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. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073