Re: Limit I/O bandwidth of a certain backend - Mailing list pgsql-performance

From Bryan Murphy
Subject Re: Limit I/O bandwidth of a certain backend
Date
Msg-id 7fd310d10905051754k61e602e1i354285e31391c03c@mail.gmail.com
Whole thread Raw
In response to Limit I/O bandwidth of a certain backend  (Vlad Arkhipov <arhipov@dc.baikal.ru>)
List pgsql-performance
On Tue, May 5, 2009 at 2:31 AM, Vlad Arkhipov <arhipov@dc.baikal.ru> wrote:
> Is there a way to limit I/O bandwidth/CPU usage of a certain backend? It
> seems that ionice/renice makes no sense because of bgwriter/WAL writer
> processes are not a part of a backend. I have a periodic query (every
> hour) that make huge I/O load and should run in background. When this
> query runs all other fast queries slow down dramatically.

Could you use something like slony to replicate the needed data to a
secondary database and run the query there?

Bryan

pgsql-performance by date:

Previous
From: Matthew Wakeling
Date:
Subject: Re: [HACKERS] high shared buffer and swap
Next
From: Greg Smith
Date:
Subject: Re: Limit I/O bandwidth of a certain backend