Re: 2.5 profiling

Hello All,

I am just curious to share some views on this
discussion. As previously said, madhav and myself are
doing eventio stuff now. It is going smoothly.

Can you throw some views on how much % of cpu we can
save once it is finished successfully?

Henrik said previously that linux kernel has some bugs
in RT signal. A person who has been working on RT
signals says 2.4.13 kernel is okay for production.

Regards,
Venkatesh

--- Adrian Chadd <adrian@squid-cache.org> wrote:
> On Thu, Nov 22, 2001, Henrik Nordstrom wrote:
> > On Thursday 22 November 2001 02.13, Adrian Chadd
> wrote:
> >
> > > So far, running aufs, squid-2.5 has been able to
> hold up an 80req/sec
> > > load (on a celeron 500). Any more than 80req/sec
> and I flatline the CPU
> > > and cause squid to go into spiralling sudden
> death, but that may
> > > also be due to the restricted CPU in my
> (current) polygraph testing
> > > machine. I'll try it from a faster machine
> today.
> >
> > How far do you get if you disable caching?
> >
> > That CPU should be capable of a lot more than 80.
>
> I'm sure it'll go past 80 with the CPU pegged - just
> the service times
> will blow out a little. I'll run it on a more
> powerful polygraph
> machine tonight when I get home.
>
> > What is your drive configuration?
>
> 3x 9gig 7200? RPM ultra160 scsi disks. Configured
> using reiserfs,
> and I'm using 6gb of each per storedir.
>
> > > I currently can't debug the squid-aufs code
> under irix, as gdb doesn't
> > > do threaded applications at all. I'll do a trial
> run in a couple of days.
> >
> > Under Linux before GDB knew about Linux Threads
> one could at least debug the
> > main thread.. or attach the debugger specifically
> to the pid of some other
> > thread. But I guess this is a positive byproduct
> of the way Linux Threads are
> > implemented (1-1 kernel threads using what looks
> like processes to everyone
>
> Yup. But the threads under IRIX are implemented ..
> well, they look like
> they're implemented much, much differently. :)
>
> I'll give it some thought and play some more over
> the next few days.
>
>
>
>
> adrian
>

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Received on Thu Nov 22 2001 - 01:26:41 MST