Re: Configuring PostgreSQL to minimize impact of checkpoints
От | Bruce Momjian |
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Тема | Re: Configuring PostgreSQL to minimize impact of checkpoints |
Дата | |
Msg-id | 200405101909.i4AJ9Wv09415@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Configuring PostgreSQL to minimize impact of checkpoints (jao@geophile.com) |
Ответы |
Re: Configuring PostgreSQL to minimize impact of checkpoints
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Список | 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
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