Re: performance problem

Rick Gigger <rick@alpinenetworking.com>

From: "Rick Gigger" <rick@alpinenetworking.com>
To: "Tom Lane" <tgl@sss.pgh.pa.us>
Cc: "Doug McNaught" <doug@mcnaught.org>, "scott.marlowe" <scott.marlowe@ihs.com>, "PgSQL General ML" <pgsql-general@postgresql.org>
Date: 2003-11-20T22:21:55Z
Lists: pgsql-general
> "Rick Gigger" <rick@alpinenetworking.com> writes:
> > I am confused.  In this tutorial (by Bruce Momjian)
> > http://candle.pha.pa.us/main/writings/pgsql/hw_performance/node8.html
> > it says: "As a start for tuning, use 25% of RAM for cache size, and 2-4%
for
> > sort size."
>
> That advice is widely considered obsolete --- it was developed in the
> days when typical RAM sizes were a lot less than today.  I don't believe
> anyone has shown a good case for setting shared_buffers much higher than
> 10000.
>
> regards, tom lane

Thank you!