Jim Perrin wrote:
On Thu, Jun 19, 2008 at 1:55 PM, Florin Andrei <florin@xxxxxxxxxxxxxxx> 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:You are comparing the wrong kernels. The bz321111 kernel was for an NFS related bug and has no 3 impact on 3ware performance. The redhat bug report has the kernels built for 3ware performance. Once 5.2 is rolled out, Johnny Hughes has stated he would consider building a kernel for the 444759 bug.
OK, there is a kernel for this in the Testing repo , the version is: kernel-2.6.18-92.1.1.el5.bz444759This kernel is compiled on the 5.2 tree (which should be released before Tuesday 6/24). It might also work OK on CentOS-5.1 but I have not tested it on 5.1
http://dev.centos.org/centos/5/testing/ Thanks, Johnny Hughes
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