From: Rudi Starcevic <tech@wildcash.com>
To: pgsql-performance@postgresql.org
Subject: Re: VACUUM killing my CPU
Date: Wed, 10 May 2006 14:18:15 +1000
Message-ID: <44616987.3030900@wildcash.com> (raw)
In-Reply-To: <200605092108.33329@hal.medialogik.com>
References: <1147167937.749400.182820@u72g2000cwu.googlegroups.com>
<200605092108.33329@hal.medialogik.com>
Hi,
>>What I am worry about is "93.5% wa" ...
>>
>>Could someone explain me what is the VACUUM process waiting for ?
>>
>
>
> Disk I/O.
>
CPU
wa: Time spent waiting for IO. Prior to Linux 2.5.41, shown as zero.
Just a little more info to help understand what Alan has pointed out.
Your CPU processes are waiting on the HDD ...
HTH
--
Regards,
Rudi
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: tech@wildcash.com
Subject: Re: VACUUM killing my CPU
In-Reply-To: <44616987.3030900@wildcash.com>
* 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