Re: reindex/vacuum locking/performance?

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От Matt Clark
Тема Re: reindex/vacuum locking/performance?
Дата
Msg-id LFEIJBEOKGPDHCEMDGNFEEOECFAA.matt@ymogen.net
обсуждение исходный текст
Ответ на Re: reindex/vacuum locking/performance?  (Josh Berkus <josh@agliodbs.com>)
Ответы Re: reindex/vacuum locking/performance?  ("Matt Clark" <matt@ymogen.net>)
Список pgsql-performance
> Also, if you find that you need to run VACUUM FULL often, then
> you need to
> raise your max_fsm_pages.

Yes and no.  If it's run often enough then the number of tracked pages
shouldn't need to be raised, but then again...

...max_fsm_pages should be raised anyway.  I'm about to reclaim a Pentium
166 w/ 64MB of RAM from a friend I lent it to _many_ years ago, and I
suspect PG would run happily on it as configured by default.  Set it to at
least 50,000 I say.  What do you have to lose, I mean if they're not free
then they're not tracked in the FSM right?

Of course if anyone knows a reason _not_ to raise it then I'm all ears!

Matt


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>  Aglio Database Solutions
>  San Francisco
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