[cod] [COD] SMP Kernels

Carlo carlomoretto at gmail.com
Mon Jan 30 11:15:16 EST 2006


I thought so, problem is the app im trying to run does not work with an smp
kernel........back to the drawing board  I guess

Thanks anyway

On 30/01/06, Robert Mount <rmount at pobox.com> wrote:
>
> You need an SMP kernel in order for more than a single CPU to be seen
> by the OS.  So, load up the SMP kernel and try your taskset again.
>
> --Rob
>
> On 1/30/06, Carlo <carlomoretto at gmail.com> wrote:
> > Installed non smp kernel and tried using taskset but it doesnt seem to
> be
> > working
> >
> > Here is what I did:
> >
> > Prompt>taskset -p 03 4368
> > pid 4368's current affinity mask: 1
> > pid 4368's new affinity mask: 1
> >
> > Prompt>taskset -p 02 4368
> >  pid 4368's current affinity mask: 1
> >  pid 4368's new affinity mask: 1
> >
> > You can see that it wont set it to anything but 1. Also, when I issue
> the
> > following command:
> >
> > cat /proc/cpuinfo
> >
> > Only 1 processor is showing...what can I do to resolve this (apart from
> > using an smp kernel!)
> >
> > Thanks
> >
> > On 30/01/06, Quint van Drosthagen <cod at se-easy.net> wrote:
> > >
> > >
> > >
> > > Ok didn't know that but still I think the load on the machine will be
> high
> > because you still have the problem that each process has to wait until
> he
> > gets processor time.. I'm curious what your vmstat is saying in this
> cause..
> > Can you run a vmstat 5 for my for about 5 minutes and let me know what
> the
> > procs/b is saying… This line indicates how many procs are waiting until
> they
> > are getting cpu time….
> > >
> > >
> > >
> > > Regards
> > >
> > > Quint
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Quint van Drosthagen [mailto:cod at se-easy.net]
> > > Sent: zondag 29 januari 2006 19:57
> > > To: cod at icculus.org
> > >
> > > Subject: RE: [cod] [COD] SMP Kernels
> > >
> > >
> > >
> > >
> > > Yes verry… I run a dual amd cpu system, and made a while back to start
> the
> > wrong kernel… At that moment everything was separated on one cpu per
> > process. That isn't the problem, what the problem is is that you can't
> say
> > wich process is going to wich cpu, and that means in my case that one
> cpu
> > was overloaded and one was doing nothing. Because of this there was a
> high
> > load on my machine because everything had to wait until it can get cpu
> > power… So for a short story… Keep using smp…
> > >
> > >
> > >
> > > Regards
> > >
> > > Quint
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Carlo [mailto:carlomoretto at gmail.com]
> > > Sent: zondag 29 januari 2006 13:54
> > > To: cod at icculus.org
> > > Subject: [cod] [COD] SMP Kernels
> > >
> > >
> > >
> > > Im running a dual pentium mandrake 10.1 server with an smp kernel. The
> > server runs 2 cod servers and 1 cod2 server
> > >
> > > Would I notice a big difference in performance if I switched to a non
> smp
> > kernel?
> > >
> > > Thanks
> >
> >
>
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