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Alex Brainman ab4c9298b8 runtime: do not call timeBeginPeriod on windows
Calling timeBeginPeriod changes Windows global timer resolution
from 15ms to 1ms. This used to improve Go runtime scheduler
performance, but not anymore. Thanks to @aclements, scheduler now
behaves the same way if we call timeBeginPeriod or not.

Remove call to timeBeginPeriod, since it is machine global
resource, and there are downsides of using low timer resolution.
See issue #8687 for details.

Fixes #8687

Change-Id: Ib7e41aa4a81861b62a900e0e62776c9ef19bfb73
Reviewed-on: https://go-review.googlesource.com/17164
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Yasuhiro MATSUMOTO <mattn.jp@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
2015-11-24 01:11:58 +00:00
api api: update next.txt 2015-11-13 09:26:18 +00:00
doc doc: update 1.6.txt for fmt.Scanf change 2015-11-23 21:13:23 +00:00
lib/time lib/time: update to IANA release 2015e. 2015-07-22 02:56:31 +00:00
misc cmd/cgo: ignore vars with no name or type if they have a AttrSpecification 2015-11-23 04:04:07 +00:00
src runtime: do not call timeBeginPeriod on windows 2015-11-24 01:11:58 +00:00
test cmd/compile: address several more 1.6 TODOs in parser 2015-11-21 07:21:23 +00:00
.gitattributes
.gitignore runtime: break out system-specific constants into package sys 2015-11-12 17:04:45 +00:00
AUTHORS A+C: automated updates 2015-11-13 14:07:05 +00:00
CONTRIBUTING.md
CONTRIBUTORS A+C: add Steve Newman (Google CLA) 2015-11-13 15:51:00 +00:00
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LICENSE
PATENTS
README.md readme: emphasize issue tracker is for bugs/proposals 2015-10-02 18:44:14 +00:00
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