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| author | Yufen Yu <yuyufen@huawei.com> | 2020-07-03 02:13:23 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-06 08:07:01 -0600 |
| commit | 65752aef0a407e1ef17ec78a7fc31ba4e0b360f9 (patch) | |
| tree | a632633bc93b3c8f5c891e6446364fea0ec33387 /Documentation | |
| parent | 3197d48a7c04eee3e50bd54ef7e17e383b8a919e (diff) | |
| download | lwn-65752aef0a407e1ef17ec78a7fc31ba4e0b360f9.tar.gz lwn-65752aef0a407e1ef17ec78a7fc31ba4e0b360f9.zip | |
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: Yufen Yu <yuyufen@huawei.com>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/block/bfq-iosched.rst | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/Documentation/block/bfq-iosched.rst b/Documentation/block/bfq-iosched.rst index 0d237d402860..19d4d1570cee 100644 --- a/Documentation/block/bfq-iosched.rst +++ b/Documentation/block/bfq-iosched.rst @@ -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. |