Re: Performance Tuning Document?
От | Justin Clift |
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Тема | Re: Performance Tuning Document? |
Дата | |
Msg-id | 3CBE32CB.EF034972@postgresql.org обсуждение исходный текст |
Ответ на | Re: Performance Tuning Document? (Bruce Momjian <pgman@candle.pha.pa.us>) |
Список | pgsql-general |
Bruce Momjian wrote: > <snip> > > I have added this to my performance paper: > > As a start for tuning, use 25% of ram for cache size, and 2-4% for sort > size. Increase if no swapping, and decrease to prevent swapping. Of > course, if the frequently accessed tables already fit in the cache, > continuing to increase the cache size no longer dramatically improves > performance. That's pretty cool. Reckon you should add in a good and clear example for people though, just to make it 100% clear in their heads. :-) Regards and best wishes, Justin Clift > -- > Bruce Momjian | http://candle.pha.pa.us > pgman@candle.pha.pa.us | (610) 853-3000 > + If your life is a hard drive, | 830 Blythe Avenue > + Christ can be your backup. | Drexel Hill, Pennsylvania 19026 > > ---------------------------(end of broadcast)--------------------------- > TIP 6: Have you searched our list archives? > > http://archives.postgresql.org -- "My grandfather once told me that there are two kinds of people: those who work and those who take the credit. He told me to try to be in the first group; there was less competition there." - Indira Gandhi
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