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Russ Cox authored
-- amd64 -- On a MacBookPro10,2 (Core i5): benchmark old ns/op new ns/op delta BenchmarkHash8Bytes 471 524 +11.25% BenchmarkHash1K 3018 2220 -26.44% BenchmarkHash8K 20634 14604 -29.22% BenchmarkHash8BytesUnaligned 468 523 +11.75% BenchmarkHash1KUnaligned 3006 2212 -26.41% BenchmarkHash8KUnaligned 20820 14652 -29.63% benchmark old MB/s new MB/s speedup BenchmarkHash8Bytes 16.98 15.26 0.90x BenchmarkHash1K 339.26 461.19 1.36x BenchmarkHash8K 397.00 560.92 1.41x BenchmarkHash8BytesUnaligned 17.08 15.27 0.89x BenchmarkHash1KUnaligned 340.65 462.75 1.36x BenchmarkHash8KUnaligned 393.45 559.08 1.42x For comparison, on the same machine, openssl 0.9.8r reports its md5 speed as 350 MB/s for 1K and 410 MB/s for 8K. On an Intel Xeon E5520: benchmark old ns/op new ns/op delta BenchmarkHash8Bytes 565 607 +7.43% BenchmarkHash1K 3753 2475 -34.05% BenchmarkHash8K 25945 16250 -37.37% BenchmarkHash8BytesUnaligned 559 594 +6.26% BenchmarkHash1KUnaligned 3754 2474 -34.10% BenchmarkHash8KUnaligned 26011 16359 -37.11% benchmark old MB/s new MB/s speedup BenchmarkHash8Bytes 14.15 13.17 0.93x BenchmarkHash1K 272.83 413.58 1.52x BenchmarkHash8K 315.74 504.11 1.60x BenchmarkHash8BytesUnaligned 14.31 13.46 0.94x BenchmarkHash1KUnaligned 272.73 413.78 1.52x BenchmarkHash8KUnaligned 314.93 500.73 1.59x For comparison, on the same machine, openssl 1.0.1 reports its md5 speed as 443 MB/s for 1K and 513 MB/s for 8K. -- 386 -- On a MacBookPro10,2 (Core i5): benchmark old ns/op new ns/op delta BenchmarkHash8Bytes 602 670 +11.30% BenchmarkHash1K 4038 2549 -36.87% BenchmarkHash8K 27879 16690 -40.13% BenchmarkHash8BytesUnaligned 602 670 +11.30% BenchmarkHash1KUnaligned 4025 2546 -36.75% BenchmarkHash8KUnaligned 27844 16692 -40.05% benchmark old MB/s new MB/s speedup BenchmarkHash8Bytes 13.28 11.93 0.90x BenchmarkHash1K 253.58 401.69 1.58x BenchmarkHash8K 293.83 490.81 1.67x BenchmarkHash8BytesUnaligned 13.27 11.94 0.90x BenchmarkHash1KUnaligned 254.40 402.05 1.58x BenchmarkHash8KUnaligned 294.21 490.77 1.67x On an Intel Xeon E5520: benchmark old ns/op new ns/op delta BenchmarkHash8Bytes 752 716 -4.79% BenchmarkHash1K 5307 2799 -47.26% BenchmarkHash8K 36993 18042 -51.23% BenchmarkHash8BytesUnaligned 748 730 -2.41% BenchmarkHash1KUnaligned 5301 2795 -47.27% BenchmarkHash8KUnaligned 36983 18085 -51.10% benchmark old MB/s new MB/s speedup BenchmarkHash8Bytes 10.64 11.16 1.05x BenchmarkHash1K 192.93 365.80 1.90x BenchmarkHash8K 221.44 454.03 2.05x BenchmarkHash8BytesUnaligned 10.69 10.95 1.02x BenchmarkHash1KUnaligned 193.15 366.36 1.90x BenchmarkHash8KUnaligned 221.51 452.96 2.04x R=agl CC=golang-dev https://golang.org/cl/7621049
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