Re: Block I/O Schedulers: Can they be made selectable/device? @runtime?

From: Linda Walsh
Date: Sun Mar 26 2006 - 22:22:23 EST


Valdis.Kletnieks@xxxxxx wrote:
Hasn't been for quite some time. From my /etc/rc.local:
Great...the file "Documentation/as_iosched.txt" is apparently
out of date.
echo cfq > /sys/block/hda/queue/scheduler
echo noop > /sys/block/hdb/queue/scheduler

(hda is a real disk with ext3 partitions on it, hdb is a DVD/CD/RW that almost
always has exactly one process reading or writing to it at a given time, so doing
things in the order requested is just fine).

Simple enough? ;)
---
Sounds fine. I don't suppose it's too much to ask, but where should
should I have found the updated information? :-)

-l



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