[users at bb.net] buildbot CPU usage

Pierre Tardy tardyp at gmail.com
Tue Aug 9 18:25:16 UTC 2016


Please note that cprofile is very intrusive and will lead to about 3x
slower code.

So I would not run that in prod. This is why I prefer statprof which is
using a non intrusive method to get the stats

Le mar. 9 août 2016 19:15, Francesco Di Mizio <francescodimizio at gmail.com>
a écrit :

> On a side note I have managed to get twistd to dump a blob I can then load
> and analyze. Got to see if I can run this in production.
> If anybody is curious the following worked for me:
> twistd --savestats -n --profiler=cprofile
>  --profile=/crcdata/profile.stats -y ./buildbot.tac
>
>
>
>
> On Tue, Aug 9, 2016 at 5:21 PM, Francesco Di Mizio <
> francescodimizio at gmail.com> wrote:
>
>> Well that's expected to an extent - p4 poller is running 'p4 changes'
>> every pollinterval seconds.
>>
>> Anyway just as a test I've tried to disable the poller and still at times
>> I am seeing the CPU spiking up to above 100%. I believe I really need to
>> profile this somehow.
>>
>> On Tue, Aug 9, 2016 at 5:08 PM, Dan Kegel <dank at kegel.com> wrote:
>>
>>> Also watch 'top' and see if poller processes are hogging resources.
>>>
>>
>>
>
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