trying to change IO scheduler

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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 **


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