tree 311e1ba799f61bfbf29f7612799d1132e0b2b559
parent 79db59ded9dab276507f3a045e42b76eef5a35b4
author Michael Anthony Knyszek <mknyszek@google.com> 1650579511 +0000
committer Michael Knyszek <mknyszek@google.com> 1651010892 +0000

runtime: yield instead of sleeping in runqgrab on OpenBSD

OpenBSD has a coarse sleep granularity that rounds up to 10 ms
increments. This can cause significant STW delays, among other issues.
As far as I can tell, there's only 1 tightly timed sleep without an
explicit wakeup for which this actually matters.

Fixes #52475.

Change-Id: Ic69fc11096ddbbafd79b2dcdf3f912fde242db24
Reviewed-on: https://go-review.googlesource.com/c/go/+/401638
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>