Re: Bufer cache replacement LRU algorithm?
От | Kenneth Marshall |
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Тема | Re: Bufer cache replacement LRU algorithm? |
Дата | |
Msg-id | 20101103165216.GC27429@aart.is.rice.edu обсуждение исходный текст |
Ответ на | Bufer cache replacement LRU algorithm? (Mladen Gogala <mladen.gogala@vmsinfo.com>) |
Ответы |
Re: Bufer cache replacement LRU algorithm?
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Список | pgsql-performance |
Mladen, You would need to check the mailing lists. The release notes have it as being a clock sweep algorithm starting in version 8. Then additional changes were added to eliminate the cache blowout caused by a sequential scan and by vacuum/autovacuum. I do not believe that there are any parameters available other than total size of the pool and whether sequential scans are synchronized. Regards, Ken On Wed, Nov 03, 2010 at 12:35:33PM -0400, Mladen Gogala wrote: > Where can I find the documentation describing the buffer replacement > policy? Are there any parameters governing the page replacement policy? > > -- > Mladen Gogala Sr. Oracle DBA > 1500 Broadway > New York, NY 10036 > (212) 329-5251 > http://www.vmsinfo.com The Leader in Integrated Media Intelligence > Solutions > > > > > -- > Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-performance >
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