Re: Regression tests

From: des(at)des(dot)no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=)
To: Neil Conway <neilc(at)samurai(dot)com>
Cc: Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Regression tests
Date: 2005-05-04 07:05:18
Message-ID: 86ll6v31zl.fsf@xps.des.no
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Neil Conway <neilc(at)samurai(dot)com> writes:
> Dag-Erling Smørgrav wrote:
> > It doesn't stress the system anywhere near enough to reveal bugs in,
> > say, the shared memory or semaphore code.
> I agree -- I think we definitely need more tests for the concurrent
> behavior of the system.

Quite, but in the meantime, a good benchmark should stress the system
enough to cause crashes, lockups or at least incorrect results if a
bug is introduced in the shared memory or semaphore code, and will
definitely reveal any slowdowns introduced by new code, so my question
is: where can I find a good benchmark for PostgreSQL? Note that I
don't care about comparing PostgreSQL to other RDBMSes; I just want to
a) test PostgreSQL under high concurrent load and b) if possible,
measure the performance impact of a patch.

DES
--
Dag-Erling Smørgrav - des(at)des(dot)no

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