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Re: performance on new linux box - Mailing list pgsql-performance

From David Boreham
Subject Re: performance on new linux box
Date
Msg-id 4C362C1C.7060509@boreham.org
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In response to Re: performance on new linux box  (Ryan Wexler <ryan@iridiumsuite.com>)
List pgsql-performance
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On 7/8/2010 1:47 PM, Ryan Wexler wrote:
> Thanks for the explanations that makes things clearer.  It still
> amazes me that it would account for a 5x change in IO.

The buffering allows decoupling of the write rate from the disk rotation
speed.
Disks don't spin that fast, at least not relative to the speed the CPU
is running at.

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