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[PATCH] cfq-iosched: Detect hardware queueing
authorJens Axboe <axboe@suse.de>
Thu, 1 Jun 2006 08:12:26 +0000 (10:12 +0200)
committerJens Axboe <axboe@suse.de>
Thu, 1 Jun 2006 08:12:26 +0000 (10:12 +0200)
commit3787619027396e320eeb174ad09c1e0c0ad2c42c
tree689dcf37ba781ad627ae01be4fcb6f5414f67c1btree | snapshot
parent0e53dc97d9ca18cdcfc4a5a2e26b24f41421679bcommit | diff
[PATCH] cfq-iosched: Detect hardware queueing

If the hardware is doing real queueing, decide that it's worthless to
idle the hardware. It does reasonable simultaneous io in that case
anyways, and the idling hurts some work loads.

Signed-off-by: Jens Axboe <axboe@suse.de>
block/cfq-iosched.c diff | blob | history
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