[19.03 backport] Use condition variable to wake stats collector.#40549
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thaJeztah merged 1 commit intomoby:19.03from Feb 22, 2020
Merged
[19.03 backport] Use condition variable to wake stats collector.#40549thaJeztah merged 1 commit intomoby:19.03from
thaJeztah merged 1 commit intomoby:19.03from
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Before the collection goroutine wakes up every 1 second (as configured). This sleep interval is in case there are no stats to collect we don't end up in a tight loop. Instead use a condition variable to signal that a collection is needed. This prevents us from waking the goroutine needlessly when there is no one looking for stats. For now I've kept the sleep just moved it to the end of the loop, which gives some space between collections. Signed-off-by: Brian Goff <cpuguy83@gmail.com> (cherry picked from commit e75e6b0) Signed-off-by: Brian Goff <cpuguy83@gmail.com>
AkihiroSuda
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Feb 21, 2020
tonistiigi
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Feb 21, 2020
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Windows is failing is related to #40525 (comment)
I'll backport #40506 as a temporary workaround |
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Opened #40551 |
thaJeztah
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thaJeztah
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LGTM
kicked CI as the Windows fix was merged, but possibly this needs a rebase to get the fix in
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Backport of #40481
Before the collection goroutine wakes up every 1 second (as configured).
This sleep interval is in case there are no stats to collect we don't
end up in a tight loop.
Instead use a condition variable to signal that a collection is needed.
This prevents us from waking the goroutine needlessly when there is no
one looking for stats.
For now I've kept the sleep just moved it to the end of the loop, which
gives some space between collections.
Signed-off-by: Brian Goff cpuguy83@gmail.com
(cherry picked from commit e75e6b0)
Signed-off-by: Brian Goff cpuguy83@gmail.com
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