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smasher164 141b09726d net/http: make copyValues append instead of calling Add
This results in a performance boost:

name          old time/op    new time/op    delta
CopyValues-4    3.46µs ± 3%    1.53µs ± 3%  -55.85%  (p=0.000 n=18+19)

name          old alloc/op   new alloc/op   delta
CopyValues-4    1.52kB ± 0%    0.74kB ± 0%  -51.58%  (p=0.000 n=20+20)

name          old allocs/op  new allocs/op  delta
CopyValues-4      24.0 ± 0%      11.0 ± 0%  -54.17%  (p=0.000 n=20+20)

Fixes #33744.

Change-Id: Ibc653fb076a9a6aaa775fcc9ca720fb90e68cf96
Reviewed-on: https://go-review.googlesource.com/c/go/+/191057
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2019-09-07 22:21:30 +00:00
.github .github: don't render author-facing text in ISSUE_TEMPLATE 2018-11-02 04:47:34 +00:00
api api/go1.13: add debug/elf.Symbol fields added in CL 184099 2019-08-08 18:44:16 +00:00
doc spec: clarify that shift count must be non-negative 2019-09-04 16:01:24 +00:00
lib/time lib/time: update tz data to 2019b 2019-07-03 23:08:27 +00:00
misc misc/cgo/test: use __atomic intrinsics instead of __sync 2019-09-06 17:38:58 +00:00
src net/http: make copyValues append instead of calling Add 2019-09-07 22:21:30 +00:00
test cmd/compile: rewrite untyped constant conversion logic 2019-09-06 23:15:48 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A: Add Maya Rashish (individual CLA) 2019-04-23 14:40:30 +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 1.13 2019-08-28 21:48:01 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS
README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
SECURITY.md SECURITY.md: add security file 2019-05-23 21:22:44 +00:00
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README.md

The Go Programming Language

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