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Re: I have a fusion IO drive available for testing

From: Jeff <threshar(at)torgo(dot)978(dot)org>
To: Dave Cramer <pg(at)fastcrypt(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: I have a fusion IO drive available for testing
Date: 2009-03-27 17:23:24
Message-ID: 6CB2CBFD-0A46-4889-908A-BDB93F6F8D3D@torgo.978.org (view raw or flat)
Thread:
Lists: pgsql-performance
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 <jeff(at)jefftrout(dot)com>
http://www.stuarthamm.net/
http://www.dellsmartexitin.com/




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