[users at bb.net] Performance issues in 2.10

[Yngve N. Pettersen]

Hi,

I checked a little with the inspector, and AFAICT the values were  
correctly added to the API parameters, so the likely error location is on  
the other side, on the server side, in the plugin.

I probably won't be able to change the script for some hours, since the  
file needs to be reloaded, which means restarting the buildbot.


On Wed, 13 Jan 2021 12:33:02 +0100, Pierre Tardy <tardyp at gmail.com> wrote:

> I am not sure why this wouldn't work. I vaguely recall there was an issue
> there, but can't figure it out staring at the code.
> As this is quite ancient, I am not sure the JS part will even build  
> anymore
> :-/
>
> You can change the default values at that line in the python
> https://github.com/tardyp/buildbot_profiler/blob/master/buildbot_profiler/api.py#L193
> I think you will be able to force them by editing this file inside your
> virtualenv..
>
>
> Regards
> Pierre
>
>
> Le mer. 13 janv. 2021 à 11:46, Yngve N. Pettersen <yngve at vivaldi.com> a
> écrit :
>
>> > I insist on the buildbot profiler. What I was saying before is that  
>> you
>> > need to hit the record button before the problem appears, and put a  
>> large
>> > enough record time to be sure to catch a spike.
>> > Then, you will be able to zoom to the cpu spike and catch the issue
>> > precisely.
>> >
>> > If the spike is in the order of minutes like you said, you can
>> configure
>> > it
>> > like this and get enough samples to get enough evidence to where the  
>> code
>> > is actually spending time:
>> >
>> > ProfilerService(frequency=500, gatherperiod=60 * 60, mode='virtual',
>> > basepath=None, wantBuilds=100
>>
>> I tried configuring this with the settings dropdown in the WebGUI  
>> plugin,
>> but AFAICT it is not working, it only gathers info for 30 seconds.
>>
>> I guess I must be holding it incorrectly.
>>
>> > This will record for one hour, and mitigate the memory used if you  
>> worry
>> > about it.
>>
>> --
>> Sincerely,
>> Yngve N. Pettersen
>> Vivaldi Technologies AS
>>


-- 
Sincerely,
Yngve N. Pettersen
Vivaldi Technologies AS