Re: kernel 100% CPU

From: Mateusz Guzik <mjguzik_at_gmail.com>
Date: Sun, 03 Sep 2023 14:02:56 UTC
On 9/3/23, Graham Perrin <grahamperrin@gmail.com> wrote:
> On 03/09/2023 09:01, Juraj Lutter wrote:
>> … The script mjg@ provided is not a shell script.
>>
>> The script filename is “script.d” where you should put the
>> above-mentioned DTrace script (without the "dtrace -s script.d -o out”
>> line).
>
>
> Thanks, I guess that I'm still doing something wrong:
>
>
> root@mowa219-gjp4-8570p-freebsd:/home/grahamperrin/Documents/IT/BSD/FreeBSD/kernel-cpu
>
> # time dtrace -s script.d -o /tmp/out
> dtrace: script 'script.d' matched 4 probes
> ^C0.246u 4.049s 27:25.70 0.2%   14+91k 261+0io 274pf+0w
> root@mowa219-gjp4-8570p-freebsd:/home/grahamperrin/Documents/IT/BSD/FreeBSD/kernel-cpu
>
> # cat /tmp/out
>
> CPU     ID                    FUNCTION:NAME
>    3      2                             :END
>
> root@mowa219-gjp4-8570p-freebsd:/home/grahamperrin/Documents/IT/BSD/FreeBSD/kernel-cpu
>

The script is intended to run when you have git executing for a long time.

-- 
Mateusz Guzik <mjguzik gmail.com>