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The Go programming language
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d2ab2b9f42
Go to file
Dmitriy Vyukov d2ab2b9f42 sync: improve Once fast path 
Use atomic.LoadUint32(&done) instead of
atomic.AddInt32(&done, 0) on fast path.

benchmark            old ns/op    new ns/op    delta
BenchmarkOnce            13.40         7.26  -45.82%
BenchmarkOnce-2          22.90         4.04  -82.36%
BenchmarkOnce-4          25.60         2.16  -91.56%
BenchmarkOnce-8          25.80         1.38  -94.65%
BenchmarkOnce-16         24.40         1.33  -94.55%

(on HP Z600, 2 x Intel Xeon E5620, 8 HT cores, 2.4 GHz)

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4787041
2011-07-21 11:30:14 -04:00
doc weekly.2011-07-19 2011-07-20 15:45:55 +10:00
include build: fix header files for Plan 9 2011-06-14 14:14:11 -04:00
lib godoc: implement http.FileSystem for zip files 2011-07-19 08:22:20 -07:00
misc gobuilder: goinstall with -dashboard=false instead of -log=false 2011-07-20 16:07:40 +10:00
src sync: improve Once fast path 2011-07-21 11:30:14 -04:00
test runtime: fix select pass 3 2011-07-18 16:15:01 -04:00
.hgignore go/build: exclude cgo test from arm 2011-06-06 09:25:30 +10:00
.hgtags tag weekly.2011-07-19 2011-07-20 15:48:36 +10:00
AUTHORS A+C: Matthew Horsnell (individual CLA) 2011-07-13 12:33:03 -07:00
CONTRIBUTORS CONTRIBUTORS: add Mike Solomon (Google CLA) 2011-07-20 13:30:46 -07:00
favicon.ico add a favicon plus a couple of hi-res versions of gordon 2009-10-26 10:13:07 -07:00
LICENSE LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README build: update, streamline documentation for new $GOBIN 2010-08-24 20:00:50 -04:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

README 

This is the source code repository for the Go programming language.  

For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install.html in your web browser.

After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.

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

--

Binary Distribution Notes

If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README).  You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.

For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:

    export GOROOT=$HOME/go
    export PATH=$PATH:$GOROOT/bin

See doc/install.html for more details.