Commit 65752aef authored by Yufen Yu's avatar Yufen Yu Committed by Jens Axboe
Browse files

docs: block: update and fix tiny error for bfq 



The max value of blkio.bfq.weight is 1000, rather than 10000.
And 'weights' have been remove from /sys/block/XXX/queue/iosched.

Signed-off-by: default avatarYufen Yu <yuyufen@huawei.com>
Acked-by: default avatarPaolo Valente <paolo.valente@linaro.org>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 3197d48a

Documentation/block/bfq-iosched.rst

+1 −8
Original line number Diff line number Diff line
@@ -492,13 +492,6 @@ set max_budget to higher values than those to which BFQ would have set 
it with auto-tuning. An alternative way to achieve this goal is to

just increase the value of timeout_sync, leaving max_budget equal to 0.



weights

-------



Read-only parameter, used to show the weights of the currently active

BFQ queues.





4. Group scheduling with BFQ

============================
@@ -566,7 +559,7 @@ Parameters to set 
For each group, there is only the following parameter to set.



weight (namely blkio.bfq.weight or io.bfq-weight): the weight of the

group inside its parent. Available values: 1..10000 (default 100). The

group inside its parent. Available values: 1..1000 (default 100). The

linear mapping between ioprio and weights, described at the beginning

of the tunable section, is still valid, but all weights higher than

IOPRIO_BE_NR*10 are mapped to ioprio 0.

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