Adds an assembly implementation of sha512.block for ppc64le to improve its performance. This implementation is largely based on the original amd64 implementation, unrolling the 80 iterations of the inner loop. Fixes #17660 benchmark old ns/op new ns/op delta BenchmarkHash8Bytes 1715 1133 -33.94% BenchmarkHash1K 10098 5513 -45.41% BenchmarkHash8K 68004 35278 -48.12% benchmark old MB/s new MB/s speedup BenchmarkHash8Bytes 4.66 7.06 1.52x BenchmarkHash1K 101.40 185.72 1.83x BenchmarkHash8K 120.46 232.21 1.93x Change-Id: Ifd55a49a24cb159b3a09a8e928c3f37727aca103 Reviewed-on: https://go-review.googlesource.com/32320 Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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README.md
The Go Programming Language
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Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See https://golang.org/doc/install or doc/install.html for more details.
