Re: Adding more memory = hugh cpu load - Mailing list pgsql-performance

From Ivan Voras
Subject Re: Adding more memory = hugh cpu load
Date
Msg-id j7159t$jhf$1@dough.gmane.org
Whole thread Raw
In response to Re: Adding more memory = hugh cpu load  (Samuel Gendler <sgendler@ideasculptor.com>)
List pgsql-performance
On 11/10/2011 00:02, Samuel Gendler wrote:

> The original question doesn't actually say that performance has gone down,
> only that cpu utilization has gone up. Presumably, with lots more RAM, it is
> blocking on I/O a lot less, so it isn't necessarily surprising that CPU
> utilization has gone up.

It's Linux - it counts IO wait in the load average. Again there are too
little details to be sure of anything, but it is possible that the IO
rate didn't go down.



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