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[V2,05/10] block, bfq: align min and default weights with the old cfq default

Message ID 20181119103424.3853-6-paolo.valente@linaro.org (mailing list archive)
State New, archived
Headers show
Series unify the interface of the proportional-share policy in blkio/io | expand

Commit Message

Paolo Valente Nov. 19, 2018, 10:34 a.m. UTC 
From: Angelo Ruocco <angeloruocco90@gmail.com>

bfq exposes a cgroup attribute, weight, with the same meaning as that
exposed by cfq.

This commit changes bfq default and min weights to match the ones set
by cfq (before legacy blk was removed).

Signed-off-by: Angelo Ruocco <angeloruocco90@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
---
 block/bfq-iosched.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index 77651d817ecd..249d8128d3ee 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -22,13 +22,13 @@ 
 #define BFQ_IOPRIO_CLASSES	3
 #define BFQ_CL_IDLE_TIMEOUT	(HZ/5)
 
-#define BFQ_MIN_WEIGHT			1
+#define BFQ_MIN_WEIGHT			10
 #define BFQ_MAX_WEIGHT			1000
 #define BFQ_WEIGHT_CONVERSION_COEFF	10
 
 #define BFQ_DEFAULT_QUEUE_IOPRIO	4
 
-#define BFQ_WEIGHT_LEGACY_DFL	100
+#define BFQ_WEIGHT_LEGACY_DFL	500
 #define BFQ_DEFAULT_GRP_IOPRIO	0
 #define BFQ_DEFAULT_GRP_CLASS	IOPRIO_CLASS_BE