Re: usleep feature for pgbench - Mailing list pgsql-hackers

From Tom Lane
Subject Re: usleep feature for pgbench
Date
Msg-id 22479.1183672472@sss.pgh.pa.us
Whole thread Raw
In response to Re: usleep feature for pgbench  (Alvaro Herrera <alvherre@commandprompt.com>)
List pgsql-hackers
Alvaro Herrera <alvherre@commandprompt.com> writes:
> Tom Lane wrote:
>> Did you check that the observed performance for non-usleep-using scripts
>> didn't change?  If this extra overhead causes a reduction in reported
>> TPS rates it would make it hard to compare older and newer tests.

> I keep wondering, why is that important?  If you want to compare results
> of different PG versions, surely you can run the tests with the newest
> version of pgbench?

It's more about not having to repeat old test cases every time you want
to have numbers comparable to your latest case.
        regards, tom lane


pgsql-hackers by date:

Previous
From: Alvaro Herrera
Date:
Subject: Re: usleep feature for pgbench
Next
From: Greg Smith
Date:
Subject: Re: Bgwriter strategies