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| author | Albert Nigmatzianov <albertnigma@gmail.com> | 2017-05-22 21:39:38 +0200 |
|---|---|---|
| committer | Brad Fitzpatrick <bradfitz@golang.org> | 2017-05-22 21:59:34 +0000 |
| commit | 4cf19fb5a73a33f838efe21b3baa14167469ac83 (patch) | |
| tree | 755f51a56263f401d2e7c28868d39a9f33241b95 /src/os/exec/exec_test.go | |
| parent | d433de6e86ce08e1b33e5d604080d3f504529006 (diff) | |
| download | go-4cf19fb5a73a33f838efe21b3baa14167469ac83.tar.xz | |
log: Prevent getting time if it's unnecessary
Small performance gain:
name old time/op new time/op delta
Itoa-4 95.4ns ± 4% 95.6ns ± 3% ~ (p=0.256 n=45+46)
Println-4 480ns ± 4% 476ns ± 5% -0.87% (p=0.003 n=45+45)
PrintlnNoFlags-4 316ns ± 3% 299ns ± 4% -5.38% (p=0.000 n=42+44)
name old alloc/op new alloc/op delta
Itoa-4 0.00B 0.00B ~ (all equal)
Println-4 21.0B ± 0% 21.0B ± 0% ~ (all equal)
PrintlnNoFlags-4 21.0B ± 0% 21.0B ± 0% ~ (all equal)
name old allocs/op new allocs/op delta
Itoa-4 0.00 0.00 ~ (all equal)
Println-4 2.00 ± 0% 2.00 ± 0% ~ (all equal)
PrintlnNoFlags-4 2.00 ± 0% 2.00 ± 0% ~ (all equal)
Change-Id: Idcd03609a5a437a69ffa7004a673bf0b8d22e7ad
Reviewed-on: https://go-review.googlesource.com/38056
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Diffstat (limited to 'src/os/exec/exec_test.go')
0 files changed, 0 insertions, 0 deletions