Re: Tuning scenarios (was Changing the default configuration)
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Kevin Brown <kevin@sysexperts.com>
Cc: pgsql-performance@postgresql.org
Date: 2003-02-14T15:05:44Z
Lists: pgsql-hackers, pgsql-performance
Kevin Brown <kevin@sysexperts.com> writes: > Tom Lane wrote: >> ... But those same >> limitations cause the results to be unstable from run to run, which >> is why I don't have a lot of faith in reports of pgbench numbers. >> You need to work quite hard to get reproducible numbers out of it. > The interesting question is whether that's more an indictment of how > PG does things or how pg_bench does things. I didn't draw a conclusion on that ;-). I merely pointed out that the numbers are unstable, and therefore not to be trusted without a great deal of context ... regards, tom lane