From: Jens Axboe <jens.axboe@oracle.com>
To: linux-kernel@vger.kernel.org
Cc: Jens Axboe <jens.axboe@oracle.com>
Subject: [PATCH 9/15] cfq-iosched: slice offset should take ioprio into account
Date: Tue, 24 Apr 2007 10:15:37 +0200 [thread overview]
Message-ID: <11774025432255-git-send-email-jens.axboe@oracle.com> (raw)
In-Reply-To: <11774025432481-git-send-email-jens.axboe@oracle.com>
Use the max_slice-cur_slice as the multipler for the insertion offset.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
block/cfq-iosched.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index f86ff4d..251131a 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -442,7 +442,8 @@ static unsigned long cfq_slice_offset(struct cfq_data *cfqd,
/*
* just an approximation, should be ok.
*/
- return ((cfqd->busy_queues - 1) * cfq_prio_slice(cfqd, 1, 0));
+ return (cfqd->busy_queues - 1) * (cfq_prio_slice(cfqd, 1, 0) -
+ cfq_prio_slice(cfqd, cfq_cfqq_sync(cfqq), cfqq->ioprio));
}
/*
--
1.5.1.1.190.g74474
next prev parent reply other threads:[~2007-04-24 8:22 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-24 8:15 [PATCH 0/15] CFQ IO scheduler patch series Jens Axboe
2007-04-24 8:15 ` [PATCH 1/15] cfq-iosched: improve preemption for cooperating tasks Jens Axboe
2007-04-24 8:15 ` [PATCH 2/15] cfq-iosched: development update Jens Axboe
2007-04-24 8:15 ` [PATCH 3/15] cfq-iosched: minor updates Jens Axboe
2007-04-24 8:15 ` [PATCH 4/15] cfq-iosched: rework the whole round-robin list concept Jens Axboe
2007-04-24 8:15 ` [PATCH 5/15] cfq-iosched: speed up rbtree handling Jens Axboe
2007-04-25 15:59 ` Alan D. Brunelle
2007-04-25 17:15 ` Jens Axboe
2007-04-25 17:50 ` Jens Axboe
2007-04-25 18:08 ` Jens Axboe
2007-04-26 14:28 ` Alan D. Brunelle
2007-04-26 15:46 ` Jens Axboe
2007-04-24 8:15 ` [PATCH 6/15] cfq-iosched: sort RT queues into the rbtree Jens Axboe
2007-04-24 8:15 ` [PATCH 7/15] cfq-iosched: sort IDLE " Jens Axboe
2007-04-24 8:15 ` [PATCH 8/15] cfq-iosched: style cleanups and comments Jens Axboe
2007-04-24 8:15 ` Jens Axboe [this message]
2007-04-24 8:15 ` [PATCH 10/15] cfq-iosched: get rid of ->cur_rr and ->cfq_list Jens Axboe
2007-04-24 8:15 ` [PATCH 11/15] cfq-iosched: don't pass unused preemption variable around Jens Axboe
2007-04-24 8:15 ` [PATCH 12/15] cfq-iosched: get rid of ->dispatch_slice Jens Axboe
2007-04-24 8:15 ` [PATCH 13/15] cfq-iosched: never allow an async queue idling Jens Axboe
2007-04-24 8:15 ` [PATCH 14/15] cfq-iosched: improve sync vs async workloads Jens Axboe
2007-04-24 8:15 ` [PATCH 15/15] cfq-iosched: tighten queue request overlap condition Jens Axboe
2007-04-25 14:42 ` [PATCH 0/15] CFQ IO scheduler patch series Alan D. Brunelle
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