RE: [CentOS] Write performance with 3ware 9550

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On Thu, 12 Oct 2006 at 7:58pm, Bowie Bailey wrote

With NCQ off, I get these results:

Version  1.03       ------Sequential Output------ --Sequential Input-
--Random-
                   -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec
%CP
Second          50G           20853   8 41899  11           192713  23 116.9
1

Write performance increased by 2M/s and read performance decreased by 2M/s.

What tweaks have you applied so far?  I would expect a 4-drive array
to be slower than an 8-drive array, but not this much!

What's your StorSave profile set to?

--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University
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