On Dec 9, 2008, at 3:30 AM, Peter Kjellstrom cap@nsc.liu.se wrote:
On Tuesday 09 December 2008, Ross Walker wrote:
On Dec 8, 2008, at 6:51 PM, Matt lm7812@gmail.com wrote:
...
Try setting the scheduler to 'deadline' and see if the queue sizes shrink.
I have googled this and having a bit of trouble figuring how to change it under CentOS 4.
http://www.wlug.org.nz/LinuxIoScheduler
Does not seem to work on CentOS 4.
No raid1? Besides adding redundancy, it can help with read performance. I would probably put the mail on a raid 10 though if I had 4 disks to do so.
I plan on moving to faster disks and RAID 1 down the road. Just has not happened yet.
Setting scheduler is global in C4 it can be set as a kernel option with a scheduler=deadline in grub.
Is that an alias for "elevator=deadline" (which I know works)?
No that was me forgetting the option name.
Thanks Peter, it's elevator= not scheduler=
-Ross