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I am having problem with the IO scheduler. Can anyone pls help?
here is an excerpt of my lilo.conf
image = /boot/vmlinuz26113
initrd = /boot/initrd.gz
append = "elevator=deadline"
root = /dev/hda1
label = kernel_2.6.11.3
read-only
# cat /sys/block/hda/queue/scheduler
noop [anticipatory] deadline cfq
how come deadline is not being chosen??
This works.
# echo deadline > /sys/block/hda/queue/scheduler
# cat /sys/block/hda/queue/scheduler
noop anticipatory [deadline] cfq
am i missing anything?? thanks in advance
I guess deadline just isn't a
I guess deadline just isn't always the best choice. (For servers under heavy load I'm told it is, but what about other situations?) If it is, why did you include the others in your kernel?
Err, oh, never mind, didn't r
Err, oh, never mind, didn't realy your whole post. :-(
(But what's wrong with manually setting the scheduler in your init scripts?)
nothing wrong with that. so w
nothing wrong with that. so why put elevator as a kernel option if it can't be used?
Works fine with Grub, Geez it
Works fine with Grub, Geez its 2005 you know. ;)
B.T.W. Did you run lilo after
B.T.W. Did you run lilo after making changes to the config file?
It can't read minds like Grub, you know. ;)
i saw the same problem and
i saw the same problem and solved it as follows :-
recompile your kernel and make sure you have the fol. set in your .config file :-
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
so u can choose between diff schedulers next time..
dinamic use of io scheduler
I have a question:
if I have all three io scheduler compiled in the kernel, is possible to use all three dinamically or the kernel select only one?
thanks
Luca
There is a script to change t
There is a script to change the scheduler:
http://vivid.dat.pl/fallow/pub/scheduler_change_script
I'm not sure if it works with vanilla kernels but it does with my ck-patched one.
I have same problem regarding
I have same problem regarding the dynamic selection of IO schedulers !the link doesn't work! ....any other suggestions regarding?