d88560afd3
Using utf16.AppendRune instead of utf16.Encode safe a bunch of allocations across the board, as many higher level functions use it to call Windows syscalls, for example to `os` package: name old alloc/op new alloc/op delta Readdirname-12 15.6kB ± 0% 15.6kB ± 0% +0.26% (p=0.008 n=5+5) Readdir-12 29.4kB ± 0% 29.4kB ± 0% +0.14% (p=0.008 n=5+5) ReadDir-12 29.4kB ± 0% 29.4kB ± 0% +0.14% (p=0.016 n=4+5) StatDot-12 552B ± 0% 560B ± 0% +1.45% (p=0.008 n=5+5) StatFile-12 512B ± 0% 336B ± 0% -34.38% (p=0.008 n=5+5) StatDir-12 432B ± 0% 288B ± 0% -33.33% (p=0.008 n=5+5) LstatDot-12 552B ± 0% 560B ± 0% +1.45% (p=0.008 n=5+5) LstatFile-12 512B ± 0% 336B ± 0% -34.38% (p=0.008 n=5+5) LstatDir-12 432B ± 0% 288B ± 0% -33.33% (p=0.008 n=5+5) StatFile-12 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.008 n=5+5) StatDir-12 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.008 n=5+5) LstatFile-12 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.008 n=5+5) LstatDir-12 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.008 n=5+5) Updates #51786 Change-Id: I0a088cf1a96e9c304da9311bb3895b70443c1637 Reviewed-on: https://go-review.googlesource.com/c/go/+/425054 Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> Run-TryBot: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> |
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