Hard disk bottle neck.

Wojciech Puchar wojtek at wojtek.tensor.gdynia.pl
Sun Sep 28 15:01:28 UTC 2008

> #ifndef MAXDUMPPGS
> I'll update the result. I'll tell you how I go. Maybe sometimes in the next
> fortnight.
> Thanks everyone, thanks Wojciech Puchar,
> Danny

anyway - how your RAID5 is configured? didn't you selected SMALL stripe 

this way - every large read uses 3 disks in parallel, instead of spreading 
multiple reads on multiple disks.

RAID5 performance is high on reads, when configured properly, and when the 
RAID solution is right.

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