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| author | Xiaolin Zhao <zhaoxiaolin@loongson.cn> | 2024-06-03 11:45:04 +0800 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2024-09-11 22:34:54 +0000 |
| commit | 50e536daa18a57d29ece6209320fff5a837a749c (patch) | |
| tree | 2e5dd7a31f568ea1d3d710b732cd53bcf3c896b0 /src/syscall/exec_linux.go | |
| parent | 547baafa371672c11c550e8170a7ff2aa65e9954 (diff) | |
| download | go-50e536daa18a57d29ece6209320fff5a837a749c.tar.xz | |
src/internal/bytealg: optimize the function Compare on loong64
The relevant performance improved by 66.73%.
benchmark:
goos: linux
goarch: loong64
pkg: bytes
cpu: Loongson-3A6000 @ 2500.00MHz
│ old │ new │
│ sec/op │ sec/op vs base │
BytesCompare/1 5.603n ± 0% 4.002n ± 0% -28.57% (p=0.000 n=20)
BytesCompare/2 6.405n ± 0% 4.002n ± 0% -37.52% (p=0.000 n=20)
BytesCompare/4 8.007n ± 0% 4.002n ± 0% -50.02% (p=0.000 n=20)
BytesCompare/8 11.210n ± 0% 4.002n ± 0% -64.30% (p=0.000 n=20)
BytesCompare/16 6.005n ± 0% 4.802n ± 0% -20.03% (p=0.000 n=20)
BytesCompare/32 6.806n ± 0% 4.402n ± 0% -35.32% (p=0.000 n=20)
BytesCompare/64 8.407n ± 0% 6.003n ± 0% -28.60% (p=0.000 n=20)
BytesCompare/128 11.610n ± 0% 8.404n ± 0% -27.61% (p=0.000 n=20)
BytesCompare/256 18.02n ± 0% 14.01n ± 0% -22.25% (p=0.000 n=20)
BytesCompare/512 31.23n ± 0% 26.98n ± 0% -13.61% (p=0.000 n=20)
BytesCompare/1024 56.85n ± 0% 52.43n ± 0% -7.77% (p=0.000 n=20)
BytesCompare/2048 108.1n ± 0% 103.8n ± 0% -3.98% (p=0.000 n=20)
CompareBytesEqual 15.610n ± 0% 5.203n ± 0% -66.67% (p=0.000 n=20)
CompareBytesToNil 3.203n ± 0% 3.202n ± 0% -0.03% (p=0.000 n=20)
CompareBytesEmpty 3.203n ± 0% 2.423n ± 0% -24.35% (p=0.000 n=20)
CompareBytesIdentical 3.203n ± 0% 2.424n ± 0% -24.32% (p=0.000 n=20)
CompareBytesSameLength 8.407n ± 0% 8.004n ± 0% -4.79% (p=0.000 n=20)
CompareBytesDifferentLength 8.808n ± 0% 7.604n ± 0% -13.67% (p=0.000 n=20)
CompareBytesBigUnaligned/offset=1 839.85µ ± 0% 82.04µ ± 0% -90.23% (p=0.000 n=20)
CompareBytesBigUnaligned/offset=2 839.86µ ± 0% 82.03µ ± 0% -90.23% (p=0.000 n=20)
CompareBytesBigUnaligned/offset=3 839.86µ ± 0% 82.03µ ± 0% -90.23% (p=0.000 n=20)
CompareBytesBigUnaligned/offset=4 839.86µ ± 0% 82.03µ ± 0% -90.23% (p=0.000 n=20)
CompareBytesBigUnaligned/offset=5 839.85µ ± 0% 82.04µ ± 0% -90.23% (p=0.000 n=20)
CompareBytesBigUnaligned/offset=6 839.85µ ± 0% 82.03µ ± 0% -90.23% (p=0.000 n=20)
CompareBytesBigUnaligned/offset=7 839.85µ ± 0% 82.03µ ± 0% -90.23% (p=0.000 n=20)
CompareBytesBigBothUnaligned/offset=0 78.77µ ± 0% 78.75µ ± 0% -0.03% (p=0.000 n=20)
CompareBytesBigBothUnaligned/offset=1 839.84µ ± 0% 85.31µ ± 0% -89.84% (p=0.000 n=20)
CompareBytesBigBothUnaligned/offset=2 839.84µ ± 0% 85.31µ ± 0% -89.84% (p=0.000 n=20)
CompareBytesBigBothUnaligned/offset=3 839.85µ ± 0% 85.31µ ± 0% -89.84% (p=0.000 n=20)
CompareBytesBigBothUnaligned/offset=4 839.83µ ± 0% 85.31µ ± 0% -89.84% (p=0.000 n=20)
CompareBytesBigBothUnaligned/offset=5 839.85µ ± 0% 85.31µ ± 0% -89.84% (p=0.000 n=20)
CompareBytesBigBothUnaligned/offset=6 839.85µ ± 0% 85.31µ ± 0% -89.84% (p=0.000 n=20)
CompareBytesBigBothUnaligned/offset=7 839.84µ ± 0% 85.31µ ± 0% -89.84% (p=0.000 n=20)
CompareBytesBig 78.77µ ± 0% 78.75µ ± 0% -0.03% (p=0.001 n=20)
CompareBytesBigIdentical 2.802n ± 0% 2.801n ± 0% -0.04% (p=0.001 n=20)
geomean 1.524µ 507.2n -66.73%
Change-Id: Ice9f4ef0ce0fbb5a6424823c5f8e0c0c369fd159
Reviewed-on: https://go-review.googlesource.com/c/go/+/589538
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Auto-Submit: Tim King <taking@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Diffstat (limited to 'src/syscall/exec_linux.go')
0 files changed, 0 insertions, 0 deletions