Russ Cox
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2f32138aba
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crypto/sha1: faster amd64, 386 implementations
-- amd64 --
On a MacBookPro10,2 (Core i5):
benchmark old ns/op new ns/op delta
BenchmarkHash8Bytes 785 592 -24.59%
BenchmarkHash1K 8727 3014 -65.46%
BenchmarkHash8K 64926 20723 -68.08%
benchmark old MB/s new MB/s speedup
BenchmarkHash8Bytes 10.19 13.50 1.32x
BenchmarkHash1K 117.34 339.71 2.90x
BenchmarkHash8K 126.17 395.31 3.13x
For comparison, on the same machine, openssl 0.9.8r reports
its sha1 speed as 341 MB/s for 1K and 404 MB/s for 8K.
On an Intel Xeon E5520:
benchmark old ns/op new ns/op delta
BenchmarkHash8Bytes 984 707 -28.15%
BenchmarkHash1K 11141 3466 -68.89%
BenchmarkHash8K 82435 23411 -71.60%
benchmark old MB/s new MB/s speedup
BenchmarkHash8Bytes 8.13 11.31 1.39x
BenchmarkHash1K 91.91 295.36 3.21x
BenchmarkHash8K 99.37 349.91 3.52x
For comparison, on the same machine, openssl 1.0.1 reports
its sha1 speed as 286 MB/s for 1K and 394 MB/s for 8K.
-- 386 --
On a MacBookPro10,2 (Core i5):
benchmark old ns/op new ns/op delta
BenchmarkHash8Bytes 1041 713 -31.51%
BenchmarkHash1K 15612 3382 -78.34%
BenchmarkHash8K 110152 22733 -79.36%
benchmark old MB/s new MB/s speedup
BenchmarkHash8Bytes 7.68 11.21 1.46x
BenchmarkHash1K 65.59 302.76 4.62x
BenchmarkHash8K 74.37 360.36 4.85x
On an Intel Xeon E5520:
benchmark old ns/op new ns/op delta
BenchmarkHash8Bytes 1221 842 -31.04%
BenchmarkHash1K 14643 4137 -71.75%
BenchmarkHash8K 108722 27394 -74.80%
benchmark old MB/s new MB/s speedup
BenchmarkHash8Bytes 6.55 9.49 1.45x
BenchmarkHash1K 69.93 247.51 3.54x
BenchmarkHash8K 75.35 299.04 3.97x
R=agl, dave
CC=golang-dev
https://golang.org/cl/7763049
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2013-03-21 11:32:02 -04:00 |
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