Re: preloading indexes - Mailing list pgsql-performance

From
Subject Re: preloading indexes
Date
Msg-id 20041103191247.GFZT27576.fed1rmmtao07.cox.net@CYGNUS
Whole thread Raw
In response to Re: preloading indexes  ("Matt Clark" <matt@ymogen.net>)
Responses Re: preloading indexes  (Andrew Sullivan <ajs@crankycanuck.ca>)
List pgsql-performance

That’s correct – I’d like to be able to keep particular indexes in RAM available all the time

 

The best way to get all the stuff needed by a query into RAM is to run the query.  Is it more that you want to 'pin' the data in RAM so it doesn't get overwritten by other queries?

 

I am working with some pretty convoluted queries that work very slowly the first time they’re called but perform fine on the second call. I am fairly certain that these differences are due to the caching. Can someone point me in a direction that would allow me to pre-cache the critical indexes?

pgsql-performance by date:

Previous
From: patrick ~
Date:
Subject: vacuum analyze slows sql query
Next
From: Doug Y
Date:
Subject: Re: vacuum analyze slows sql query