p=0.963 n=8+9)
Memmove/4096-16 250GB/s ± 1% 240GB/s ± 4% -3.83% (p=0.006 n=9+9)
MemmoveOverlap/32-16 19.8GB/s ± 1% 19.1GB/s ± 1% -3.40% (p=0.000 n=10+10)
MemmoveOverlap/64-16 39.0GB/s ± 0% 38.8GB/s ± 0% -0.28% (p=0.001 n=9+9)
MemmoveOverlap/128-16 62.2GB/s ± 0% 62.1GB/s ± 0% ~ (p=0.063 n=10+10)
MemmoveOverlap/256-16 96.0GB/s ± 0% 95.8GB/s ± 0% -0.26% (p=0.009 n=10+10)
MemmoveOverlap/512-16 83.6GB/s ±16% 89.2GB/s ± 0% ~ (p=0.696 n=10+8)
MemmoveOverlap/1024-16 141GB/s ± 0% 140GB/s ± 0% -0.28% (p=0.006 n=8+10)
MemmoveOverlap/2048-16 172GB/s ± 0% 171GB/s ± 1% -0.38% (p=0.008 n=9+9)
MemmoveOverlap/4096-16 176GB/s ± 1% 177GB/s ± 1% +0.84% (p=0.001 n=8+10)
MemmoveUnalignedDst/1-16 806MB/s ± 0% 802MB/s ± 1% -0.52% (p=0.023 n=10+10)
MemmoveUnalignedDst/2-16 1.62GB/s ± 0% 1.62GB/s ± 0% -0.11% (p=0.041 n=10+10)
MemmoveUnalignedDst/3-16 2.43GB/s ± 0% 2.43GB/s ± 0% -0.14% (p=0.006 n=9+9)
MemmoveUnalignedDst/4-16 3.24GB/s ± 0% 3.23GB/s ± 1% -0.36% (p=0.007 n=10+10)
MemmoveUnalignedDst/5-16 3.71GB/s ± 0% 3.71GB/s ± 0% ~ (p=0.063 n=10+10)
MemmoveUnalignedDst/6-16 4.48GB/s ± 0% 4.47GB/s ± 0% ~ (p=0.912 n=10+10)
MemmoveUnalignedDst/7-16 5.22GB/s ± 0% 5.22GB/s ± 0% ~ (p=1.000 n=10+10)
MemmoveUnalignedDst/8-16 5.95GB/s ± 0% 5.93GB/s ± 1% -0.40% (p=0.023 n=10+10)
MemmoveUnalignedDst/9-16 6.24GB/s ± 0% 6.24GB/s ± 0% ~ (p=0.912 n=10+10)
MemmoveUnalignedDst/10-16 6.94GB/s ± 0% 6.94GB/s ± 0% ~ (p=0.353 n=10+10)
MemmoveUnalignedDst/11-16 7.64GB/s ± 0% 7.63GB/s ± 0% ~ (p=0.393 n=10+10)
MemmoveUnalignedDst/12-16 8.33GB/s ± 0% 8.33GB/s ± 0% ~ (p=0.971 n=10+10)
MemmoveUnalignedDst/13-16 9.02GB/s ± 0% 9.01GB/s ± 0% ~ (p=0.436 n=10+10)
MemmoveUnalignedDst/14-16 9.71GB/s ± 0% 9.71GB/s ± 0% ~ (p=0.280 n=10+10)
MemmoveUnalignedDst/15-16 10.4GB/s ± 0% 10.4GB/s ± 1% ~ (p=0.853 n=10+10)
MemmoveUnalignedDst/16-16 11.1GB/s ± 0% 11.1GB/s ± 0% ~ (p=0.089 n=10+10)
MemmoveUnalignedDst/32-16 19.7GB/s ± 1% 19.6GB/s ± 0% ~ (p=0.075 n=10+10)
MemmoveUnalignedDst/64-16 38.9GB/s ± 0% 38.8GB/s ± 0% ~ (p=0.218 n=10+10)
MemmoveUnalignedDst/128-16 62.1GB/s ± 0% 62.1GB/s ± 0% ~ (p=0.549 n=10+9)
MemmoveUnalignedDst/256-16 69.4GB/s ± 0% 69.3GB/s ± 0% ~ (p=0.105 n=10+10)
MemmoveUnalignedDst/512-16 124GB/s ± 1% 124GB/s ± 0% ~ (p=0.762 n=10+8)
MemmoveUnalignedDst/1024-16 136GB/s ± 0% 136GB/s ± 1% ~ (p=0.666 n=9+9)
MemmoveUnalignedDst/2048-16 159GB/s ± 0% 159GB/s ± 0% ~ (p=0.574 n=8+8)
MemmoveUnalignedDst/4096-16 161GB/s ± 0% 161GB/s ± 0% ~ (p=1.000 n=9+9)
MemmoveUnalignedDstOverlap/32-16 7.84GB/s ± 0% 7.83GB/s ± 0% ~ (p=0.353 n=10+10)
MemmoveUnalignedDstOverlap/64-16 14.0GB/s ± 0% 14.0GB/s ± 0% ~ (p=0.661 n=10+9)
MemmoveUnalignedDstOverlap/128-16 27.4GB/s ± 0% 27.4GB/s ± 0% ~ (p=0.353 n=10+10)
MemmoveUnalignedDstOverlap/256-16 50.4GB/s ± 0% 50.4GB/s ± 0% ~ (p=0.156 n=10+9)
MemmoveUnalignedDstOverlap/512-16 60.7GB/s ± 4% 62.5GB/s ± 0% +3.07% (p=0.022 n=10+9)
MemmoveUnalignedDstOverlap/1024-16 107GB/s ± 0% 107GB/s ± 0% ~ (p=0.234 n=8+8)
MemmoveUnalignedDstOverlap/2048-16 146GB/s ± 0% 146GB/s ± 1% ~ (p=0.182 n=10+9)
MemmoveUnalignedDstOverlap/4096-16 155GB/s ± 0% 155GB/s ± 0% ~ (p=0.400 n=10+9)
MemmoveUnalignedSrc/1-16 882MB/s ± 0% 884MB/s ± 1% +0.24% (p=0.033 n=10+9)
MemmoveUnalignedSrc/2-16 1.76GB/s ± 1% 1.77GB/s ± 0% +0.27% (p=0.028 n=10+9)
MemmoveUnalignedSrc/3-16 2.43GB/s ± 0% 2.43GB/s ± 0% +0.26% (p=0.027 n=9+10)
MemmoveUnalignedSrc/4-16 3.24GB/s ± 0% 3.24GB/s ± 1% ~ (p=0.079 n=9+10)
MemmoveUnalignedSrc/5-16 3.73GB/s ± 0% 3.73GB/s ± 1% ~ (p=0.829 n=8+10)
MemmoveUnalignedSrc/6-16 4.47GB/s ± 0% 4.49GB/s ± 0% +0.39% (p=0.000 n=10+10)
MemmoveUnalignedSrc/7-16 5.22GB/s ± 0% 5.23GB/s ± 0% ~ (p=0.280 n=10+10)
MemmoveUnalignedSrc/8-16 5.95GB/s ± 0% 5.98GB/s ± 0% +0.39% (p=0.001 n=10+9)
MemmoveUnalignedSrc/9-16 6.24GB/s ± 0% 6.25GB/s ± 0% ~ (p=0.549 n=10+9)
MemmoveUnalignedSrc/10-16 6.93GB/s ± 0% 6.94GB/s ± 0% ~ (p=0.604 n=10+9)
MemmoveUnalignedSrc/11-16 7.63GB/s ± 0% 7.63GB/s ± 1% ~ (p=0.353 n=10+10)
MemmoveUnalignedSrc/12-16 8.32GB/s ± 0% 8.32GB/s ± 0% ~ (p=0.218 n=10+10)
MemmoveUnalignedSrc/13-16 9.02GB/s ± 0% 9.00GB/s ± 1% ~ (p=0.684 n=10+10)
MemmoveUnalignedSrc/14-16 9.71GB/s ± 0% 9.71GB/s ± 0% ~ (p=0.739 n=10+10)
MemmoveUnalignedSrc/15-16 10.4GB/s ± 0% 10.4GB/s ± 0% ~ (p=0.353 n=10+10)
MemmoveUnalignedSrc/16-16 11.1GB/s ± 1% 11.1GB/s ± 0% ~ (p=0.579 n=10+10)
MemmoveUnalignedSrc/32-16 20.0GB/s ± 1% 20.0GB/s ± 0% ~ (p=0.631 n=10+10)
MemmoveUnalignedSrc/64-16 38.8GB/s ± 0% 38.8GB/s ± 0% ~ (p=0.579 n=10+10)
MemmoveUnalignedSrc/128-16 61.2GB/s ± 0% 61.2GB/s ± 0% ~ (p=0.780 n=10+9)
MemmoveUnalignedSrc/256-16 94.8GB/s ± 0% 92.2GB/s ± 1% -2.73% (p=0.000 n=10+10)
MemmoveUnalignedSrc/512-16 119GB/s ± 0% 119GB/s ± 0% +0.26% (p=0.027 n=8+9)
MemmoveUnalignedSrc/1024-16 141GB/s ± 0% 142GB/s ± 1% +1.07% (p=0.000 n=8+10)
MemmoveUnalignedSrc/2048-16 157GB/s ± 0% 157GB/s ± 0% ~ (p=0.167 n=9+8)
MemmoveUnalignedSrc/4096-16 161GB/s ± 0% 162GB/s ± 1% ~ (p=0.063 n=10+10)
MemmoveUnalignedSrcOverlap/32-16 7.93GB/s ± 0% 7.88GB/s ± 0% -0.63% (p=0.000 n=9+10)
MemmoveUnalignedSrcOverlap/64-16 15.5GB/s ± 0% 15.5GB/s ± 0% ~ (p=0.529 n=10+10)
MemmoveUnalignedSrcOverlap/128-16 28.3GB/s ± 0% 28.3GB/s ± 0% ~ (p=0.218 n=10+10)
MemmoveUnalignedSrcOverlap/256-16 41.5GB/s ± 0% 41.6GB/s ± 0% +0.35% (p=0.000 n=10+9)
MemmoveUnalignedSrcOverlap/512-16 68.9GB/s ± 0% 68.8GB/s ± 0% ~ (p=0.541 n=9+8)
MemmoveUnalignedSrcOverlap/1024-16 115GB/s ± 0% 115GB/s ± 0% ~ (p=0.382 n=8+8)
MemmoveUnalignedSrcOverlap/2048-16 155GB/s ± 0% 144GB/s ±18% ~ (p=0.101 n=8+10)
MemmoveUnalignedSrcOverlap/4096-16 160GB/s ± 0% 160GB/s ± 1% ~ (p=0.605 n=9+9)
Memclr/5-16 5.81GB/s ± 1% 5.80GB/s ± 2% ~ (p=0.546 n=9+9)
Memclr/16-16 15.5GB/s ± 0% 15.4GB/s ± 0% -0.32% (p=0.008 n=9+10)
Memclr/64-16 51.8GB/s ± 0% 50.7GB/s ± 0% -2.22% (p=0.000 n=10+10)
Memclr/256-16 113GB/s ± 0% 113GB/s ± 0% ~ (p=0.143 n=10+10)
Memclr/4096-16 239GB/s ± 1% 237GB/s ± 0% -0.87% (p=0.000 n=10+10)
Memclr/65536-16 79.8GB/s ± 0% 79.7GB/s ± 0% ~ (p=0.529 n=10+10)
Memclr/1M-16 74.6GB/s ± 1% 74.7GB/s ± 1% ~ (p=0.529 n=10+10)
Memclr/4M-16 48.7GB/s ± 1% 48.8GB/s ± 0% ~ (p=0.123 n=10+10)
Memclr/8M-16 48.2GB/s ± 2% 48.6GB/s ± 0% ~ (p=0.408 n=10+8)
Memclr/16M-16 43.6GB/s ± 4% 43.3GB/s ± 0% ~ (p=0.173 n=10+8)
Memclr/64M-16 30.7GB/s ± 0% 30.7GB/s ± 0% ~ (p=0.113 n=10+9)
GoMemclr/5-16 6.07GB/s ± 0% 6.08GB/s ± 0% ~ (p=0.367 n=9+10)
GoMemclr/16-16 15.6GB/s ± 0% 15.6GB/s ± 0% -0.22% (p=0.004 n=9+9)
GoMemclr/64-16 56.1GB/s ± 0% 56.1GB/s ± 0% ~ (p=0.968 n=10+9)
GoMemclr/256-16 125GB/s ± 0% 124GB/s ± 0% ~ (p=0.912 n=10+10)
MemclrRange/1K_2K-16 210GB/s ± 0% 224GB/s ± 1% +6.81% (p=0.000 n=10+10)
MemclrRange/2K_8K-16 228GB/s ± 0% 228GB/s ± 0% ~ (p=0.684 n=10+10)
MemclrRange/4K_16K-16 279GB/s ± 0% 279GB/s ± 0% ~ (p=0.780 n=9+10)
MemclrRange/160K_228K-16 80.3GB/s ± 0% 80.2GB/s ± 0% ~ (p=0.165 n=10+10)
Copy/1Byte-16 808MB/s ± 1% 810MB/s ± 0% +0.28% (p=0.000 n=10+8)
Copy/1String-16 810MB/s ± 0% 811MB/s ± 0% ~ (p=0.105 n=10+10)
Copy/2Byte-16 1.62GB/s ± 0% 1.62GB/s ± 0% ~ (p=0.182 n=10+9)
Copy/2String-16 1.62GB/s ± 1% 1.62GB/s ± 1% ~ (p=1.000 n=10+10)
Copy/4Byte-16 3.22GB/s ± 0% 3.24GB/s ± 0% +0.46% (p=0.000 n=10+10)
Copy/4String-16 3.24GB/s ± 0% 3.24GB/s ± 0% ~ (p=0.075 n=10+10)
Copy/8Byte-16 5.86GB/s ± 0% 5.96GB/s ± 0% +1.82% (p=0.000 n=9+9)
Copy/8String-16 5.95GB/s ± 0% 5.99GB/s ± 0% +0.59% (p=0.000 n=9+10)
Copy/12Byte-16 8.32GB/s ± 0% 8.32GB/s ± 0% ~ (p=0.190 n=9+9)
Copy/12String-16 8.31GB/s ± 0% 8.29GB/s ± 0% ~ (p=0.068 n=9+10)
Copy/16Byte-16 11.1GB/s ± 0% 11.1GB/s ± 0% +0.18% (p=0.003 n=10+9)
Copy/16String-16 11.1GB/s ± 0% 11.1GB/s ± 0% -0.31% (p=0.009 n=10+10)
Copy/32Byte-16 19.6GB/s ± 1% 19.8GB/s ± 1% +0.72% (p=0.002 n=10+10)
Copy/32String-16 20.0GB/s ± 0% 19.5GB/s ± 0% -2.19% (p=0.000 n=10+10)
Copy/128Byte-16 62.2GB/s ± 0% 62.1GB/s ± 0% ~ (p=0.661 n=9+10)
Copy/128String-16 61.9GB/s ± 0% 61.7GB/s ± 0% -0.35% (p=0.005 n=10+10)
Copy/1024Byte-16 169GB/s ± 2% 171GB/s ± 1% +1.21% (p=0.000 n=9+10)
Copy/1024String-16 169GB/s ± 0% 172GB/s ± 1% +1.57% (p=0.000 n=10+9)
CompareStringBigUnaligned-16 43.8GB/s ± 1% 43.7GB/s ± 1% ~ (p=0.370 n=9+8)
CompareStringBig-16 47.6GB/s ± 3% 47.3GB/s ± 3% ~ (p=0.243 n=9+10)
[Geo mean] 25.3GB/s 28.0GB/s +10.66%
name old p50-ns new p50-ns delta
ReadMemStatsLatency-16 98.4k ±37% 112.7k ±64% ~ (p=0.436 n=10+10)
ReadMetricsLatency-16 1.69k ± 3% 1.70k ± 2% ~ (p=0.646 n=9+10)
GoroutineProfile/small-nil/idle-16 3.75k ± 4% 3.72k ± 1% ~ (p=0.447 n=10+9)
GoroutineProfile/small-nil/loaded-16 4.33k ± 3% 4.31k ± 5% ~ (p=0.931 n=9+9)
GoroutineProfile/small/idle-16 102k ± 3% 101k ± 4% ~ (p=0.113 n=9+9)
GoroutineProfile/small/loaded-16 214k ± 3% 215k ± 6% ~ (p=0.842 n=9+10)
GoroutineProfile/large-nil/idle-16 3.70k ± 2% 3.65k ± 2% ~ (p=0.075 n=10+10)
GoroutineProfile/large-nil/loaded-16 4.36k ± 3% 4.31k ±10% ~ (p=0.631 n=10+10)
GoroutineProfile/large/idle-16 2.56M ± 1% 2.51M ± 1% -2.28% (p=0.000 n=10+10)
GoroutineProfile/large/loaded-16 6.77M ± 4% 6.85M ±19% ~ (p=0.536 n=7+10)
GoroutineProfile/sparse-nil/idle-16 3.66k ± 1% 3.64k ± 2% ~ (p=0.136 n=9+9)
GoroutineProfile/sparse-nil/loaded-16 4.25k ± 5% 4.15k ± 4% ~ (p=0.190 n=10+10)
GoroutineProfile/sparse/idle-16 102k ± 4% 101k ± 3% ~ (p=0.447 n=10+9)
GoroutineProfile/sparse/loaded-16 216k ± 4% 218k ± 4% ~ (p=0.549 n=9+10)
[Geo mean] 35.8k 35.9k +0.35%
name old p90-ns new p90-ns delta
ReadMemStatsLatency-16 983k ±310% 200k ±34% -79.62% (p=0.034 n=10+8)
ReadMetricsLatency-16 4.01k ±35% 3.75k ±17% ~ (p=0.315 n=10+10)
GoroutineProfile/small-nil/idle-16 4.21k ± 4% 4.27k ± 8% ~ (p=0.968 n=9+10)
GoroutineProfile/small-nil/loaded-16 5.58k ± 8% 5.35k ±12% ~ (p=0.190 n=10+10)
GoroutineProfile/small/idle-16 108k ± 6% 107k ± 7% ~ (p=0.497 n=9+10)
GoroutineProfile/small/loaded-16 450k ± 5% 432k ± 3% -3.92% (p=0.002 n=9+9)
GoroutineProfile/large-nil/idle-16 4.13k ± 7% 4.04k ± 2% ~ (p=0.181 n=10+8)
GoroutineProfile/large-nil/loaded-16 5.76k ± 4% 5.67k ± 5% ~ (p=0.190 n=10+10)
GoroutineProfile/large/idle-16 2.63M ± 2% 2.58M ± 1% -1.97% (p=0.000 n=10+10)
GoroutineProfile/large/loaded-16 16.9M ± 4% 17.0M ± 6% ~ (p=0.661 n=9+10)
GoroutineProfile/sparse-nil/idle-16 4.21k ±10% 4.07k ± 7% ~ (p=0.128 n=10+10)
GoroutineProfile/sparse-nil/loaded-16 5.55k ± 8% 5.38k ± 6% ~ (p=0.089 n=10+10)
GoroutineProfile/sparse/idle-16 106k ± 4% 106k ± 3% ~ (p=0.661 n=10+9)
GoroutineProfile/sparse/loaded-16 454k ± 6% 441k ± 6% -2.86% (p=0.043 n=10+10)
[Geo mean] 58.4k 51.0k -12.61%
name old p99-ns new p99-ns delta
ReadMemStatsLatency-16 983k ±310% 200k ±34% -79.62% (p=0.034 n=10+8)
ReadMetricsLatency-16 26.6k ±22% 26.6k ±17% ~ (p=0.971 n=10+10)
GoroutineProfile/small-nil/idle-16 5.27k ±12% 5.19k ±12% ~ (p=0.579 n=10+10)
GoroutineProfile/small-nil/loaded-16 7.28k ± 3% 7.04k ± 9% ~ (p=0.113 n=9+10)
GoroutineProfile/small/idle-16 114k ± 6% 113k ± 6% ~ (p=0.604 n=9+10)
GoroutineProfile/small/loaded-16 4.84M ±70% 6.06M ±131% ~ (p=0.842 n=9+10)
GoroutineProfile/large-nil/idle-16 5.38k ±19% 5.26k ±13% ~ (p=0.912 n=10+10)
GoroutineProfile/large-nil/loaded-16 7.38k ± 3% 7.23k ± 4% ~ (p=0.143 n=10+10)
GoroutineProfile/large/idle-16 2.79M ± 5% 2.72M ± 3% ~ (p=0.089 n=10+10)
GoroutineProfile/large/loaded-16 24.0M ±24% 24.9M ±29% ~ (p=0.684 n=10+10)
GoroutineProfile/sparse-nil/idle-16 5.32k ±17% 5.49k ±17% ~ (p=0.684 n=10+10)
GoroutineProfile/sparse-nil/loaded-16 7.25k ± 4% 6.97k ± 5% -3.90% (p=0.005 n=9+10)
GoroutineProfile/sparse/idle-16 113k ± 5% 112k ± 6% ~ (p=0.631 n=10+10)
GoroutineProfile/sparse/loaded-16 4.00M ±66% 4.26M ±65% ~ (p=0.489 n=9+9)
[Geo mean] 107k 97k -9.55%
name old alloc/op new alloc/op delta
NewEmptyMap-16 0.00B 0.00B ~ (all equal)
NewSmallMap-16 0.00B 0.00B ~ (all equal)
MapPopulate/1-16 0.00B 0.00B ~ (all equal)
MapPopulate/10-16 179B ± 0% 179B ± 0% ~ (all equal)
MapPopulate/100-16 3.35kB ± 0% 3.35kB ± 0% ~ (p=0.294 n=10+8)
MapPopulate/1000-16 53.3kB ± 0% 53.3kB ± 0% ~ (p=1.000 n=8+10)
MapPopulate/10000-16 428kB ± 0% 428kB ± 0% ~ (p=0.469 n=10+10)
MapPopulate/100000-16 3.62MB ± 0% 3.62MB ± 0% ~ (p=0.888 n=9+10)
MapStringConversion/32/simple-16 0.00B 0.00B ~ (all equal)
MapStringConversion/32/struct-16 0.00B 0.00B ~ (all equal)
MapStringConversion/32/array-16 0.00B 0.00B ~ (all equal)
MapStringConversion/64/simple-16 0.00B 0.00B ~ (all equal)
MapStringConversion/64/struct-16 0.00B 0.00B ~ (all equal)
MapStringConversion/64/array-16 0.00B 0.00B ~ (all equal)
NewEmptyMapHintLessThan8-16 0.00B 0.00B ~ (all equal)
NewEmptyMapHintGreaterThan8-16 1.15kB ± 0% 1.15kB ± 0% ~ (all equal)
MapAppendAssign/Int32/256-16 41.7B ±15% 44.3B ±12% ~ (p=0.106 n=10+10)
MapAppendAssign/Int32/65536-16 22.6B ± 6% 23.5B ± 6% +4.19% (p=0.025 n=9+10)
MapAppendAssign/Int64/256-16 43.5B ±10% 42.9B ± 7% ~ (p=0.757 n=10+10)
MapAppendAssign/Int64/65536-16 24.7B ± 7% 21.8B ± 6% -11.74% (p=0.000 n=10+10)
MapAppendAssign/Str/256-16 87.6B ±10% 89.2B ± 9% ~ (p=0.379 n=10+10)
MapAppendAssign/Str/65536-16 45.1B ±14% 47.2B ± 8% ~ (p=0.150 n=10+9)
CreateGoroutinesCapture-16 144B ± 0% 144B ± 0% ~ (all equal)
[Geo mean] 769B 770B +0.21%
name old allocs/op new allocs/op delta
NewEmptyMap-16 0.00 0.00 ~ (all equal)
NewSmallMap-16 0.00 0.00 ~ (all equal)
MapPopulate/1-16 0.00 0.00 ~ (all equal)
MapPopulate/10-16 1.00 ± 0% 1.00 ± 0% ~ (all equal)
MapPopulate/100-16 17.0 ± 0% 17.0 ± 0% ~ (all equal)
MapPopulate/1000-16 73.0 ± 0% 73.0 ± 0% ~ (all equal)
MapPopulate/10000-16 320 ± 0% 320 ± 0% ~ (p=1.000 n=10+10)
MapPopulate/100000-16 4.00k ± 0% 4.00k ± 0% ~ (p=0.753 n=10+10)
MapStringConversion/32/simple-16 0.00 0.00 ~ (all equal)
MapStringConversion/32/struct-16 0.00 0.00 ~ (all equal)
MapStringConversion/32/array-16 0.00 0.00 ~ (all equal)
MapStringConversion/64/simple-16 0.00 0.00 ~ (all equal)
MapStringConversion/64/struct-16 0.00 0.00 ~ (all equal)
MapStringConversion/64/array-16 0.00 0.00 ~ (all equal)
NewEmptyMapHintLessThan8-16 0.00 0.00 ~ (all equal)
NewEmptyMapHintGreaterThan8-16 1.00 ± 0% 1.00 ± 0% ~ (all equal)
MapAppendAssign/Int32/256-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Int32/65536-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Int64/256-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Int64/65536-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Str/256-16 0.00 0.00 ~ (all equal)
MapAppendAssign/Str/65536-16 0.00 0.00 ~ (all equal)
CreateGoroutinesCapture-16 5.00 ± 0% 5.00 ± 0% ~ (all equal)
[Geo mean] 26.0 26.0 +0.00%
Change-Id: I5fb03e93df8b380e04795afbdcd1c94aeeecacc6
Reviewed-on: https://go-review.googlesource.com/c/go/+/454255
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Jakub Ciolek <jakub@ciolek.dev>
TryBot-Result: Gopher Robot <gobot@golang.org>
|
|
Than McIntosh
|
066b780502 |
cmd/link: load host archive libc_nonshared.a for -fstack-protector
For internal linking, at the point where we finish reading libgcc.a, if the symbol "__stack_chk_local" is still undefined, then read in the host archive libc_nonshared.a as well. Updates #57261. Change-Id: I0b1e485aa50aa7940db8cabcb3b9a7959bf99ce7 Reviewed-on: https://go-review.googlesource.com/c/go/+/456856 Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Than McIntosh <thanm@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
|
Cuong Manh Le
|
d42c08a2be |
reflect,runtime: add Value.Clear
Fixes #55002 Change-Id: I7d0f14cc54f67f2769b51d2efafc4ae3714f0e3d Reviewed-on: https://go-review.googlesource.com/c/go/+/457895 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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Keith Randall
|
79edd1d19d |
runtime: remove go119MemoryLimitSupport flag
Change-Id: I207480d991c6242a1610795605c5ec6a3b3c59de Reviewed-on: https://go-review.googlesource.com/c/go/+/463225 Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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Keith Randall
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469afbcc46 |
runtime: remove go119ConcurrentGoroutineProfile flag
Change-Id: If7a248374dcb2c276d2d85a4863eb2ed1bc246a4 Reviewed-on: https://go-review.googlesource.com/c/go/+/463226 Run-TryBot: Keith Randall <khr@golang.org> Auto-Submit: Keith Randall <khr@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Rhys Hiltner <rhys@justin.tv> |
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Keith Randall
|
915af1b7ce |
runtime: remove go118UseTimerCreateProfiler
Change-Id: I37b15690fef6ca5354def834b1f6094e133a9fe4 Reviewed-on: https://go-review.googlesource.com/c/go/+/463736 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Rhys Hiltner <rhys@justin.tv> Auto-Submit: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> |
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Bryan C. Mills
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d0851777da |
runtime/debug: expand fuzz corpus for FuzzParseBuildInfoRoundTrip
Updates #51026 Change-Id: Id7af2ffa8c99970274b2a2b12622d986ea105b1b Reviewed-on: https://go-review.googlesource.com/c/go/+/384161 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Russ Cox <rsc@golang.org> Auto-Submit: Bryan Mills <bcmills@google.com> Run-TryBot: Bryan Mills <bcmills@google.com> |
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Quim Muntal
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a9780d8dfd |
Revert "runtime: use explicit NOFRAME on darwin/amd64"
This reverts CL 460235. Reason for revert: This breaks darwin 10 and 11 Change-Id: I3c663ebe3b77eba45a006a3ebec5cabe667faa9e Reviewed-on: https://go-review.googlesource.com/c/go/+/463635 Auto-Submit: Quim Muntal <quimmuntal@gmail.com> Run-TryBot: Quim Muntal <quimmuntal@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> |
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qmuntal
|
cea70301e2 |
runtime: use explicit NOFRAME on darwin/amd64
This CL marks some darwin assembly functions as NOFRAME to avoid relying on the implicit amd64 NOFRAME heuristic, where NOSPLIT functions without stack were also marked as NOFRAME. Change-Id: I797f3909bcf7f7aad304e4ede820c884231e54f6 Reviewed-on: https://go-review.googlesource.com/c/go/+/460235 Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
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qmuntal
|
2c7856087a |
runtime: delete unused cbctxts variable on windows assembly
runtime·cbctxts has been unused since CL 258938, but it was left over. Change-Id: I374ad26e668a36994e41f5d17593b33090bdc644 Reviewed-on: https://go-review.googlesource.com/c/go/+/463119 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Quim Muntal <quimmuntal@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> |
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qmuntal
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7a5460ed9b |
runtime: mark amd64 runtime·rt0_go as NOFRAME
This CL adds the NOFRAME flag to runtime·rt0_go, which should had been added in CL 459395 but didn't and broke fix windows-amd64-2008. Change-Id: I4583f2034bf114e1f7aaddef9ba505f53536c3eb Reviewed-on: https://go-review.googlesource.com/c/go/+/463120 Run-TryBot: Quim Muntal <quimmuntal@gmail.com> Reviewed-by: Bryan Mills <bcmills@google.com> Auto-Submit: Quim Muntal <quimmuntal@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> |
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Than McIntosh
|
cc82867f6b |
runtime/race: update race_windows_amd64.syso
Update race_windows_amd64.syso to latest tsan (V3) runtime. This version of the runtime depends on libsynchronization.a, so to use this syso, you need to also be using a sufficiently up to date version of GCC (notably GCC 5.1, installed on the Go windows builders right now, does not include this library). Updates #48231. Updates #35006. Fixes #49761. Change-Id: Ia1e2b1d8fe7e2c99728150734935a2c522006caa Reviewed-on: https://go-review.googlesource.com/c/go/+/420197 Reviewed-by: Keith Randall <khr@google.com> Run-TryBot: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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Tobias Klauser
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91c1c5922d |
runtime/cgo: use //go:build lines in C and assembly files
Replace deprecated // +build lines by their respective //go:build line counterpart. Also remove build constraints implied by file name or type. Change-Id: I8d18cd40071ca28d7654da8f0d22841f43729ca6 Reviewed-on: https://go-review.googlesource.com/c/go/+/460538 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
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qmuntal
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083d94f69c |
runtime: use explicit NOFRAME on windows/amd64
This CL marks non-leaf nosplit assembly functions as NOFRAME to avoid relying on the implicit amd64 NOFRAME heuristic, where NOSPLIT functions without stack were also marked as NOFRAME. Updates #57302 Updates #40044 Change-Id: Ia4d26f8420dcf2b54528969ffbf40a73f1315d61 Reviewed-on: https://go-review.googlesource.com/c/go/+/459395 Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Quim Muntal <quimmuntal@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
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Jakub Ciolek
|
02704d5159 |
runtime: switch AMD64's publicationBarrier to ABIInternal
Shrinks a few runtime functions: runtime runtime.mallocgc 2127 -> 2117 (-0.47%) runtime.(*mheap).initSpan 652 -> 639 (-1.99%) runtime.(*mspan).userArenaNextFree 825 -> 808 (-2.06%) file before after Δ % runtime.s 512473 512414 -59 -0.012% total 20843331 20843272 -59 -0.000% Change-Id: Ifaca7abb6db3467b73945fac71496dd7527e6863 Reviewed-on: https://go-review.googlesource.com/c/go/+/462296 Auto-Submit: Keith Randall <khr@golang.org> Run-TryBot: Jakub Ciolek <jakub@ciolek.dev> Reviewed-by: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Keith Randall <khr@golang.org> |
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qmuntal
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7b5a34418c |
runtime: remove unused badsignal2 on windows
This CL removes badsignal2 function, as it is unused on Windows. badsignal2 was originally intended to abort the process when an exception was raised on a non-Go thread, following the same approach as Linux and others. Since it was added, back on https://golang.org/cl/5797068, it has caused several issues on Windows, see #8224 and #50877. That's because we can't know wether the signal is bad or not, as our trap might not be at the end of the exception handler chain. To fix those issues, https://golang.org/cl/104200046 and CL 442896 stopped calling badsignal2, and CL 458135 removed one last incorrect call on amd64 and 386. Change-Id: I5bd31ee2672118ae0f1a2c8b46a1bb0f4893a011 Reviewed-on: https://go-review.googlesource.com/c/go/+/463116 Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Quim Muntal <quimmuntal@gmail.com> Reviewed-by: Alex Brainman <alex.brainman@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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qmuntal
|
cf9263dee1 |
runtime: factor out windows sigtramp
This CL factors out part of the Windows sigtramp implementation, which was duplicated in all four architectures. The new common code is implemented in Go rather than in assembly, which will make Windows error handling easier to reason and maintain. While here, implement the control flow guard workaround on windows/386, which almost comes for free. Change-Id: I0bf38c28c54793225126e161bd95527a62de05e0 Reviewed-on: https://go-review.googlesource.com/c/go/+/458135 Run-TryBot: Quim Muntal <quimmuntal@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Alex Brainman <alex.brainman@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Michael Pratt <mpratt@google.com> |
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qmuntal
|
e39c7a37f0 |
runtime: run TestVectoredHandlerDontCrashOnLibrary on 386 and arm64
This CL updates TestVectoredHandlerDontCrashOnLibrary so it can run on windows/386 and windows/arm64. It still can't run on windows/arm as it does not support c-shared buildmode (see #43800). Change-Id: Id1577687e165e77d27633c632634ecf86e6e9d6f Reviewed-on: https://go-review.googlesource.com/c/go/+/463117 Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Quim Muntal <quimmuntal@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Alex Brainman <alex.brainman@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> |
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qmuntal
|
28f8dbd7b9 |
runtime,cmd/internal/obj/x86: use TEB TLS slots on windows/i386
This CL redesign how we get the TLS pointer on windows/i386. It applies the same changes as done in CL 431775 for windows/amd64. We were previously reading it from the [TEB] arbitrary data slot, located at 0x14(FS), which can only hold 1 TLS pointer. With this CL, we will read the TLS pointer from the TEB TLS slot array, located at 0xE10(GS). The TLS slot array can hold multiple TLS pointers, up to 64, so multiple Go runtimes running on the same thread can coexists with different TLS. Each new TLS slot has to be allocated via [TlsAlloc], which returns the slot index. This index can then be used to get the slot offset from GS with the following formula: 0xE10 + index*4. The slot index is fixed per Go runtime, so we can store it in runtime.tls_g and use it latter on to read/update the TLS pointer. Loading the TLS pointer requires the following asm instructions: MOVQ runtime.tls_g, AX MOVQ AX(FS), AX Notice that this approach will now be implemented in all the supported windows arches. [TEB]: https://en.wikipedia.org/wiki/Win32_Thread_Information_Block [TlsAlloc]: https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-tlsalloc Change-Id: If4550b0d44694ee6480d4093b851f4991a088b32 Reviewed-on: https://go-review.googlesource.com/c/go/+/454675 Reviewed-by: Michael Pratt <mpratt@google.com> Run-TryBot: Quim Muntal <quimmuntal@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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j2gg0s
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9411075748 |
runtime: remove duplicate check of work.full in gcMark.
Change-Id: I659669d7259e7cf73f730232cda11d8525a4aabc
GitHub-Last-Rev:
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David Chase
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e22bd2348c |
internal/abi,runtime: refactor map constants into one place
Previously TryBot-tested with bucket bits = 4. Also tested locally with bucket bits = 5. This makes it much easier to change the size of map buckets, and hopefully provides pointers to all the code that in some way depends on details of map layout. Change-Id: I9f6669d1eadd02f182d0bc3f959dc5f385fa1683 Reviewed-on: https://go-review.googlesource.com/c/go/+/462115 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: David Chase <drchase@google.com> Reviewed-by: Austin Clements <austin@google.com> |
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Daniel Martí
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e2fe35363d |
runtime: use copy as spotted by staticcheck
Change-Id: Ibffe46bad7d30df9380ba18d49eeb6782406a1aa Reviewed-on: https://go-review.googlesource.com/c/go/+/463115 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> |
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Than McIntosh
|
cf70d37967 |
runtime/coverage: avoid non-test coverage profiles in test report helper
When walking through the set of coverage data files generated from a "go test -cover" run, it's possible to encounter pods (clumps of data files) that were generated by a run from an instrumented Go tool (for example, cmd/compile). Add a guard to the test reporting code to ensure that it only processes files created by the currently running test. Fixes #57924. Change-Id: I1bb7dce88305e1088162e3cb1df628486ecee1c1 Reviewed-on: https://go-review.googlesource.com/c/go/+/462756 Reviewed-by: David Chase <drchase@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Than McIntosh <thanm@google.com> |
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Srinivas Pokala
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3e77efc720 |
cmd/internal/obj/s390x, runtime: fix breakpoint in s390x
Currently runtime.Breakpoint generates SIGSEGV in s390x. The solution to this is add new asm instruction BRRK of type FORMAT_E for the breakpoint exception. Fixes #52103 Change-Id: I8358a56e428849a5d28d5ade141e1d7310bee084 Reviewed-on: https://go-review.googlesource.com/c/go/+/457456 Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> |
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liu-xuewen
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57236fe9f7 |
runtime: remove 104 byte stack guard
The number 104 appears to date back to the
first implementation of split stacks in
https://go.googlesource.com/go/+/b987f7a757f53f460973622a36eebb696f9b5060.
That change introduces a 104 byte stack guard.
it doesn't makes any sense today.
Change-Id: I73069f6d1a827653af63e616f0119fbac809882e
GitHub-Last-Rev:
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Marcel Meyer
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b419db6c15 |
all: fix typos in go file comments
This is the second round to look for spelling mistakes. This time the
manual sifting of the result list was made easier by filtering out
capitalized and camelcase words.
grep -r --include '*.go' -E '^// .*$' . | aspell list | grep -E -x '[A-Za-z]{1}[a-z]*' | sort | uniq
This PR will be imported into Gerrit with the title and first
comment (this text) used to generate the subject and body of
the Gerrit change.
Change-Id: Ie8a2092aaa7e1f051aa90f03dbaf2b9aaf5664a9
GitHub-Last-Rev:
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Russ Cox
|
213495a4a6 |
internal/godebug: export non-default-behavior counters in runtime/metrics
Allow GODEBUG users to report how many times a setting resulted in non-default behavior. Record non-default-behaviors for all existing GODEBUGs. Also rework tests to ensure that runtime is in sync with runtime/metrics.All, and generate docs mechanically from metrics.All. For #56986. Change-Id: Iefa1213e2a5c3f19ea16cd53298c487952ef05a4 Reviewed-on: https://go-review.googlesource.com/c/go/+/453618 TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com> |
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Russ Cox
|
aa51c40b1c |
runtime: replace panic(nil) with panic(new(runtime.PanicNilError))
Long ago we decided that panic(nil) was too unlikely to bother
making a special case for purposes of recover. Unfortunately,
it has turned out not to be a special case. There are many examples
of code in the Go ecosystem where an author has written panic(nil)
because they want to panic and don't care about the panic value.
Using panic(nil) in this case has the unfortunate behavior of
making recover behave as though the goroutine isn't panicking.
As a result, code like:
func f() {
defer func() {
if err := recover(); err != nil {
log.Fatalf("panicked! %v", err)
}
}()
call1()
call2()
}
looks like it guarantees that call2 has been run any time f returns,
but that turns out not to be strictly true. If call1 does panic(nil),
then f returns "successfully", having recovered the panic, but
without calling call2.
Instead you have to write something like:
func f() {
done := false
defer func() {
if err := recover(); !done {
log.Fatalf("panicked! %v", err)
}
}()
call1()
call2()
done = true
}
which defeats nearly the whole point of recover. No one does this,
with the result that almost all uses of recover are subtly broken.
One specific broken use along these lines is in net/http, which
recovers from panics in handlers and sends back an HTTP error.
Users discovered in the early days of Go that panic(nil) was a
convenient way to jump out of a handler up to the serving loop
without sending back an HTTP error. This was a bug, not a feature.
Go 1.8 added panic(http.ErrAbortHandler) as a better way to access the feature.
Any lingering code that uses panic(nil) to abort an HTTP handler
without a failure message should be changed to use http.ErrAbortHandler.
Programs that need the old, unintended behavior from net/http
or other packages can set GODEBUG=panicnil=1 to stop the run-time error.
Uses of recover that want to detect panic(nil) in new programs
can check for recover returning a value of type *runtime.PanicNilError.
Because the new GODEBUG is used inside the runtime, we can't
import internal/godebug, so there is some new machinery to
cross-connect those in this CL, to allow a mutable GODEBUG setting.
That won't be necessary if we add any other mutable GODEBUG settings
in the future. The CL also corrects the handling of defaulted GODEBUG
values in the runtime, for #56986.
Fixes #25448.
Change-Id: I2b39c7e83e4f7aa308777dabf2edae54773e03f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/461956
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
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|
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Bryan C. Mills
|
fbf14ae166 |
runtime: remove arbitrary GOARCH constraints in finalizer tests
These tests were only run on GOARCH=amd64, but the rationale given in CL 11858043 was GC precision on 32-bit platforms. Today, we have far more 64-bit platforms than just amd64, and I believe that GC precision on 32-bit platforms has been substantially improved as well. The GOARCH restriction seems unnecessary. Updates #57166. Updates #5368. Change-Id: I45c608b6fa721012792c96d4ed94a6d772b90210 Reviewed-on: https://go-review.googlesource.com/c/go/+/456120 Run-TryBot: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Bryan Mills <bcmills@google.com> Reviewed-by: Austin Clements <austin@google.com> |
|
Archana R
|
1c65b69bd1 |
runtime: fix performance regression in morestack_noctxt on ppc64
In the fix for 54332 the MOVD R1, R1 instruction was added to morestack_noctxt function to set the SPWRITE bit. However, the instruction MOVD R1, R1 results in or r1,r1,r1 which is a special instruction on ppc64 architecture as it changes the thread priority and can negatively impact performance in some cases. More details on such similar nops can be found in Power ISA v3.1 Book II on Power ISA Virtual Environment architecture in the chapter on Program Priority Registers and Or instructions. Replacing this by OR R0, R1 has the same affect on setting SPWRITE as needed by the first fix but does not affect thread priority and hence does not cause the degradation in performance Hash65536-64 2.81GB/s ±10% 16.69GB/s ± 0% +494.44% Fixes #57741 Change-Id: Ib912e3716c6afd277994d6c1c5b2891f82225d50 Reviewed-on: https://go-review.googlesource.com/c/go/+/461597 Reviewed-by: Benny Siegert <bsiegert@gmail.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Auto-Submit: Benny Siegert <bsiegert@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com> |
|
zhengchaopu
|
18625d9bec |
runtime: fix incorrect comment
Fix incorrect comment for the runtime package.
Change-Id: Iab889eff0e9c622afbed959d32b8b5f0ed0bfebf
GitHub-Last-Rev:
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|
Russ Cox
|
76d39ae349 |
cmd/link, runtime: Apple libc atfork workaround take 3
CL 451735 worked around bugs in Apple's atfork handlers by calling notify_is_valid_token and xpc_atfork_child at startup, so that init code that wouldn't be safe in the child process would be warmed up in the parent process instead, but xpc_atfork_child broke use of the xpc library in Go programs, and xpc is internally used by various macOS frameworks (#57263). CL 459175 reverted that change, and then CL 459176 tried a new approach: use __fork, which doesn't call any of the atfork handlers at all. That worked, but an Apple engineer reviewing the change in private email suggests that since __fork is not public API, it should be avoided. The same engineer (with access to the source code for the xpc library) suggests that the breakage in #57263 is caused by xpc_atfork_child marking the library as unusable, expecting an imminent call to exec, and that calling xpc_date_create_from_current instead would do the necessary initialization without marking xpc as unusable. CL 460475 reverted that change, to prepare for this one. This CL goes back to the original “call functions to warm things up” approach, replacing xpc_atfork_child with xpc_date_create_from_current. The CL also updates cmd/link to use OS and SDK version 10.13.0 for x86 macOS binaries, up from 10.9.0, also suggested by the Apple engineer. Combined with the two warmup calls, this makes the fork hangs go away. The minimum macOS version has been 10.13 High Sierra since Go 1.17, so there should be no problem with writing that in the binaries too. Fixes #33565. Fixes #56784. Fixes #57263. Fixes #57577. Change-Id: I20769d9daa1fe9ea930f8009481335f8a14dc21b Reviewed-on: https://go-review.googlesource.com/c/go/+/460476 Auto-Submit: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> |
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Ian Lance Taylor
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376076f3c6 |
runtime: skip TestCgoPprofCallback in short mode, don't run in parallel
Fixes #54778 Change-Id: If9aef0c06b993ef2aedbeea9452297ee9f11fa06 Reviewed-on: https://go-review.googlesource.com/c/go/+/460461 Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Michael Pratt <mpratt@google.com> Run-TryBot: Ian Lance Taylor <iant@google.com> |
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Austin Clements
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0bbd67e52f |
runtime/pprof: document possibility of empty stacks
I spent quite a while determining the cause of empty stacks in profiles and reasoning out why this is okay. There isn't a great place to record this knowledge, but a documentation comment on appendLocsForStack is better than nothing. Updates #51550. Change-Id: I2eefc6ea31f1af885885c3d96199319f45edb4ce Reviewed-on: https://go-review.googlesource.com/c/go/+/460695 Reviewed-by: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Michael Pratt <mpratt@google.com> |
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Austin Clements
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d9f23cfe78 |
runtime/pprof: improve output of TestLabelSystemstack
The current output of TestLabelSystemstack is a bit cryptic. This CL improves various messages and hopefully simplifies the logic in the test. Simplifying the logic leads to three changes in possible outcomes, which I verified by running the logic before and after this change through all 2^4 possibilities (https://go.dev/play/p/bnfb-OQCT4j): 1. If a sample both must be labeled and must not be labeled, the test now reports that explicitly rather than giving other confusing output. 2. If a sample must not be labeled but is, the current logic will print two identical error messages. The new logic prints only one. 3. If the test finds no frames at all that it recognizes, but the sample is labeled, it will currently print a confusing "Sample labeled got true want false" message. The new logic prints nothing. We've seen this triggered by empty stacks in profiles. Fixes #51550. This bug was caused by case 3 above, where it was triggered by a profile label on an empty stack. It's valid for empty stacks to appear in a profile if we sample a goroutine just as it's exiting (and that goroutine may have a profile label), so the test shouldn't fail in this case. Change-Id: I1593ec4ac33eced5bb89572a3ba7623e56f2fb3d Reviewed-on: https://go-review.googlesource.com/c/go/+/460516 Run-TryBot: Austin Clements <austin@google.com> Reviewed-by: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com> Reviewed-by: Michael Pratt <mpratt@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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Cherry Mui
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1ba7341cb2 |
cmd/link, runtime: use a different section for Go libfuzzer counters
Currently in libfuzzer mode, we put our counters in section __sancov_cntrs. When linking with C/C++ code that also has fuzzer counters, apparently the C linker combines our counters and their counters and registers them together. But in the Go runtime we also have code to register our counters. So the Go counters ended up registered twice, causing problems. Since we already have code to register our counters, put them in a Go-specific section so it won't be combined with the C counters. Fixes #57449. Change-Id: If3d41735124e7e301572d4b7aecf7d057ac134c0 Reviewed-on: https://go-review.googlesource.com/c/go/+/459055 Reviewed-by: Nicolas Hillegeer <aktau@google.com> Reviewed-by: Than McIntosh <thanm@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Cherry Mui <cherryyz@google.com> |
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Russ Cox
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6c9b661867 |
runtime: revert Apple libc atfork workaround
Revert CL 451735 (
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Cherry Mui
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de6abd7889 |
runtime/internal/startlinetest: work around shared buildmode linking issue
The runtime/internal/startlinetest package contains a call to a function defined in runtime_test. Generally this is fine as this package is only linked in for runtime_test. Except that for "go install -buildmode=shared std", which include all packages in std, including this test-only internal package. In this mode, the caller is included in the linking but the callee is not, causing linking error. Work around it by calling runtime_test.callerStartLine via a function pointer. The function pointer is only set in runtime_test. In the shared std build, the function pointer will not be set, and this is fine. Fixes #57334. Change-Id: I7d871c50ce6599c6ea2802cf6e14bb749deab220 Reviewed-on: https://go-review.googlesource.com/c/go/+/458696 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Cherry Mui <cherryyz@google.com> |
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Cherry Mui
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18baca6765 |
runtime/race: add build tag to internal amd64vN packages
Only one of the runtime/race/internal/amd64vN packages should be included in a build. Generally this is true because the runtime/race package would import only one of them depending on the build configuration. But for "go install -buildmode=shared std" it includes all Go packages in std, which includes both, which then causes link-time failure due to duplicated symbols. To avoid this, we add build tags to the internal packages, so, depending on the build configuation, only one package would contain buildable go files therefore be included in the build. For #57334. Change-Id: I52ddc3a40e16c7d04b4dd861e9689918d27e8509 Reviewed-on: https://go-review.googlesource.com/c/go/+/458695 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Cherry Mui <cherryyz@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> |
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Than McIntosh
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fadd77c05b |
runtime/coverage: add missing file close in test support helper
The processPod() helper (invoked by processCoverTestDir, which is in turn called by _testmain.go) was opening and reading counter data files, but never closing them. Add a call to close the files after they have been read. Fixes #57407. Change-Id: If9a489f92e4bab72c5b2df8697e14420a6f7b8f5 Reviewed-on: https://go-review.googlesource.com/c/go/+/458835 Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Than McIntosh <thanm@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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Guoqi Chen
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0b2ad1d815 |
cmd/compile: sign-extend the 2nd argument of the LoweredAtomicCas32 on loong64,mips64x,riscv64
The function LoweredAtomicCas32 is implemented using the LL-SC instruction pair
on loong64, mips64x, riscv64. However,the LL instruction on loong64, mips64x,
riscv64 is sign-extended, so it is necessary to sign-extend the 2nd parameter
"old" of the LoweredAtomicCas32, so that the instruction BNE after LL can get
the desired result.
The function prototype of LoweredAtomicCas32 in golang:
func Cas32(ptr *uint32, old, new uint32) bool
When using an intrinsify implementation:
case 1: (*ptr) <= 0x80000000 && old < 0x80000000
E.g: (*ptr) = 0x7FFFFFFF, old = Rarg1= 0x7FFFFFFF
After run the instruction "LL (Rarg0), Rtmp": Rtmp = 0x7FFFFFFF
Rtmp ! = Rarg1(old) is false, the result we expect
case 2: (*ptr) >= 0x80000000 && old >= 0x80000000
E.g: (*ptr) = 0x80000000, old = Rarg1= 0x80000000
After run the instruction "LL (Rarg0), Rtmp": Rtmp = 0xFFFFFFFF_80000000
Rtmp ! = Rarg1(old) is true, which we do not expect
When using an non-intrinsify implementation:
Because Rarg1 is loaded from the stack using sign-extended instructions
ld.w, the situation described in Case 2 above does not occur
Benchmarks on linux/loong64:
name old time/op new time/op delta
Cas 50.0ns ± 0% 50.1ns ± 0% ~ (p=1.000 n=1+1)
Cas64 50.0ns ± 0% 50.1ns ± 0% ~ (p=1.000 n=1+1)
Cas-4 56.0ns ± 0% 56.0ns ± 0% ~ (p=1.000 n=1+1)
Cas64-4 56.0ns ± 0% 56.0ns ± 0% ~ (p=1.000 n=1+1)
Benchmarks on Loongson 3A4000 (GOARCH=mips64le, 1.8GHz)
name old time/op new time/op delta
Cas 70.4ns ± 0% 70.3ns ± 0% ~ (p=1.000 n=1+1)
Cas64 70.7ns ± 0% 70.6ns ± 0% ~ (p=1.000 n=1+1)
Cas-4 81.1ns ± 0% 80.8ns ± 0% ~ (p=1.000 n=1+1)
Cas64-4 80.9ns ± 0% 80.9ns ± 0% ~ (p=1.000 n=1+1)
Fixes #57282
Change-Id: I190a7fc648023b15fa392f7fdda5ac18c1561bac
Reviewed-on: https://go-review.googlesource.com/c/go/+/457135
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: David Chase <drchase@google.com>
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Oleg Zaytsev
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61e2b8ec59 |
cmd/gc: test temp string comparison with all ops
The comment on `slicebytetostringtmp` mention that `==` operator does not allocate []byte to string conversion, but the test was testing only `==` and `!=` and the compiler actually optimizes all comparison operators. Also added a test for concatenation comparison, which also should not allocate. Change-Id: I6f4c5c4f238808138fa901732e1fd5b6ab25f725 Reviewed-on: https://go-review.googlesource.com/c/go/+/456415 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Than McIntosh <thanm@google.com> Auto-Submit: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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Than McIntosh
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7973b0e508 |
cmd/{go,cover,covdata}: fix 'package main' inconsistent handling
Fix a buglet in cmd/cover in how we handle package name/path for the "go build -o foo.exe *.go" and "go run *.go" cases. The go command assigns a dummy import path of "command-line-arguments" to the main package built in these cases; rather than expose this dummy to the user in coverage reports, the cover tool had a special case hack intended to rewrite such package paths to "main". The hack was too general, however, and was rewriting the import path of all packages with (p.name == "main") to an import path of "main". The hack also produced unexpected results for cases such as go test -cover foo.go foo_test.go This patch removes the hack entirely, leaving the package path for such cases as "command-line-arguments". Fixes #57169. Change-Id: Ib6071db5e3485da3b8c26e16ef57f6fa1712402c Reviewed-on: https://go-review.googlesource.com/c/go/+/456237 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Than McIntosh <thanm@google.com> Reviewed-by: Bryan Mills <bcmills@google.com> |
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Bryan C. Mills
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eaf0e3d465 |
runtime: remove arbitrary timeouts in finalizer tests
These short timeouts can overrun due to system scheduling delay (or GC latency) on a slow or heavily-loaded host. Moreover, if the test deadlocks we will probably want to know what the GC goroutines were doing at the time. With an arbitrary timeout, we never get that information; however, if we allow the test to time out completely we will get a goroutine dump (and, if GOTRACEBACK is configured in the environment, that may even include GC goroutines). Fixes #57166. Change-Id: I136501883373c3ce4e250dc8340c60876b375f44 Reviewed-on: https://go-review.googlesource.com/c/go/+/456118 Auto-Submit: Bryan Mills <bcmills@google.com> Run-TryBot: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com> |
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Cherry Mui
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e535d6776c |
Revert "runtime/pprof: unskip TestTimeVDSO on Android"
This reverts CL 455358, commit
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Cherry Mui
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98da0fb43f |
runtime/pprof: unskip TestTimeVDSO on Android
It is possible that CL 455166 fixes this. Try unskipping the test and see. If it fails again we can skip it again. Fixes #48655. Change-Id: Ia81b06cb7608f74adb276bc018e8fc840285bc11 Reviewed-on: https://go-review.googlesource.com/c/go/+/455358 Reviewed-by: Michael Pratt <mpratt@google.com> Run-TryBot: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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Cherry Mui
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185e1a7b27 |
runtime: prioritize VDSO and libcall unwinding in profiler
In the profiler, when unwinding the stack, we have special handling for VDSO calls. Currently, the special handling is only used when the normal unwinding fails. If the signal lands in the function that makes the VDSO call (e.g. nanotime1) and after the stack switch, the normal unwinding doesn't fail but gets a stack trace with exactly one frame (the nanotime1 frame). The stack trace stops because of the stack switch. This 1-frame stack trace is not as helpful. Instead, if vdsoSP is set, we know we are in VDSO call or right before or after it, so use vdsoPC and vdsoSP for unwinding. Do the same for libcall. Also remove _TraceTrap for VDSO unwinding, as vdsoPC and vdsoSP correspond to a call, not an interrupted instruction. Fixes #56574. Change-Id: I799aa7644d0c1e2715ab038a9eef49481dd3a7f5 Reviewed-on: https://go-review.googlesource.com/c/go/+/455166 Run-TryBot: Cherry Mui <cherryyz@google.com> Reviewed-by: Michael Pratt <mpratt@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> |
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Cherry Mui
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2986358969 |
runtime/cgo: fix typo in gcc_loong64.S
Fix typo in CL 454838. Change-Id: I0e91d22cf09949f0bf924ebcf09f1ddac525bac4 Reviewed-on: https://go-review.googlesource.com/c/go/+/455161 Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org> Run-TryBot: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> |
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Cherry Mui
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ad55b878e7 |
runtime/cgo: add .file directive to GNU assembly files
Without it, at least on ARM64 with older BFD linker, it will include the file of the object file (which is of a temporary path) as a debug symbol into the binary, causing the build to be nondeterministic. Adding a .file directive makes it to create a STT_FILE symbol with deterministic input, and prevent the linker creating one using the temporary object file path. Fixes #57035. Change-Id: I3ab716b240f60f7a891af2f7e10b467df67d1f31 Reviewed-on: https://go-review.googlesource.com/c/go/+/454838 Reviewed-by: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Cherry Mui <cherryyz@google.com> |
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Russ Cox
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c0497d1a81 |
runtime/debug: add missing period
Pointed out in review of CL 453602, but it looks like I forgot to re-upload before submitting. Change-Id: I8f4fac52ea0f904f6f9b06e13fc8ed2e778f2360 Reviewed-on: https://go-review.googlesource.com/c/go/+/454835 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> Auto-Submit: Russ Cox <rsc@golang.org> Reviewed-by: Julie Qiu <julieqiu@google.com> |