[users at bb.net] buildbot CPU usage

[Francesco Di Mizio]

Pierre,

if you can enlighten on how you intend to use statprof, I will be happy to
give it a try.
This problem here is on top of my list right now as it's making my prod env
unusable.

On Tue, Aug 9, 2016 at 8:25 PM, Pierre Tardy <tardyp at gmail.com> wrote:

> 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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