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doc: document atexit_sleep_ms flag in race_detector

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It was pointed out to me that the thread sanitizer library has many more
flags than the ones documented in this doc page. In particular, I was
able to make use of GORACE=atexit_sleep_ms=10 to reduce the amount that
'go test -race' will sleep before finishing.

I'm sure that this flag will be useful to others in the future, so add
it here. This is still not a complete list, but we can simply add useful
flags that work when we think they deserve a mention.

Change-Id: If199d36fd80a0945af90055d110519e5dba27361
Reviewed-on: https://go-review.googlesource.com/c/go/+/200863
Reviewed-by: Heschi Kreinick <heschi@google.com>
This commit is contained in:
Daniel Martí 2019-10-13 13:18:03 +01:00 committed by Heschi Kreinick
parent 6bcddae1af
commit 9df93e4d6d
1 changed files with 5 additions and 0 deletions
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doc/articles/race_detector.html
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@ -133,6 +133,11 @@ cost of increased memory usage.
<code>halt_on_error</code> (default <code>0</code>): Controls whether the program
exits after reporting first data race.
</li>
<li>
<code>atexit_sleep_ms</code> (default <code>1000</code>): Amount of milliseconds
to sleep in the main goroutine before exiting.
</li>
</ul>
<p>