Re: Add accurate option to pgbench

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Mitsumasa KONDO <kondo(dot)mitsumasa(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Add accurate option to pgbench
Date: 2013-11-02 17:21:06
Message-ID: 11889.1383412866@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> writes:
> However I think that part of this interesting checklist and discussion
> could make it to some "caveat" section about reproducible performance
> measures in pgbench documentation, though?

+1. There's already a section of advice about how to get reproducible
numbers from pgbench --- we could certainly extend that to cover more
things.

BTW, even if we were going to put code for these things into pgbench,
driving them all off a single switch would be very bad design.
I see no reason to think that all and only these issues would be
appropriate to control for any particular user of pgbench.

regards, tom lane

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Peter Eisentraut 2013-11-02 18:25:17 gcc 4.8 compiler warning in ecpg check
Previous Message Fabien COELHO 2013-11-02 16:32:19 Re: Add accurate option to pgbench