19 Jun
2008
19 Jun
'08
6:04 p.m.
On Thu, 19 Jun 2008 at 10:55am, Florin Andrei wrote
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:
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.
I'd be interested in a way of telling from within the OS whether or not MWI is enabled...
--
Joshua Baker-LePain
QB3 Shared Cluster Sysadmin
UCSF