Thread (12 messages) 12 messages, 4 authors, 2016-09-12

Re: hrtimer: interrupt took 10252 ns - meaning?

From: Vasudev Kamath <hidden>
Date: 2016-09-12 10:21:41

On Mon, Sep 12, 2016 at 2:46 PM, Stanislav Meduna [off-list ref] wrote:
This got my attention as I have hunted some very similar looking
thing 3 years ago:
When we first started facing this issue, we had explored almost all of
your threads about throttling :-), but we never found a proper answer.
We did not know exact way to reproduce the issue of throttling except
setup running for few days 2-3 will result in throttling. Only one
common behavior in every case of throttling  throttled thread had
minor page fault of 900k to 1m.

When we read description of patch from Sebastian, we had a gut feeling
it may be our case as we were also a x86 UP system and we also had
minor page faults during throttling.

After using patch we did not faced throttling even after running
couple of weeks.

Cheers,
-- 

Vasudev Kamath
https://copyninja.info
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