mirror
/
go
mirror of https://github.com/golang/go.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
The Go programming language
6,954 Commits 63 Branches 451 Tags 660 MiB
Go 94.3%
Assembly 5.3%
C 0.2%
Shell 0.1%
Go to file
Rob Pike 8bb9e616ed regexp: speed up by about 30%. 
The code used interfaces in a pretty, pedagogical way but not efficiently.
Remove unnecessary interface code for significant speedups.
Before:

	regexp.BenchmarkLiteral	 1000000	      2629 ns/op
	regexp.BenchmarkNotLiteral	  100000	     18131 ns/op
	regexp.BenchmarkMatchClass	  100000	     26647 ns/op
	regexp.BenchmarkMatchClass_InRange	  100000	     27092 ns/op
	regexp.BenchmarkReplaceAll	  100000	     27014 ns/op

After:

	regexp.BenchmarkLiteral	 1000000	      2077 ns/op
	regexp.BenchmarkNotLiteral	  100000	     13738 ns/op
	regexp.BenchmarkMatchClass	  100000	     20418 ns/op
	regexp.BenchmarkMatchClass_InRange	  100000	     20999 ns/op
	regexp.BenchmarkReplaceAll	  100000	     21825 ns/op

There's likely more to do without major surgery, but this is a simple, significant step.

R=rsc
CC=golang-dev
https://golang.org/cl/3572042
 		2010-12-14 11:15:32 -08:00
doc typo 2010-12-14 11:33:17 -05:00
include cov and prof: implement windows version (just function stubs and build mods) 2010-07-30 11:47:11 +10:00
lib A selection of trivials. 2010-12-12 14:16:37 -08:00
misc cgo: do not reset tag generator between files 2010-12-13 13:20:04 -05:00
src regexp: speed up by about 30%. 2010-12-14 11:15:32 -08:00
test gc: issue 1231 2010-12-13 16:51:19 -05:00
.hgignore add _testmain.go to .hgignore 2010-10-04 14:56:44 +11:00
.hgtags tag release.2010-12-08 2010-12-08 14:30:44 +11:00
AUTHORS A+C: Lorenzo Stoakes, Nigel Kerr (both individual CLA) 2010-12-09 14:49:21 -05:00
CONTRIBUTORS A+C: Lorenzo Stoakes, Nigel Kerr (both individual CLA) 2010-12-09 14:49:21 -05:00
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
favicon.ico add a favicon plus a couple of hi-res versions of gordon 2009-10-26 10:13:07 -07:00

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.