Re: loaded router, excessive getnstimeofday in oprofile

Denys Fedoryshchenko
2008-08-26T10:31:34Z

On Tuesday 26 August 2008, Jarek Poplawski wrote:
>
> This function is really used in many places, and these profiles are
> not enough at least to me, but it seems you could have a lot of
> softirqs (and probably hrtimers) scheduling, so maybe you should try
> if e.g. disabling hrtimers or changing kernel HZ makes any difference.
>
> Jarek P.
One user is shapers, it is ok for me.
I am not sure, but maybe another user is softlockup debug option... and if
there is a lot of task switches maybe it will cause excessive load of timers
slow?