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Josh Bleecher Snyder 948b21a3d7 testing: only call ReadMemStats if necessary when benchmarking When running benchmarks with -cpuprofile, the entire process gets profiled, and ReadMemStats is surprisingly expensive. Running the sort benchmarks right now with -cpuprofile shows almost half of all execution time in ReadMemStats. Since ReadMemStats is not required if the benchmark does not need allocation stats, simply skip it. This will make cpu profiles nicer to read and significantly speed up the process of running benchmarks. It might also make sense to toggle cpu profiling on/off as we begin/end individual benchmarks, but that wouldn't get us the time savings of skipping ReadMemStats, so this CL is useful in itself. Change-Id: I425197b1ee11be4bc91d22b929e2caf648ebd7c5 Reviewed-on: https://go-review.googlesource.com/36791 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>		2017-02-11 02:35:59 +00:00
.github	doc: improve issue template	2016-08-29 03:33:28 +00:00
api	Revert "cmd/go: note when some Go files were ignored on no-Go-files errors"	2016-12-21 05:25:57 +00:00
doc	spec: refer to "not defined type" rather than "unnamed type" in conversions	2017-02-10 01:23:13 +00:00
lib/time	lib/time: update tzdata to 2016j	2017-01-05 01:00:53 +00:00
misc	runtime: enable/disable SIGPROF if needed when profiling	2017-02-09 18:53:34 +00:00
src	testing: only call ReadMemStats if necessary when benchmarking	2017-02-11 02:35:59 +00:00
test	cmd/compile/internal/syntax: removed gcCompat code needed to pass orig. tests	2017-02-10 01:22:30 +00:00
.gitattributes	.gitattributes: prevent all magic line ending changes	2014-12-12 23:14:54 +00:00
.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: update CONTRIBUTING.md a bit, mention proposal process	2017-01-06 23:19:01 +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	LICENSE: separate, change PATENTS text	2010-12-06 16:31:59 -05:00
README.md	readme: add attribution for the Gopher image	2017-02-03 19:39:41 +00:00
robots.txt	godoc: serve robots.txt raw	2011-02-19 05:46:20 +11:00

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 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.

Download and Install

Binary Distributions

Official binary distributions are available at https://golang.org/dl/.

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.