| commit | a1b1ba7daf4d612cb08e98567d809a6f202498ce | [log] [tgz] |
|---|---|---|
| author | Meng Zhuo <mengzhuo1203@gmail.com> | Wed Oct 02 16:06:25 2019 +0800 |
| committer | Cherry Zhang <cherryyz@google.com> | Thu Oct 03 20:32:21 2019 +0000 |
| tree | d3f4315d4635db8863e5b04bd54dc0f0d93e846b | |
| parent | 2bf7a925712dca5646f9215cda17c5b61eea14ce [diff] |
internal/bytealg: (re)adding mips64x compare implementation The original CL of mips64x compare function has been reverted due to wrong implement for little endian. Original CL: https://go-review.googlesource.com/c/go/+/196837 name old time/op new time/op delta BytesCompare/1 28.9ns ± 4% 22.1ns ± 0% -23.60% (p=0.000 n=9+8) BytesCompare/2 34.6ns ± 0% 23.1ns ± 0% -33.25% (p=0.000 n=8+10) BytesCompare/4 54.6ns ± 0% 40.8ns ± 0% -25.27% (p=0.000 n=8+8) BytesCompare/8 73.9ns ± 0% 49.1ns ± 0% -33.56% (p=0.000 n=8+8) BytesCompare/16 113ns ± 0% 24ns ± 0% -79.20% (p=0.000 n=9+9) BytesCompare/32 190ns ± 0% 26ns ± 0% -86.53% (p=0.000 n=10+10) BytesCompare/64 345ns ± 0% 44ns ± 0% -87.19% (p=0.000 n=10+8) BytesCompare/128 654ns ± 0% 52ns ± 0% -91.97% (p=0.000 n=9+8) BytesCompare/256 1.27µs ± 0% 0.07µs ± 0% -94.14% (p=0.001 n=8+9) BytesCompare/512 2.51µs ± 0% 0.12µs ± 0% -95.26% (p=0.000 n=9+10) BytesCompare/1024 4.99µs ± 0% 0.21µs ± 0% -95.85% (p=0.000 n=8+10) BytesCompare/2048 9.94µs ± 0% 0.38µs ± 0% -96.14% (p=0.000 n=8+8) CompareBytesEqual 105ns ± 0% 64ns ± 0% -39.43% (p=0.000 n=10+9) CompareBytesToNil 34.8ns ± 1% 38.6ns ± 3% +11.01% (p=0.000 n=10+10) CompareBytesEmpty 33.6ns ± 3% 36.6ns ± 0% +8.77% (p=0.000 n=10+8) CompareBytesIdentical 29.7ns ± 0% 40.5ns ± 1% +36.45% (p=0.000 n=10+8) CompareBytesSameLength 69.1ns ± 0% 51.8ns ± 0% -25.04% (p=0.000 n=10+9) CompareBytesDifferentLength 69.8ns ± 0% 52.5ns ± 0% -24.79% (p=0.000 n=10+8) CompareBytesBigUnaligned 5.15ms ± 0% 2.19ms ± 0% -57.59% (p=0.000 n=9+9) CompareBytesBig 5.28ms ± 0% 0.28ms ± 0% -94.64% (p=0.000 n=8+8) CompareBytesBigIdentical 29.7ns ± 0% 36.9ns ± 2% +24.11% (p=0.000 n=8+10) name old speed new speed delta CompareBytesBigUnaligned 204MB/s ± 0% 480MB/s ± 0% +135.77% (p=0.000 n=9+9) CompareBytesBig 198MB/s ± 0% 3704MB/s ± 0% +1765.97% (p=0.000 n=8+8) CompareBytesBigIdentical 35.3TB/s ± 0% 28.4TB/s ± 2% -19.44% (p=0.000 n=8+10) Fixes #34549 Change-Id: I2ef29f13cdd4229745ac2d018bb53c76f2ff1209 Reviewed-on: https://go-review.googlesource.com/c/go/+/197557 Reviewed-by: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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