Re: Tuning for mid-size server

On Tue, Oct 21, 2003 at 10:15:57AM -0700, Josh Berkus wrote:
> Anjan,
> 
> > I read an article that suggests you 'start' with 25% of memory for
> > shared_buffers. Sort memory was suggested to be at 2-4%. Here's the
> > link:
> > http://www.ca.postgresql.org/docs/momjian/hw_performance/node8.html
> > Maybe, I misinterpreted it.
> 
> No, I can see how you arrived at that conclusion, and Bruce is an authority.  
> I'll contact him.

I think the "25%" rule of thumb is slightly stale: above some
threshold, it just falls apart, and lots of people now have machines
well within that threshold.  Heck, I'll bet Bruce's 2-way machine is
within that threshold.

A

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