Please help with Simon's Cyrus RPMS (2.2.8), SMP, and really slow performance

[mgrommet at sigmarep.com]

Here are the bonnie results...
This is the "beefy" machine

              -------Sequential Output-------- ---Sequential Input--
--Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec
%CPU
          100 12991 100.0 105984 99.4 13171  8.2 15454 99.8 536628 99.6
480.1  2.5



This is the puny machine:


              -------Sequential Output-------- ---Sequential Input--
--Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec
%CPU
          100  6021 98.1 91309 25.9  4779  1.0  6176 99.5 1457838 99.7
50186.3 62.7







> Hm, you said SCSI Raid - that can mean alot.
> Could you run a good old bonnie on both boxes and compare the numbers?
> One thing that comes to mind when I hear such things is a system with
> disk write cache disabled. Now, if you have a raid controller without
> battery backed cache, your vendor will hopefully disable write cache on
> the controller and also disable WCE bit on the drives. That way it will
> perform very poorly but be as secure as possible.
>
> Simon
>


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