Hi folks, I've been trying to play with this new I/O scheduler thing. I'd like to try 'as' (anticipatory scheduler) and probably some more to see which one performs better in my desktop. I am running FC3 with a stock 2.6.10 kernel, the relevant .config lines are these: CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y And also I remembered to activate elevator=as in grub.conf: root (hd0,1) kernel /boot/vmlinuz-2.6.10ffp ro root=/dev/hda2 selinux=0 elevator=as rhgb initrd /boot/initrd-2.6.10ffp.img BUT, i think it has not worked as I wanted, the active scheduler is 'noop': # cat /sys/block/hda/queue/scheduler [noop] And also the running config is not exactly as desired: # zcat /proc/config.gz | grep SCHED CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=m CONFIG_IOSCHED_DEADLINE=m CONFIG_IOSCHED_CFQ=m I don't know what I've done wrong. If some kernel guru is around I'd like some advice. Thanks a lot. -- ** las máquinas son amigas **