Message-ID: <51E677E7.6070803@2ndQuadrant.com>
Date: Wed, 17 Jul 2013 06:54:31 -0400
From: Greg Smith <greg@2ndQuadrant.com>
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To: Ants Aasma <ants@cybertec.at>
CC: Heikki Linnakangas <hlinnakangas@vmware.com>,
 PostgreSQL-development <pgsql-hackers@postgresql.org>,
 KONDO Mitsumasa <kondo.mitsumasa@lab.ntt.co.jp>
Subject: Re: Improvement of checkpoint IO scheduler for stable transaction
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On 7/16/13 11:36 PM, Ants Aasma wrote:
> As you know running a full suite of write benchmarks takes a very long
> time, with results often being inconclusive (noise is greater than
> effect we are trying to measure).

I didn't say that.  What I said is that over a full suite of write 
benchmarks, the effect of changes like this has always averaged out to 
zero.  You should try it sometime.  Then we can have a useful discussion 
of non-trivial results instead of you continuing to tell me I don't 
understand things.

-- 
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.com


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