Re: Is there a meaningful benchmark? - Mailing list pgsql-general

From Will Rutherdale (rutherw)
Subject Re: Is there a meaningful benchmark?
Date
Msg-id 50A8E1F8D9122546A7F67134915EDB7A3B8E3A@xmb-rtp-21a.amer.cisco.com
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In response to Re: Is there a meaningful benchmark?  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
Point taken.

Thank you for the help.

-Will


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

"Will Rutherdale (rutherw)" <rutherw@cisco.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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