[CentOS] 3ware performance in CentOS

Florin Andrei florin at andrei.myip.org
Thu Jun 19 20:19:24 UTC 2008

Joshua Baker-LePain wrote:
> That's the wrong patched kernel.  You'd need to be using one of the 
> kernels in <http://people.redhat.com/thenzl/kernel/> -- 
> kernel-2.6.18-93.el5.bz444759.x86_64.rpm.

Thanks for setting me right.

Anyway, I did a test with the 2.6.18-93.el5.bz444759 kernel and there's 
no difference: 65 minutes, 27 MB/s. Looks like it doesn't matter which 
kernel I use, at least for this simple test with dd.

I wonder if a test closer to real life, such as reading/writing stuff 
from/to MySQL, would produce different results. I guess there's only one 
way to find out. ;-)

> I'd be interested in a way of telling from within the OS whether or not 
> MWI is enabled...

That would be nice.

Florin Andrei


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