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[PATCH] io/storage: Documentation update to as-iosched.txt

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Documentation update, adding references to CFQ scheduler and to another
document about selecting IO Schedulers.

Signed-off-by: Filipe Lautert <filipe@icewall.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Filipe 2006-12-06 20:36:04 -08:00 committed by Linus Torvalds
parent 593be07ae8
commit 49033c8184
1 changed files with 4 additions and 2 deletions
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6
Documentation/block/as-iosched.txt
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@ -24,8 +24,10 @@ very similar behavior to the deadline IO scheduler.
Selecting IO schedulers
-----------------------
To choose IO schedulers at boot time, use the argument 'elevator=deadline'.
'noop' and 'as' (the default) are also available. IO schedulers are assigned
globally at boot time only presently.
'noop', 'as' and 'cfq' (the default) are also available. IO schedulers are
assigned globally at boot time only presently. It's also possible to change
the IO scheduler for a determined device on the fly, as described in
Documentation/block/switching-sched.txt.
Anticipatory IO scheduler Policies