Re: What`s wrong with JFS configuration?

From: Jim Nasby
Subject: Re: What`s wrong with JFS configuration?
Date: ,
Msg-id: 58A76D12-7105-4342-8513-E445736B3631@decibel.org
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In response to: What`s wrong with JFS configuration?  (Paweł Gruszczyński)
Responses: Re: What`s wrong with JFS configuration?  (Cosimo Streppone)
List: pgsql-performance

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What`s wrong with JFS configuration?  (Paweł Gruszczyński, )
 Re: What`s wrong with JFS configuration?  (Heikki Linnakangas, )
  Re: What`s wrong with JFS configuration?  (Dave Cramer, )
 Re: What`s wrong with JFS configuration?  (Paweł Gruszczyński, )
  Re: What`s wrong with JFS configuration?  (Greg Smith, )
 Re: What`s wrong with JFS configuration?  (Chris Browne, )
 Re: What`s wrong with JFS configuration?  (Jim Nasby, )
  Re: What`s wrong with JFS configuration?  (Cosimo Streppone, )
 Re: What`s wrong with JFS configuration?  ("Luke Lonergan", )
 Re: What`s wrong with JFS configuration?  (Jim Nasby, )

On Apr 25, 2007, at 8:51 AM, Paweł Gruszczyński wrote:
> where u6 stores Fedora Core 6 operating system, and u0 stores 3
> partitions with ext2, ext3 and jfs filesystem.

Keep in mind that drives have a faster data transfer rate at the
outer-edge than they do at the inner edge, so if you've got all 3
filesystems sitting on that array at the same time it's not a fair
test. I heard numbers on the impact of this a *long* time ago and I
think it was in the 10% range, but I could be remembering wrong.

You'll need to drop each filesystem and create the next one to get a
fair comparison.
--
Jim Nasby                                            
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)




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