Re: I have a fusion IO drive available for testing

From: Jeff
Subject: Re: I have a fusion IO drive available for testing
Date: ,
Msg-id: 6CB2CBFD-0A46-4889-908A-BDB93F6F8D3D@torgo.978.org
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In response to: I have a fusion IO drive available for testing  (Dave Cramer)
List: pgsql-performance

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I have a fusion IO drive available for testing  (Dave Cramer, )
 Re: I have a fusion IO drive available for testing  (Luke Lonergan, )
 Re: I have a fusion IO drive available for testing  ("Kenny Gorman", )
 Re: I have a fusion IO drive available for testing  (Jeff, )
 Re: I have a fusion IO drive available for testing  (, )
  Re: I have a fusion IO drive available for testing  (Jeff, )
  Re: I have a fusion IO drive available for testing  (David Rees, )
   Re: I have a fusion IO drive available for testing  (Dave Cramer, )
    Re: I have a fusion IO drive available for testing  (Craig James, )
 Re: I have a fusion IO drive available for testing  (Chris Browne, )

On Mar 26, 2009, at 8:47 AM, Dave Cramer wrote:

> So far using dd I am seeing around 264MB/s on ext3, 335MB/s on ext2
> write speed. So the question becomes what is the best filesystem for
> this drive?
>
> Anyone want me to run anything on it ?
>
> Dave


I'd be more interested in the random io numbers.

You can do some tests with pgiosim (avail on pgfoundry) to sort-of
simulate an index scan. It just seeks and reads. It can also randomly
write and or fsync.

I'd be interested in seeing numbers for 1 proc and 10 on the fusionIO.
You have to make some file(s) for it to use first (I usually use dd to
do that, and make sure it is at least 2xRAM in size)



--
Jeff Trout <>
http://www.stuarthamm.net/
http://www.dellsmartexitin.com/





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