>>> 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= Does this mean I need to add "elevator=deadline" to grub.conf? Is there a way to make the change without rebooting? Matt