The Go programming language
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Matthew Dempsky 166b1219b8 cmd/compile: allocate Nodes together with Name/Param/Func
After allocating a Node that needs a Name, Param, and/or Func field,
we never clear that field, so we can reduce GC overhead slightly by
allocating them together with the owner Node.

name       old time/op     new time/op     delta
Template       325ms ± 7%      325ms ± 7%    ~           (p=0.910 n=29+30)
Unicode        177ms ±12%      173ms ±11%    ~           (p=0.110 n=29+30)
GoTypes        1.06s ± 7%      1.05s ± 5%  -1.22%        (p=0.027 n=30+30)
Compiler       4.48s ± 3%      4.47s ± 3%    ~           (p=0.423 n=30+30)

name       old user-ns/op  new user-ns/op  delta
Template        476M ±22%       467M ±14%    ~           (p=0.310 n=29+30)
Unicode         298M ±22%       294M ±25%    ~           (p=0.335 n=30+30)
GoTypes        1.54G ± 9%      1.48G ± 9%  -4.06%        (p=0.000 n=30+30)
Compiler       6.26G ± 6%      6.14G ± 6%  -1.90%        (p=0.004 n=30+30)

name       old alloc/op    new alloc/op    delta
Template      40.9MB ± 0%     41.1MB ± 0%  +0.53%        (p=0.000 n=30+30)
Unicode       30.9MB ± 0%     31.0MB ± 0%  +0.16%        (p=0.000 n=30+30)
GoTypes        122MB ± 0%      123MB ± 0%  +0.37%        (p=0.000 n=30+30)
Compiler       477MB ± 0%      479MB ± 0%  +0.37%        (p=0.000 n=30+29)

name       old allocs/op   new allocs/op   delta
Template        400k ± 1%       376k ± 1%  -5.96%        (p=0.000 n=30+30)
Unicode         330k ± 1%       325k ± 1%  -1.48%        (p=0.000 n=30+30)
GoTypes        1.22M ± 0%      1.16M ± 0%  -4.38%        (p=0.000 n=30+30)
Compiler       4.35M ± 0%      4.13M ± 0%  -5.08%        (p=0.000 n=30+29)

Change-Id: I9bdc7d9223bb32f785df71810564e82d9a76d109
Reviewed-on: https://go-review.googlesource.com/36022
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-02-01 20:26:08 +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 all: merge dev.typealias into master 2017-01-31 13:01:31 -05:00
lib/time lib/time: update tzdata to 2016j 2017-01-05 01:00:53 +00:00
misc runtime: reorder modules so main.main comes first 2017-01-25 22:33:57 +00:00
src cmd/compile: allocate Nodes together with Name/Param/Func 2017-02-01 20:26:08 +00:00
test all: merge dev.inline into master 2017-02-01 09:47:23 -05:00
.gitattributes
.gitignore .gitignore: fix attempt at rooted paths 2017-01-05 01:29:25 +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
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS
README.md README.md: update and simplify 2017-01-17 21:26:43 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +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.

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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.