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Dmitriy Vyukov 20f6a8fdaf net/http: reduce mutex contention 
benchmark                           old ns/op    new ns/op    delta
BenchmarkClientServerParallel          155909       154454   -0.93%
BenchmarkClientServerParallel-2         86012        82986   -3.52%
BenchmarkClientServerParallel-4         70211        55168  -21.43%
BenchmarkClientServerParallel-8         80755        47862  -40.73%
BenchmarkClientServerParallel-12        77753        51478  -33.79%
BenchmarkClientServerParallel-16        77920        50278  -35.47%
The benchmark is https://golang.org/cl/6441134
The machine is 2 x 4 HT cores (16 HW threads total).
Fixes #3946.
Now contention moves to net.pollServer.AddFD().

R=bradfitz
CC=bradfitz, dave, dsymonds, gobot, golang-dev, remyoudompheng
https://golang.org/cl/6454142
2012-08-20 13:28:27 +04:00
api
doc go_spec: unary + and - are also defined for complex types 2012-08-17 11:36:21 -07:00
include
lib
misc pprof: make it work on windows again 2012-08-18 17:03:32 +10:00
src net/http: reduce mutex contention 2012-08-20 13:28:27 +04:00
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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.