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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)
commit25776e3594f841b7fae7b33ebecf009a0a55bed1
tree689dcf37ba781ad627ae01be4fcb6f5414f67c1btree | snapshot
parent12e9fddd6eb827937fcaac8ac7712c7303898b1fcommit | 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
DSM-G600 Linux 2.6