Re: reindex/vacuum locking/performance?

From: Andrew Sullivan <andrew(at)libertyrms(dot)info>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: reindex/vacuum locking/performance?
Date: 2003-10-05 14:34:31
Message-ID: 20031005143431.GC3441@libertyrms.info
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: 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

--
----
Andrew Sullivan 204-4141 Yonge Street
Afilias Canada Toronto, Ontario Canada
<andrew(at)libertyrms(dot)info> M2P 2A8
+1 416 646 3304 x110

In response to

Responses

Browse pgsql-performance by date

  From Date Subject
Next Message Matt Clark 2003-10-05 16:46:21 Re: reindex/vacuum locking/performance?
Previous Message Bruce Momjian 2003-10-05 13:36:40 Re: COUNT(*) again (was Re: [HACKERS] Index/Function organized