Re: increasing shared buffers: how much should be removed from OS filesystem cache?
От | Dave Cramer |
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Тема | Re: increasing shared buffers: how much should be removed from OS filesystem cache? |
Дата | |
Msg-id | E3AD303F-06FE-4034-A176-3F532720A386@fastcrypt.com обсуждение исходный текст |
Ответ на | Re: increasing shared buffers: how much should be removed from OS filesystem cache? ("Merlin Moncure" <mmoncure@gmail.com>) |
Ответы |
Re: increasing shared buffers: how much should be removed
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Список | pgsql-performance |
On 1-Sep-06, at 3:49 PM, Merlin Moncure wrote: > On 01 Sep 2006 19:00:52 +0200, Guillaume Cottenceau <gc@mnc.ch> wrote: >> Hi, >> >> I've been looking at the results from the pg_statio* tables, to >> view the impact of increasing the shared buffers to increase >> performance. >> > > I think 'shared buffers' is one of the most overrated settings from a > performance standpoint. however you must ensure there is enough for > things the server does besides caching. It used to be a bigger deal > than it is in modern versionf of postgresql modern operating systems. > > merlin > So if shared buffers is the most overrated, what do you consider the proper way of tuning ? > ---------------------------(end of > broadcast)--------------------------- > TIP 9: In versions below 8.0, the planner will ignore your desire to > choose an index scan if your joining column's datatypes do not > match >
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