Re: Log levels for checkpoint/bgwriter monitoring

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Greg Smith <gsmith(at)gregsmith(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Log levels for checkpoint/bgwriter monitoring
Date: 2007-03-09 06:43:38
Message-ID: 22147.1173422618@sss.pgh.pa.us
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Greg Smith <gsmith(at)gregsmith(dot)com> writes:
> With the pgbench workload, a substantial percentage of the buffer cache
> ends up pinned.

[ raised eyebrow... ] Prove that. AFAIK it's impossible for the
pgbench queries to pin more than about three or four buffers per backend
concurrently.

regards, tom lane

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