| commit | 7a4a64e8f3dc14717695e53c7560992789f8bc9e | [log] [tgz] |
|---|---|---|
| author | Keith Randall <khr@golang.org> | Wed Dec 10 14:20:17 2014 -0800 |
| committer | Keith Randall <khr@golang.org> | Thu Dec 11 05:23:00 2014 +0000 |
| tree | 2cb7a680b5280f9b698f892f7da3a3a135b095cc | |
| parent | 69f24cfa14ba982e0118e240021f0e91f8efe937 [diff] |
runtime: faster aeshash implementation The aesenc instruction has high latency. For hashing large objects, hash several streams in parallel. benchmark old ns/op new ns/op delta BenchmarkHash5 7.02 7.45 +6.13% BenchmarkHash16 6.53 6.94 +6.28% BenchmarkHash32 8.38 8.26 -1.43% BenchmarkHash64 12.6 12.0 -4.76% BenchmarkHash1024 247 62.9 -74.53% BenchmarkHash65536 17335 2966 -82.89% BenchmarkHashInt32Speed 14.7 14.9 +1.36% BenchmarkHashInt64Speed 14.6 14.9 +2.05% BenchmarkHashBytesSpeed 35.4 28.6 -19.21% BenchmarkHashStringSpeed 22.0 20.4 -7.27% BenchmarkHashStringArraySpeed 65.8 56.3 -14.44% Change-Id: Ia8ba03063acc64a9066b8ab2d79f2c9aaac1770f Reviewed-on: https://go-review.googlesource.com/1330 Reviewed-by: Russ Cox <rsc@golang.org>
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