DragonFly kernel List (threaded) for 2007-06
[
Date Prev][
Date Next]
[
Thread Prev][
Thread Next]
[
Date Index][
Thread Index]
Re: Interrupt load with niced processes
On Thu, Jun 07, 2007 at 12:13:00PM +0300, Hasso Tepper wrote:
> I noticed that even if I nice my compile jobs to 20, my desktop still
> lags significantly. It might not be related, but while hunting potential
> causes I noticed strange issue with load stats:
>
> ~:# while true; do echo "foo" > /dev/null; done
>
> 33.1%Sys 1.2%Intr 65.7%User 0.0%Nice 0.0%Idl
>
> ~:# while true; do nice -n 20 echo "foo" > /dev/null; done
>
> 33.3%Sys 44.2%Intr 21.9%User 0.6%Nice 0.0%Idl
>
>
> Just wrong stats? I didn't notice any obvious error at first glance in
> the kern/kern_clock.c, so anyone has ideas what's going on?
Usually echo is a shell-builtin, while `nice' is an executable,
and `nice -n20 echo' might also run a non-builtin version (/bin/echo),
which makes stats look differently.
Cheers.
[
Date Prev][
Date Next]
[
Thread Prev][
Thread Next]
[
Date Index][
Thread Index]