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From: KONDO Mitsumasa <kondo.mitsumasa@lab.ntt.co.jp>
To: Heikki Linnakangas <hlinnakangas@vmware.com>
Cc: Greg Smith <greg@2ndQuadrant.com>
Cc: didier <did447@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: Improvement of checkpoint IO scheduler for stable transaction responses
Date: Mon, 22 Jul 2013 19:14:10 +0900
Message-ID: <51ED05F2.3090400@lab.ntt.co.jp> (raw)
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(2013/07/21 4:37), Heikki Linnakangas wrote:
> Mitsumasa-san, since you have the test rig ready, could you try the attached
> patch please? It scans the buffer cache several times, writing out all the dirty
> buffers for segment A first, then fsyncs it, then all dirty buffers for segment
> B, and so on. The patch is ugly, but if it proves to be helpful, we can spend the
> time to clean it up.
Thank you! It is interesting code, I test it.

By the way, my campany's colleague helps us to testing. If you have other idea, 
please send me patch or methods.

Best regards,
--
Mitsumasa KONDO


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  Subject: Re: Improvement of checkpoint IO scheduler for stable transaction responses
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