Re: netbsd-6.1: squid from pkgsrc-2013-Q2 uses too much CPU time

[Hisashi T Fujinaka <htodd%twofifty.com@localhost>]

On Sun, 15 Sep 2013, Matthias Scheler wrote:

> On Sun, Sep 15, 2013 at 08:44:42AM -0700, Hisashi T Fujinaka wrote:
> > On Sun, 15 Sep 2013, Matthias Scheler wrote:
> >
> > > On Sun, Sep 15, 2013 at 01:39:33PM +0200, Adrian Immanuel Kie? wrote:
> > > > I thank you for your suggestions but testing the DNS time is nonsense
> > > > because my DNS server runs on another boxen and the IPNAT configuration
> > > > on this NetBSD boxen works very fine because without the squid proxy I
> > > > can connect very much faster to the outer world.
> > >
> > > You are making the assumption here that the behaviour you observe in
> > > a browser allows conclusion to Squid's behaviour.
> > >
> > > So please humour me and run those two commands. It will only take
> > > a few seconds.
> >
> > There does appear to be something that uses a lot of CPU in squid. I've
> > just been restarting it several times a day.
>
> Okay.
>
> > ktrace and what was the other command you wanted him to run? I'll look
> > into this as well.
>
> My commands were related to the big delays in page loads. If you don't
> experience those it is not related.

I usually see the delays, and then check to see if I'm using 100% CPU
(which I am). I'm guessing it's some weird spin lock, but I haven't
looked into it yet. I probably have time today.

--
Hisashi T Fujinaka - htodd%twofifty.com@localhost
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte