Re: reindex/vacuum locking/performance? - Mailing list pgsql-performance

From Andrew Sullivan
Subject Re: reindex/vacuum locking/performance?
Date
Msg-id 20031005143431.GC3441@libertyrms.info
Whole thread Raw
In response to Re: reindex/vacuum locking/performance?  ("Matt Clark" <matt@ymogen.net>)
Responses Re: reindex/vacuum locking/performance?
List pgsql-performance
On Sun, Oct 05, 2003 at 12:14:24PM +0100, Matt Clark wrote:
> more info on how it clobbers shared_buffers?

Vacuum is like a seqscan.  It touches everything on a table.  So it
doesn't clobber them, but that's the latest data.  It's unlikely your
buffers are big enough to hold your database, unless your database is
small.  So you'll end up expiring potentially useful data in the
buffer.

A

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