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[PATCH] cfq-iosched: check busy queues before deciding we are idle
authorJens Axboe <axboe@suse.de>
Thu, 1 Jun 2006 08:07:26 +0000 (10:07 +0200)
committerJens Axboe <axboe@suse.de>
Thu, 1 Jun 2006 08:07:26 +0000 (10:07 +0200)
commit8d2c6cbb6edb28699c51da451ab9fd1ca990af4e
tree58ba74a2f8e0edce59c770c74d019d4e1e3c98fdtree | snapshot
parenta7856bf3ef553171d5a6f9f0dac81c18af3bd9d9commit | diff
[PATCH] cfq-iosched: check busy queues before deciding we are idle

For just one busy queue (like async write out), we often overlooked
that we could queue more io and decided we were idle instead. This causes
us quite a bit of performance loss.

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