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RE: 10G and UFS - long write times

From: <oracle-l-bounce_at_freelists.org>
Date: Thu, 8 Jun 2006 09:52:07 -0700
Message-ID: <5D2570CAFC98974F9B6A759D1C74BAD0E5A72A@ex2.ms.polyserve.com>

 >>>From a few responses I have I think people are confusing 

>>>what I am actually saying. I am not expecting UFS to be as
>>>fast as SAN. However I am expecting 9i to be the same as 10g
>>>on UFS and that is not what I am seeing. I am looking at 10g
>>>being twice as slow as 9i in the scenario

 There is nothing wrong with your test case. I question what the default OSD behaviour is for direct and async IO on UFS when comparing 9i to 10g? Could it be that 9i on UFS is not doing direct I/O and 10g is? Orders of magnitude comparisons are generally memory vs disk comparisons, right ?

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Received on Thu Jun 08 2006 - 11:52:07 CDT

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