> * Bruce Momjian <pgman@candle.pha.pa.us> [001210 12:19] wrote:
> > > Postgre is not threaded, but every connection gets it's own process. The OS
> > > will distribute the processes across the processors. Not sure I said that
> > > very will.
> > >
> > > Basically a single connection will not be any faster with SMP, but multiple
> > > connections will be.
> >
> > Actually, even a single process will be faster because all other system
> > process will run on other cpu's.
>
> Depending on how idle you are, the large overhead of bus locking
> can cause a lot of perf degredation(sp?) for the idle SMP case.
True. I was thinking more of the backend having to give up the cpu to
allow other processes to run. With two cpu's, I believe one backend can
camp out on a cpu forever as long as the other cpu doesn't get busy.
--
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