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| author | Carlo Alberto Ferraris <cafxx@strayorange.com> | 2019-08-24 20:42:41 +0900 |
|---|---|---|
| committer | Brad Fitzpatrick <bradfitz@golang.org> | 2019-09-30 15:43:34 +0000 |
| commit | 5f1aeaeb77b36b92305b54acc4bd6a3319dce803 (patch) | |
| tree | 5020ab5d914c9a19a928b8324b6e90e32d869355 /src/syscall/exec_linux_test.go | |
| parent | 60f271358f07647be0de9ee8225b50a391ea5def (diff) | |
| download | go-5f1aeaeb77b36b92305b54acc4bd6a3319dce803.tar.xz | |
math/rand: devirtualize interface call in Read
This allows to inline the common case in which the Source is a
rngSource. On linux/amd64 in a VM:
name old time/op new time/op delta
Read3-4 33.8ns ± 8% 18.5ns ± 8% -45.38% (p=0.000 n=10+10)
Read64-4 371ns ± 8% 70ns ± 7% -81.00% (p=0.000 n=10+10)
Read1000-4 5.33µs ± 5% 0.86µs ± 3% -83.85% (p=0.000 n=9+9)
Change-Id: Ibf47b0e9ecdfe62ffcb66d6a92f191800bdc740e
Reviewed-on: https://go-review.googlesource.com/c/go/+/191539
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'src/syscall/exec_linux_test.go')
0 files changed, 0 insertions, 0 deletions