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| author | Josh Bleecher Snyder <josharian@gmail.com> | 2017-08-21 08:45:57 -0700 |
|---|---|---|
| committer | Josh Bleecher Snyder <josharian@gmail.com> | 2017-08-23 13:47:14 +0000 |
| commit | dad5d76e8fff6370f73748c7237b64bda0af13bd (patch) | |
| tree | fc925189b51a05f120f98f5ccfff9d5b0ff06bad /src/syscall/exec_linux.go | |
| parent | 15d5fa0291119f195d2d9b9827b650d0e98b85a3 (diff) | |
| download | go-dad5d76e8fff6370f73748c7237b64bda0af13bd.tar.xz | |
runtime: strength reduce key pointer calculations in mapaccess*_fast*
While we're here, check string length before checking b.tophash.
name old time/op new time/op delta
MapStringKeysEight_16-8 11.4ns ±10% 7.0ns ± 2% -38.27% (p=0.000 n=29+28)
MapStringKeysEight_32-8 10.9ns ± 2% 6.3ns ± 3% -41.89% (p=0.000 n=26+30)
MapStringKeysEight_64-8 10.8ns ± 3% 6.3ns ± 2% -41.52% (p=0.000 n=28+27)
MapStringKeysEight_1M-8 10.9ns ± 4% 6.3ns ± 2% -41.91% (p=0.000 n=29+29)
IntMap-8 7.05ns ± 4% 6.77ns ± 3% -3.94% (p=0.000 n=29+30)
Change-Id: I0f3dc3301bdf550e4ac5250e1e64e7f2a0ffb269
Reviewed-on: https://go-review.googlesource.com/57590
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/syscall/exec_linux.go')
0 files changed, 0 insertions, 0 deletions