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| author | Andy Pan <panjf2000@gmail.com> | 2020-11-19 19:09:14 +0800 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2021-03-10 03:52:48 +0000 |
| commit | 643d240a11b2d00e1718b02719707af0708e7519 (patch) | |
| tree | 5883c80c4f42f17ea1c924e62f3dd00c88449422 /src/testing | |
| parent | d33e2192a71c33a604af247161ba1d2c1969e4c7 (diff) | |
| download | go-643d240a11b2d00e1718b02719707af0708e7519.tar.xz | |
internal/poll: implement a pipe pool for splice() call
In scenarios where splice() is called, splice() is usually called not just once, but many times,
which means that a lot of pipes will be created and destroyed frequently, costing an amount of system resources
and slowing down performance, thus I suggest that we add a pipe pool for reusing pipes.
Benchmark tests:
goos: linux
goarch: amd64
pkg: internal/poll
cpu: AMD EPYC 7K62 48-Core Processor
name old time/op new time/op delta
SplicePipe-8 1.36µs ± 1% 0.02µs ± 0% -98.57% (p=0.001 n=7+7)
SplicePipeParallel-8 747ns ± 4% 4ns ± 0% -99.41% (p=0.001 n=7+7)
name old alloc/op new alloc/op delta
SplicePipe-8 24.0B ± 0% 0.0B -100.00% (p=0.001 n=7+7)
SplicePipeParallel-8 24.0B ± 0% 0.0B -100.00% (p=0.001 n=7+7)
name old allocs/op new allocs/op delta
SplicePipe-8 1.00 ± 0% 0.00 -100.00% (p=0.001 n=7+7)
SplicePipeParallel-8 1.00 ± 0% 0.00 -100.00% (p=0.001 n=7+7)
Fixes #42740
Change-Id: Idff654b7264342084e089b5ba796c87c380c471b
Reviewed-on: https://go-review.googlesource.com/c/go/+/271537
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Diffstat (limited to 'src/testing')
0 files changed, 0 insertions, 0 deletions