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Re: 7.2 is slow?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Hannu Krosing <hannu(at)tm(dot)ee>
Cc: Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: 7.2 is slow?
Date: 2001-12-21 16:00:01
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Lists: pgsql-hackers
Hannu Krosing <hannu(at)tm(dot)ee> writes:
> in order to measure real performance of roughly the _same_ dataset each
> test run did the same total number of transactions 512 with each client 
> doing 512/nr_of_trx.

That means you're only measuring a few transactions per backend (as few
as 4, near the upper end of the scale).  I think the results may say
more about backend-startup transients than true peak throughput.
Could you try it again with a run about ten times that long?

			regards, tom lane

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