Re: Configuring PostgreSQL to minimize impact of checkpoints

Bruce Momjian <pgman@candle.pha.pa.us>

From: Bruce Momjian <pgman@candle.pha.pa.us>
To: jao@geophile.com
Cc: pgsql-performance@postgresql.org
Date: 2004-05-10T19:09:32Z
Lists: pgsql-performance
jao@geophile.com wrote:
> 4. I understand that a "background writer" is being contemplated for
> 7.5.  Will that replace or augment the checkpoint process?  Any
> comments on how that work will apply to my problem would be
> appreciated. I wouldn't mind seeing the average performance,
> (without the spikes) go up -- let's say -- 10%, in exchange for
> more uniform performance. These spikes are a real problem.

The background writer is designed to address your specific problem.  We
will stil checkpoint, but the spike should be greatly minimized.

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