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New Filesystem?

One suggestion from another list (I've shared your pain) is to test an alternate filesystem. I'd think this would have minimal impact for a database, as you're largely pumping data in and out of a small number of files, but it's possible. See [link|http://www.softorchestra.com/mailman/listinfo/linux-consultants|http://www.softorchestra.com/mailman/listinfo/linux-consultants] for details.

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Reiserfs does better than ext2fs in some circumstances. The SGI 64-way system featured in LJ a month or two back used SGI's journaling FS, don't remember if that's XFS or JFS. Performance over Reiser and ext3 was stunning. Might give that a shot.

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Also: RAID5 probably slows you. RAID 1-0 is a better performance bet, and offers redundancy.

--\r\n
Karsten M. Self [link|mailto:kmself@ix.netcom.com|kmself@ix.netcom.com]\r\n
[link|http://kmself.home.netcom.com/|http://kmself.home.netcom.com/]\r\n
What part of "gestalt" don't you understand?\r\n
[link|http://twiki.iwethey.org/twiki/bin/view/Main/|TWikIWETHEY] -- an experiment in collective intelligence. Stupidity. Whatever.\r\n
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   Keep software free.     Oppose the CBDTPA.     Kill S.2048 dead.\r\n[link|http://www.eff.org/alerts/20020322_eff_cbdtpa_alert.html|http://www.eff.org/alerts/20020322_eff_cbdtpa_alert.html]\r\n
New Nah, CPU
The RAID 5 and/or ext3 had no overhead in this test. It was almost pure CPU spin.

Also, XFS (SGI's) is a nono right now for us. Until we move off Red Hat (I believe we will withing 6 months) we can't use it.
     SAB-DB review - (broomberg) - (5)
         theres a reason they call it SAP - (boxley)
         Filesystem? - (kmself) - (1)
             Nah, CPU - (broomberg)
         What do you mean by "another Interbase"? Just wondering... -NT - (CRConrad) - (1)
             "another Interbase" - (broomberg)

Like many lawyers, he's overly fond of argument, even when in agreement. Not that anyone here would be into that...
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