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Dmitry Vyukov 86d375498f runtime: don't recreate netpoll timers if they don't change
Currently we always delete both read and write timers and then
add them again. However, if user setups read and write deadline
separately, then we don't need to touch the other one.

name                  old time/op  new time/op  delta
TCP4OneShotTimeout-6  17.2µs ± 0%  17.2µs ± 0%     ~     (p=0.310 n=5+5)
SetReadDeadline-6      319ns ± 1%   274ns ± 2%  -13.94%  (p=0.008 n=5+5)

Update #25729

Change-Id: I4c869c3083521de6d0cd6ca99a7609d4dd84b4e4
Reviewed-on: https://go-review.googlesource.com/c/146338
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-02 12:48:25 +00:00
.github .github: don't render author-facing text in ISSUE_TEMPLATE 2018-11-02 04:47:34 +00:00
api syscall: FreeBSD 12 ino64 support 2018-10-05 21:38:13 +00:00
doc doc/go1.12: initial add of release notes for Go 1.12 2018-11-01 20:29:34 +00:00
lib/time lib/time: update vendored tzdata to release 2018e 2018-06-11 14:47:06 +00:00
misc cmd/cgo: don't update each call in place 2018-11-02 05:35:56 +00:00
src runtime: don't recreate netpoll timers if they don't change 2018-11-02 12:48:25 +00:00
test cmd/compile: implement some moves using non-overlapping reads&writes 2018-10-30 20:27:03 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: add VMware as author, Venil Noronha as contributor 2018-08-31 02:14:24 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: add VMware as author, Venil Noronha as contributor 2018-08-31 02:14:24 +00:00
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README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
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