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Kenny Grant 1295b745d1 net/http: improve speed of default mux 
The DefaultServeMux included in net/http uses a map to store routes,
but iterates all keys for every request to allow longer paths.

This change checks the map for an exact match first.

To check performance was better, BenchmarkServeMux has been added -
this adds >100 routes and checks the matches.

Exact matches are faster and more predictable on this benchmark
and on most existing package benchmarks.

https://perf.golang.org/search?q=upload:20170312.1

ServeMux-4  2.02ms ± 2%	0.04ms ± 2%  −98.08%  (p=0.004 n=5+6)

https://perf.golang.org/search?q=upload:20170312.2

ReadRequestChrome-4	184MB/s  ± 8%	186MB/s  ± 1%	~
ReadRequestCurl-4	45.0MB/s ± 1%	46.2MB/s ± 1%	+2.71%
Read...Apachebench-4	45.8MB/s ±13%	48.7MB/s ± 1%	~
ReadRequestSiege-4	63.6MB/s ± 5%	69.2MB/s ± 1%	+8.75%
ReadRequestWrk-4	30.9MB/s ± 9%	34.4MB/s ± 2%	+11.25%

Change-Id: I8afafcb956f07197419d545a9f1c03ecaa307384
Reviewed-on: https://go-review.googlesource.com/38057
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-03-22 23:33:19 +00:00
.github doc: improve issue template and contribution guidelines 2017-02-11 20:42:06 +00:00
api math/big: define Word as uint instead of uintptr 2017-02-21 19:31:40 +00:00
doc doc: reorganize the contribution guidelines into a guide 2017-03-16 21:43:32 +00:00
lib/time *.bash: always use the same string equality operator 2017-03-14 21:46:31 +00:00
misc *.bash: always use the same string equality operator 2017-03-14 21:46:31 +00:00
src net/http: improve speed of default mux 2017-03-22 23:33:19 +00:00
test test/bench/go1: fix typo in parserdata_test.go comment 2017-03-22 03:23:16 +00:00
.gitattributes
.gitignore cmd/dist: move cmd/go z files to cmd/go/internal/cfg 2017-02-03 20:30:52 +00:00
AUTHORS A+C: automated update 2016-12-21 03:22:22 +00:00
CONTRIBUTING.md doc: improve issue template and contribution guidelines 2017-02-11 20:42:06 +00:00
CONTRIBUTORS A+C: automated update 2016-12-21 03:22:22 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS
README.md readme: add attribution for the Gopher image 2017-02-03 19:39:41 +00:00
robots.txt

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

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

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After downloading a binary release, visit https://golang.org/doc/install or load doc/install.html in your web browser for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source or load doc/install-source.html in your web browser for source installation instructions.

Contributing

Go is the work of hundreds of contributors. We appreciate your help!

To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html

Note that the Go project does not use GitHub pull requests, and that we use the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.