Re: [GENERAL] Buglist
От | Bruce Momjian |
---|---|
Тема | Re: [GENERAL] Buglist |
Дата | |
Msg-id | 200309050254.h852sTG21115@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [GENERAL] Buglist (Jan Wieck <JanWieck@Yahoo.com>) |
Список | pgsql-hackers |
Jan Wieck wrote: > Tom Lane wrote: > > > Jan Wieck <JanWieck@Yahoo.com> writes: > >> Okay, my proposal would be to have a VACUUM mode where it tells the > >> buffer manager to only return a page if it is already in memory, and > >> some "not cached" if it would have to read it from disk, and simply skip > >> the page in that case. > > > > Since no such call is available at the OS level, this would only work > > well with very large shared_buffers settings (ie, you try to rely on > > PG shared buffers to the exclusion of kernel disk cache). AFAIK the > > general consensus is that that's not a good way to run Postgres. > > Oh-kay ... so yes Manfred, your RSM is probably the better way. Added to TODO. -- 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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