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Re: High CPU usage / load average after upgrading to Ubuntu 12.04 - Mailing list pgsql-performance

From Josh Berkus
Subject Re: High CPU usage / load average after upgrading to Ubuntu 12.04
Date
Msg-id 5122CCA6.7070904@agliodbs.com
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In response to Re: High CPU usage / load average after upgrading to Ubuntu 12.04  (Jon Nelson <jnelson+pgsql@jamponi.net>)
List pgsql-performance
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> Did you try turning barriers on or off *manually* (explicitly)? With
> LSI and barriers *on* and ext4 I had less-optimal performance. With
> Linux MD or (some) 3Ware configurations I had no performance hit.

They're off in fstab.

/dev/sdd1 on /data type xfs (rw,noatime,nodiratime,nobarrier)


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

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