On Wed, Jul 31, 2013 at 9:25 AM, German Becker <german(dot)becker(at)gmail(dot)com>wrote:
> To all whom might be interested, I have an update on this.
> I run some tests on the old production DB which was Posgres 8.3 (and only
> one disk for everything), using pgreplay, running the same queries as the
> 9.1 server.
> Here is the output of iostat for the 8.3 server:
> ...
> Here is the output for 9.1:
> ...
>
What kernel are you running? Could it be related to a recent discussions
about the 3.2 kernel?
http://markmail.org/message/qosngswoy5lqmxlr