[CentOS] 3ware performance in CentOS

Florin Andrei florin at andrei.myip.org
Thu Jun 19 17:55:07 UTC 2008


Have a look at these pages:

http://www.bofh-hunter.com/2008/06/13/3ware-performance-in-centos/
https://bugzilla.redhat.com/show_bug.cgi?id=444759

I'm comparing the default 5.1 64bit kernel with the patched one posted 
in the bug report (kernel-2.6.18-53.1.21.el5.bz321111.x86_64) and I 
don't quite see any significant difference in write performance for this 
command:

dd if=/dev/zero of=/logs/test bs=100M count=1000

(100GB of data, written in 100MB blocks)

It's a Supermicro server, the motherboard is (according to the stuff 
painted on the mobo itself) Super X7DBI+, Intel Xeon L5420 with 8 cores 
total, 3ware 9650SE using the driver from the manufacturer's site.
I tested 2 disks in a mirror RAID volume.

Results:

kernel		time	speed
======		====	=====
patched		75min	23M/s
original	51min	34M/s
patched		48min	36M/s
original	61min	28M/s

-- 
Florin Andrei

http://florin.myip.org/



More information about the CentOS mailing list