Direct I/O, better performance?

From: Roger Xu <roger_xu_at_dp7uptx.com>
Date: Tue, 19 Oct 2004 14:16:02 -0500
Message-ID: <A6801E8A03316A4DA597866F77A013F702D4F207@irv2kexch01>

Hi,  

We are running Solaris 9 with UFS on Oracle 9.2.0.4.0. We switched to direct I/O and did not see a better performance as far as updating statistics concerned. Why?  

It used to take us 22 hours to update statistics for all tables, but now 31 hours.  

Thanks,
Roger Xu
Database Administrator
Dr Pepper Bottling Company of Texas
(972)721-8337  

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Received on Tue Oct 19 2004 - 14:12:38 CDT