Re: High CPU usage / load average after upgrading to Ubuntu 12.04

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz>
Cc: postgres performance list <pgsql-performance(at)postgresql(dot)org>
Subject: Re: High CPU usage / load average after upgrading to Ubuntu 12.04
Date: 2013-02-19 17:51:16
Message-ID: 5123BB94.7030603@agliodbs.com
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On 02/18/2013 08:28 PM, Mark Kirkwood wrote:
> Might be worth looking at your vm.dirty_ratio, vm.dirty_background_ratio
> and friends settings. We managed to choke up a system with 16x SSD by
> leaving them at their defaults...

Yeah? Any settings you'd recommend specifically? What did you use on
the SSD system?

--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

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