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Shahar Kohanim e0b04fa508 cmd/link: Preallocate Lsym map
Preallocate ~2MB for Lsym map (size calculation from http://play.golang.org/p/9L7F5naXRr).
Reduces best of 10 link time of cmd/go by ~4%.
On cmd/go max resident size unaffected, on println hello world max resident size grows by 4mb from 18mb->22mb. Performance improves in both cases.

tip:  real  0m1.283s user  0m1.502s sys 0m0.144s
this: real  0m1.341s user  0m1.598s sys 0m0.136s

Change-Id: I4a95e45fe552f1f64f53e868421b9f45a34f8b96
Reviewed-on: https://go-review.googlesource.com/19979
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-02-29 17:30:13 +00:00
.github doc: add issue and pull request templates 2016-02-26 03:16:55 +00:00
api go/types: rename Importer2 to ImporterFrom 2016-01-13 23:40:13 +00:00
doc all: remove public named return values when useless 2016-02-29 03:31:19 +00:00
lib/time misc: update timezone database to IANA 2016a 2016-02-03 03:14:59 +00:00
misc misc/cgo/testsanitizers: report stderr if go run tsan*.go fails 2016-02-29 14:58:15 +00:00
src cmd/link: Preallocate Lsym map 2016-02-29 17:30:13 +00:00
test cmd/compile: fix contrived line number errors 2016-02-26 21:25:43 +00:00
.gitattributes
.gitignore .gitignore: ignore src/go/build/zcgo.go 2016-02-24 04:25:46 +00:00
AUTHORS A+C: manual updates 2016-01-08 06:02:39 +00:00
CONTRIBUTING.md
CONTRIBUTORS A+C: manual updates 2016-01-08 06:02:39 +00:00
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README.md readme: emphasize issue tracker is for bugs/proposals 2015-10-02 18:44:14 +00:00
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The Go Programming Language

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