Re: kernel 100% CPU

From: Mateusz Guzik <mjguzik_at_gmail.com>
Date: Sun, 03 Sep 2023 16:55:41 UTC 
On 9/3/23, Graham Perrin <grahamperrin@gmail.com> wrote:
> On 02/09/2023 18:31, Mateusz Guzik wrote:
>> On 9/2/23, Graham Perrin<grahamperrin@gmail.com> wrote:
>>> … I began the trace /after/ the issue became observable.
>>> Will it be more meaningful to begin a trace and then reproduce the issue
>>> (before the trace ends)?
>>>
>>> …
>> Looks like you have a lot of unrelated traffic in there.
>>
>> …
>
> Instead, <https://mega.nz/folder/dQdgXK4K#Eb-uC02fT63eweQWWwD8TA> the
> two files from 09:21 this morning. Are these useful?
>
> Before this run of DTrace, I quit Firefox and other applications that
> might be causing noise (and the OS has been restarted since my last run
> of poudriere-bulk(8)).
>
> dtrace -x stackframes=100 -n 'profile-997 /arg0/ { @[stack()] = count();
> } tick-60s { exit(0); }' -o out.kern_stacks
>

Post your "sysctl -a" somewhere.


-- 
Mateusz Guzik <mjguzik gmail.com>