pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  

help / color / mirror / Atom feed

From: Tobias Brox <tobias@nordicbet.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Tobias Brox <tobias@nordicbet.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: long running transactions
Date: Tue, 10 Oct 2006 20:43:54 +0200
Message-ID: <20061010184354.GA24098@oppetid.no> (raw)
In-Reply-To: <772.1160504813@sss.pgh.pa.us>
References: <20061010164142.GA5360@oppetid.no>
	<25631.1160498572@sss.pgh.pa.us>
	<20061010170639.GB5360@oppetid.no>
	<25953.1160500192@sss.pgh.pa.us>
	<20061010171304.GC5360@oppetid.no>
	<26123.1160500707@sss.pgh.pa.us>
	<20061010174955.GA284@oppetid.no>
	<528.1160503495@sss.pgh.pa.us>
	<20061010181953.GA7584@oppetid.no>
	<772.1160504813@sss.pgh.pa.us>

[Tom Lane - Tue at 02:26:53PM -0400]
> > autovacuum_vacuum_cost_delay = 500
> > autovacuum_vacuum_cost_limit = 200
> 
> Well, that's going to cause it to sleep half a second after every dozen
> or so page I/Os.  I think you'd be well advised to reduce the delay.

Modified it to 20/250, and it definitively helped.  Sorry for the
list verbosity; I should have been able to resolve this myself already
some 2-3 emails ago :-)  I wanted a "soft" introduction of autovac in
production, and assumed that it was better to begin with too much sleep
than too little!  Well, well.

view thread (14+ messages)

Message-ID: <20061010184354.GA24098@oppetid.no>
Permalink:  ../20061010184354.GA24098@oppetid.no/
Also on:    postgresql.org/message-id/20061010184354.GA24098@oppetid.no

copy link · copy postgr.es

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: tobias@nordicbet.com, tgl@sss.pgh.pa.us
  Subject: Re: long running transactions
  In-Reply-To: <20061010184354.GA24098@oppetid.no>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox