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

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: High CPU usage / load average after upgrading to Ubuntu 12.04
Date: 2013-02-14 23:57:50
Message-ID: 511D79FE.7060705@agliodbs.com
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On 02/14/2013 12:41 PM, Dan Kogan wrote:
> We used scale factor of 3600.
> Yeah, maybe other people see similar load average, we were not sure.
> However, we saw a clear difference right after the upgrade.
> We are trying to determine whether it makes sense for us to go to 11.04 or maybe there is something here we are missing.

Well, I'm seeing a higher system % on CPU than I expect (around 15% on
each core), and a MUCH higher context-switch than I expect (up to 500K).
Is that anything like you're seeing?

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

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