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Re: Question regarding performance (large objects involved)

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Mark Kirkwood <markir(at)paradise(dot)net(dot)nz>
Cc: u15074 <u15074(at)hs-harz(dot)de>, pgsql-general(at)postgresql(dot)org
Subject: Re: Question regarding performance (large objects involved)
Date: 2003-06-26 13:45:48
Message-ID: 23851.1056635148@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-general
Mark Kirkwood <markir(at)paradise(dot)net(dot)nz> writes:
> Could be the the database is checkpointing then.

Or the system 'syncer' process woke up and wrote a bunch of pages.
If the interval between pauses doesn't vary when you change
checkpoint_timeout and checkpoint_segments, then I'd blame the syncer
(or possibly some other external activity).

			regards, tom lane

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