Messages in this thread | | | From | KOSAKI Motohiro <> | Subject | Re: [PATCH-RFC] cfq: Disable low_latency by default for 2.6.32 | Date | Fri, 27 Nov 2009 13:36:20 +0900 (JST) |
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> Signed-off-by: Mel Gorman <mel@csn.ul.ie> > --- > block/cfq-iosched.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c > index aa1e953..dc33045 100644 > --- a/block/cfq-iosched.c > +++ b/block/cfq-iosched.c > @@ -2543,7 +2543,7 @@ static void *cfq_init_queue(struct request_queue *q) > cfqd->cfq_slice[1] = cfq_slice_sync; > cfqd->cfq_slice_async_rq = cfq_slice_async_rq; > cfqd->cfq_slice_idle = cfq_slice_idle; > - cfqd->cfq_latency = 1; > + cfqd->cfq_latency = 0; > cfqd->hw_tag = 1; > cfqd->last_end_sync_rq = jiffies; > return cfqd;
Great. Probably we can reenable this feature at 2.6.33. but there isn't any reason to take any risk at 2.6.32. i.e. This simple disabling is best. I like this.
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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