1
0
mirror of https://github.com/golang/go synced 2024-11-21 23:14:40 -07:00
The Go programming language
Go to file
Russ Cox 9b875bc037 bytes: faster Count, Index, Equal
Benchmarks are from GOARCH=amd64 on a MacPro5,1.

benchmark                                    old MB/s     new MB/s  speedup
bytes_test.BenchmarkEqual32                    452.89       891.07    1.97x
bytes_test.BenchmarkEqual4K                    852.71      1700.44    1.99x
bytes_test.BenchmarkEqual4M                    841.53      1587.93    1.89x
bytes_test.BenchmarkEqual64M                   838.22      1578.14    1.88x

bytes_test.BenchmarkIndex32                     58.02        48.99    0.84x
bytes_test.BenchmarkIndex4K                     48.26        41.32    0.86x
bytes_test.BenchmarkIndex4M                     48.20        41.24    0.86x
bytes_test.BenchmarkIndex64M                    48.08        41.21    0.86x
bytes_test.BenchmarkIndexEasy32                410.04       546.82    1.33x
bytes_test.BenchmarkIndexEasy4K                849.26     14257.37   16.79x
bytes_test.BenchmarkIndexEasy4M                854.54     17222.15   20.15x
bytes_test.BenchmarkIndexEasy64M               843.57     11060.40   13.11x

bytes_test.BenchmarkCount32                     57.24        50.68    0.89x
bytes_test.BenchmarkCount4K                     48.19        41.82    0.87x
bytes_test.BenchmarkCount4M                     48.18        41.74    0.87x
bytes_test.BenchmarkCount64M                    48.17        41.71    0.87x
bytes_test.BenchmarkCountEasy32                433.11       547.44    1.26x
bytes_test.BenchmarkCountEasy4K               1130.59     14194.06   12.55x
bytes_test.BenchmarkCountEasy4M               1131.23     17231.18   15.23x
bytes_test.BenchmarkCountEasy64M              1111.40     11068.88    9.96x

The non-easy Count/Index benchmarks are a worst case input.

regexp.BenchmarkMatchEasy0_32                  237.46       221.47    0.93x
regexp.BenchmarkMatchEasy0_1K                  553.53      1019.72    1.84x
regexp.BenchmarkMatchEasy0_32K                 693.99      1672.06    2.41x
regexp.BenchmarkMatchEasy0_1M                  688.72      1611.68    2.34x
regexp.BenchmarkMatchEasy0_32M                 680.70      1565.05    2.30x
regexp.BenchmarkMatchEasy1_32                  165.56       243.08    1.47x
regexp.BenchmarkMatchEasy1_1K                  336.45       496.32    1.48x
regexp.BenchmarkMatchEasy1_32K                 302.80       425.63    1.41x
regexp.BenchmarkMatchEasy1_1M                  300.42       414.20    1.38x
regexp.BenchmarkMatchEasy1_32M                 299.64       413.47    1.38x

R=golang-dev, r, iant
CC=golang-dev
https://golang.org/cl/5451116
2011-12-07 15:09:56 -05:00
doc doc: fix weekly.2011-12-06 release notes typo 2011-12-07 13:33:59 +11:00
include lib9: add ctime 2011-11-07 13:15:16 -05:00
lib godoc: <pre> must not occur inside <p> 2011-12-07 15:00:38 -05:00
misc misc/benchcmp: don't require "Benchmark" at beginning of line 2011-12-07 10:30:08 -08:00
src bytes: faster Count, Index, Equal 2011-12-07 15:09:56 -05:00
test test: make array smaller in nilptr test 2011-12-07 15:00:44 -05:00
.hgignore build: update .hgignore 2011-12-02 16:24:12 +11:00
.hgtags tag weekly.2011-12-06 2011-12-07 13:38:12 +11:00
AUTHORS A+C: Olivier Duperray, Taru Karttunen (individual CLA) 2011-12-07 15:00:32 -05:00
CONTRIBUTORS A+C: Olivier Duperray, Taru Karttunen (individual CLA) 2011-12-07 15:00:32 -05:00
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

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.