Re: Pg on SMP half-powered

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От Víctor Romero
Тема Re: Pg on SMP half-powered
Дата
Msg-id 200107081137.f68BbXa68214@postgresql.org
обсуждение исходный текст
Ответ на Re: Pg on SMP half-powered  (Lamar Owen <lamar.owen@wgcr.org>)
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El Sábado 07 Julio 2001 16:36, Lamar Owen escribió:
> On Thursday 05 July 2001 10:51, Víctor Romero wrote:
> >  I am running postgresql 7.1 on a SMP Linux box. It runs, but it never
> > pass a loadavg of 0.4, no matter how I try to overload the system.
> >
> >  The same configuration, the same executable, the same test on a non-SMP
> > machine gives a loadavg of 19.
>
> Sounds like a kernel issue.
>
> However, the load average numbers alone are not enough information to get a
> benchmark.  You need to benchmark using a benchmark that can generate
> enough traffic to load both machines and get good time results for the run
> of the standard benchmark queries.
Now Im at home... as soon as I get office again Ill send you the little script benchs I wrote, I think them genetares
enoughtraffic because if I throw more than 400 threads the postmaster start to fail... 
 



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