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From: Tom Lane <tgl@sss.pgh.pa.us>
To: A J <s5aly@yahoo.com>
Cc: Kevin Grittner <Kevin.Grittner@wicourts.gov>
Cc: Scott Marlowe <scott.marlowe@gmail.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: Confused by 'timing' results
Date: Thu, 02 Sep 2010 15:03:33 -0400
Message-ID: <6300.1283454213@sss.pgh.pa.us> (raw)
In-Reply-To: <825153.47733.qm@web120009.mail.ne1.yahoo.com>
References: <788866.21140.qm@web120020.mail.ne1.yahoo.com>
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	<19320.56933.qm@web120013.mail.ne1.yahoo.com>
	<AANLkTi=6k6AbmBcqkVCKgNSiogVfQmP+iOC8FgA6+e5J@mail.gmail.com>
	<529329.89885.qm@web120007.mail.ne1.yahoo.com>
	<4C7F8F2A0200002500035037@gw.wicourts.gov>
	<294404.58402.qm@web120007.mail.ne1.yahoo.com>
	<27124.1283450803@sss.pgh.pa.us>
	<825153.47733.qm@web120009.mail.ne1.yahoo.com>

A J <s5aly@yahoo.com> writes:
> The performance as seen from the clients dropped substantially after turning on 
> the extra logging. The numbers were real but the performance dropped 
> significantly.

> All the log related settings in postgresql.conf are below:

Hmm, what about logging_collector?  (Or it might be called
redirect_stderr, depending on which PG version this is.)
If it's currently off, see whether turning it on improves matters.

			regards, tom lane



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