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The Go programming language
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cf99535e21
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sergey cf99535e21 net/http: reduce allocs on write cookie 
Pregrow buffer to reduce allocs on building cookie string.
We calc cookie name value and domain size (most distributed by value) and
add 110 extra characters allows to write most cookie attributes
without additional allocations in most cases.

name              old time/op    new time/op    delta
CookieString-4      1.65µs ± 3%    1.27µs ± 2%  -23.01%  (p=0.008 n=5+5)
ReadSetCookies-4    5.78µs ± 4%    5.67µs ± 3%     ~     (p=0.310 n=5+5)
ReadCookies-4       7.12µs ± 4%    7.04µs ± 3%     ~     (p=0.690 n=5+5)

name              old alloc/op   new alloc/op   delta
CookieString-4        360B ± 0%      144B ± 0%  -60.00%  (p=0.008 n=5+5)
ReadSetCookies-4      976B ± 0%      976B ± 0%     ~     (all equal)
ReadCookies-4       2.17kB ± 0%    2.17kB ± 0%     ~     (all equal)

name              old allocs/op  new allocs/op  delta
CookieString-4        5.00 ± 0%      1.00 ± 0%  -80.00%  (p=0.008 n=5+5)
ReadSetCookies-4      15.0 ± 0%      15.0 ± 0%     ~     (all equal)
ReadCookies-4         16.0 ± 0%      16.0 ± 0%     ~     (all equal)

Change-Id: I50defac954a135b785b3551342b00878429b3d7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/163017
Reviewed-by: Volker Dobler <dr.volker.dobler@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-25 15:21:06 +00:00
.github .github: don't render author-facing text in ISSUE_TEMPLATE 2018-11-02 04:47:34 +00:00
api text/scanner: don't liberally consume (invalid) floats or underbars 2019-02-20 20:23:28 +00:00
doc cmd/go: add GOWASM environment variable 2019-03-23 20:33:57 +00:00
lib/time time: read 64-bit data if available 2019-02-26 23:10:35 +00:00
misc misc/wasm: exit with code 1 if WebAssembly.instantiate fails 2019-03-25 07:55:12 +00:00
src net/http: reduce allocs on write cookie 2019-03-25 15:21:06 +00:00
test test: new test for issue 30908 2019-03-25 15:00:08 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: change email address for Elias Naur 2019-01-23 15:05:26 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS CONTRIBUTORS: second round of updates for Go 1.12 2019-01-30 18:01:19 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE
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README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
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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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