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0d651041a9
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Kir Kolyshkin 0d651041a9 syscall: optimize Byte{Ptr,Slice}FromString 
Use bytealg.IndexByteString(str, 0) instead of looping through the
string to check for a zero byte. A quick and dirty benchmark shows 10x
performance improvement (on amd64 machine, using go 1.17.3).

BytePtrFromString is used by many functions with string arguments.
This change should make many functions in os package, such as those
accepting a filename (os.Open, os.Stat, etc.), a tad faster.

PS I am aware that syscall package is deprecated and frozen, but this
change is mainly for the os package and the likes. The alternative
would be for os to switch to x/sys, which is a much bigger change.

Change-Id: I18fdd50f9fbfe0a23a4a71bc4bd0a5f5b0eaa475
Reviewed-on: https://go-review.googlesource.com/c/go/+/368457
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-03-28 16:55:57 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api encoding/xml: expose decoder line and column 2022-03-27 20:26:46 +00:00
doc spec: various minor clarifications 2022-03-11 06:00:18 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc cmd/compile: set conversions to unsafe.Pointer as an escaping operation when -asan is enabled 2022-03-17 08:43:51 +00:00
src syscall: optimize Byte{Ptr,Slice}FromString 2022-03-28 16:55:57 +00:00
test test: fix inline test on noopt builder 2022-03-27 18:38:56 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: change email of Ben Shi (individual CLA) 2022-03-22 16:02:31 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: change email of Ben Shi (individual CLA) 2022-03-22 16:02:31 +00:00
LICENSE
PATENTS
README.md README.md: update links to go.dev 2022-03-20 16:05:03 +00:00
SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

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After downloading a binary release, visit https://go.dev/doc/install for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://go.dev/doc/install/source for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.