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| author | Daniel Martí <mvdan@mvdan.cc> | 2018-11-25 23:22:11 +0000 |
|---|---|---|
| committer | Daniel Martí <mvdan@mvdan.cc> | 2019-03-02 16:48:05 +0000 |
| commit | aa5165d62cf623230dd820afe2bdba92bd15beeb (patch) | |
| tree | 0da71b97d631fb7d5886b88bb8b2833d32954478 /src/os/exec/exec.go | |
| parent | 337a1bde026f227fa9536653cc51efa13970657a (diff) | |
| download | go-aa5165d62cf623230dd820afe2bdba92bd15beeb.tar.xz | |
encoding/hex: simplify decoder arithmetic
Remove all multiplications and divisions from the main decoding loop.
name old time/op new time/op delta
Decode/256-8 323ns ± 0% 293ns ± 0% -9.29% (p=0.000 n=5+4)
Decode/1024-8 1.26µs ± 0% 1.14µs ± 0% -9.48% (p=0.000 n=6+5)
Decode/4096-8 4.99µs ± 0% 4.51µs ± 0% -9.55% (p=0.002 n=6+6)
Decode/16384-8 20.0µs ± 0% 18.1µs ± 0% -9.54% (p=0.002 n=6+6)
name old speed new speed delta
Decode/256-8 791MB/s ± 0% 872MB/s ± 0% +10.34% (p=0.002 n=6+6)
Decode/1024-8 814MB/s ± 0% 899MB/s ± 0% +10.48% (p=0.004 n=6+5)
Decode/4096-8 821MB/s ± 0% 908MB/s ± 0% +10.55% (p=0.002 n=6+6)
Decode/16384-8 821MB/s ± 0% 908MB/s ± 0% +10.54% (p=0.002 n=6+6)
Change-Id: Ie9f91242ce04c130a77c1184379e3b9de38fe713
Reviewed-on: https://go-review.googlesource.com/c/151199
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Diffstat (limited to 'src/os/exec/exec.go')
0 files changed, 0 insertions, 0 deletions