30eda6715c
This CL removes the RC4 assembler implementations. RC4 is broken and should not be used for encryption anymore. Therefore it's not worth maintaining platform-specific assembler implementations. The native Go implementation may be slower or faster depending on the CPU: name old time/op new time/op delta RC4_128-4 256ns ± 0% 196ns ± 0% -23.78% (p=0.029 n=4+4) RC4_1K-4 2.38µs ± 0% 1.54µs ± 0% -35.22% (p=0.029 n=4+4) RC4_8K-4 19.4µs ± 1% 12.0µs ± 0% -38.35% (p=0.029 n=4+4) name old speed new speed delta RC4_128-4 498MB/s ± 0% 654MB/s ± 0% +31.12% (p=0.029 n=4+4) RC4_1K-4 431MB/s ± 0% 665MB/s ± 0% +54.34% (p=0.029 n=4+4) RC4_8K-4 418MB/s ± 1% 677MB/s ± 0% +62.18% (p=0.029 n=4+4) vendor_id : GenuineIntel cpu family : 6 model : 142 model name : Intel(R) Core(TM) i5-7Y54 CPU @ 1.20GHz stepping : 9 microcode : 0x84 cpu MHz : 800.036 cache size : 4096 KB name old time/op new time/op delta RC4_128-4 235ns ± 1% 431ns ± 0% +83.00% (p=0.000 n=10+10) RC4_1K-4 1.74µs ± 0% 3.41µs ± 0% +96.74% (p=0.000 n=10+10) RC4_8K-4 13.6µs ± 1% 26.8µs ± 0% +97.58% (p=0.000 n=10+9) name old speed new speed delta RC4_128-4 543MB/s ± 0% 297MB/s ± 1% -45.29% (p=0.000 n=10+10) RC4_1K-4 590MB/s ± 0% 300MB/s ± 0% -49.16% (p=0.000 n=10+10) RC4_8K-4 596MB/s ± 1% 302MB/s ± 0% -49.39% (p=0.000 n=10+9) vendor_id : GenuineIntel cpu family : 6 model : 63 model name : Intel(R) Xeon(R) CPU @ 2.30GHz stepping : 0 microcode : 0x1 cpu MHz : 2300.000 cache size : 46080 KB Fixes #25417 Change-Id: I4124037154aaaa8e48d300c23974f125b6055a1c Reviewed-on: https://go-review.googlesource.com/130397 Run-TryBot: Filippo Valsorda <filippo@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Filippo Valsorda <filippo@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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README.md
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