diff options
| author | Archana R <aravind5@in.ibm.com> | 2021-10-13 03:50:06 -0500 |
|---|---|---|
| committer | Lynn Boger <laboger@linux.vnet.ibm.com> | 2021-10-19 18:22:59 +0000 |
| commit | 6c3cd5d2eb7149c9c1ced7d70c3f4157f27c1588 (patch) | |
| tree | 64ef7d5438d1d9e5fd2a8a4464e8fbae0194f0d7 /src/errors | |
| parent | ad7db1f90fb66f00f5b020360aabd9f27d1c764f (diff) | |
| download | go-6c3cd5d2eb7149c9c1ced7d70c3f4157f27c1588.tar.xz | |
internal/bytealg: port bytes.Index and bytes.Count to reg ABI on ppc64x
This change adds support for the reg ABI to the Index and Count
functions for ppc64/ppc64le.
Most Index and Count benchmarks show improvement in performance on
POWER9 with this change. Similar numbers observed on POWER8 and POWER10.
name old time/op new time/op delta
Index/32 71.0ns ± 0% 67.9ns ± 0% -4.42% (p=0.001 n=7+6)
IndexEasy/10 17.5ns ± 0% 17.2ns ± 0% -1.30% (p=0.001 n=7+7)
name old time/op new time/op delta
Count/10 26.6ns ± 0% 25.0ns ± 1% -6.02% (p=0.001 n=7+7)
Count/32 78.6ns ± 0% 74.7ns ± 0% -4.97% (p=0.001 n=7+7)
Count/4K 5.03µs ± 0% 5.03µs ± 0% -0.07% (p=0.000 n=6+7)
CountEasy/10 26.9ns ± 0% 25.2ns ± 1% -6.31% (p=0.001 n=7+7)
CountSingle/32 11.8ns ± 0% 9.9ns ± 0% -15.70% (p=0.002 n=6+6)
Change-Id: Ibd146c04f8107291c55f9e6100b8264dfccc41ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/355509
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Diffstat (limited to 'src/errors')
0 files changed, 0 insertions, 0 deletions