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From: Josh Berkus <josh@agliodbs.com>
To: pgsql-performance@postgresql.org
Subject: Re: High CPU usage / load average after upgrading to Ubuntu 12.04
Date: Mon, 18 Feb 2013 16:19:19 -0800
Message-ID: <5122C507.7060303@agliodbs.com> (raw)
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So, our drop in performance is now clearly due to pathological OS
behavior during checkpoints.  Still trying to pin down what's going on,
but it's not system load; it's clearly related to the IO system.

Anyone else see this?  I'm getting it both on 3.2 and 3.4.  We're using
LSI Megaraid.


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


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