Re: Is there a meaningful benchmark?

From: "Will Rutherdale (rutherw)" <rutherw(at)cisco(dot)com>
To: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Is there a meaningful benchmark?
Date: 2009-03-20 18:15:22
Message-ID: 50A8E1F8D9122546A7F67134915EDB7A3B8E3A@xmb-rtp-21a.amer.cisco.com
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Point taken.

Thank you for the help.

-Will

-----Original Message-----
From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
Sent: 20 March 2009 12:06
To: Will Rutherdale (rutherw)
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: [GENERAL] Is there a meaningful benchmark?

"Will Rutherdale (rutherw)" <rutherw(at)cisco(dot)com> writes:
> However, keeping the KISS principle in mind, you can create a
benchmark
> that simply sets up a sample database and forks off a bunch of
processes
> to do random updates for an hour, say. Dead simple.

Indeed, and more than likely dead useless. The only benchmark that
really counts is one's live application, which is probably not
update-only and probably has a fairly non-random update pattern too.

What people have been trying to point out to you is that you can
certainly measure *something* with a benchmark test that has no thought
behind it, but it's not clear whether the numbers you come up with will
have any real-world value.

regards, tom lane

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