On Tuesday 09 December 2008, Ross Walker wrote: > On Dec 8, 2008, at 6:51 PM, Matt <lm7812@xxxxxxxxx> 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)? /Peter
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