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Sébastien Paolacci d8626ef128 runtime: faster mcentral alloc.
Reduce individual object handling by anticipating how much of them are servable.

Not a chunked transfer cache, but decent enough to make sure the bottleneck is not here.

Mac OSX, median of 10 runs:

benchmark                 old ns/op    new ns/op    delta
BenchmarkBinaryTree17    5358937333   4892813012   -8.70%
BenchmarkFannkuch11      3257752475   3315436116   +1.77%
BenchmarkGobDecode         23277349     23001114   -1.19%
BenchmarkGobEncode         14367327     14262925   -0.73%
BenchmarkGzip             441045541    440451719   -0.13%
BenchmarkGunzip           139117663    139622494   +0.36%
BenchmarkJSONEncode        45715854     45687802   -0.06%
BenchmarkJSONDecode       103949570    106530032   +2.48%
BenchmarkMandelbrot200      4542462      4548290   +0.13%
BenchmarkParse              7790558      7557540   -2.99%
BenchmarkRevcomp          831436684    832510381   +0.13%
BenchmarkTemplate         133789824    133007337   -0.58%

benchmark                  old MB/s     new MB/s  speedup
BenchmarkGobDecode            32.82        33.33    1.02x
BenchmarkGobEncode            53.42        53.86    1.01x
BenchmarkGzip                 43.70        44.01    1.01x
BenchmarkGunzip              139.09       139.14    1.00x
BenchmarkJSONEncode           42.69        42.56    1.00x
BenchmarkJSONDecode           18.78        17.91    0.95x
BenchmarkParse                 7.37         7.67    1.04x
BenchmarkRevcomp             306.83       305.70    1.00x
BenchmarkTemplate             14.57        14.56    1.00x

R=rsc, dvyukov
CC=golang-dev
https://golang.org/cl/7005055
2013-01-18 16:39:22 -05:00
api api: add go/types to next.txt 2013-01-02 15:28:30 -05:00
doc doc/contribute.html: mention hg mail during hg change discussion 2013-01-18 14:08:42 -05:00
include build: add missing function declarations for Plan 9 2013-01-11 16:58:46 -08:00
lib lib/godoc: link to Projects wiki page instead of dashboard 2013-01-18 19:25:45 +11:00
misc misc/dashboard/godashboard: delete 2013-01-18 13:47:01 +11:00
src runtime: faster mcentral alloc. 2013-01-18 16:39:22 -05:00
test cmd/gc, cmd/6g: fix error on large stacks. 2013-01-18 22:36:43 +01:00
.hgignore build: update Makefile to track source code dependencies better 2012-03-13 03:31:11 +08:00
.hgtags tag go1.0.3 2012-09-24 13:15:33 -05:00
AUTHORS A+C: Georg Reinke (individual CLA) 2013-01-10 11:37:52 -08:00
CONTRIBUTORS C: add Carl Shapiro (Google CLA). 2013-01-18 10:25:23 +11:00
favicon.ico godoc: update favicon 2012-10-11 17:02:36 +11:00
LICENSE doc: update licensing text one more time 2012-03-27 15:09:13 +11:00
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.