diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-06-06 13:26:24 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-06-20 19:32:35 +0300 |
| commit | 8060c47ba853f147c46bf1e6f6d93d1726fcb57a (patch) | |
| tree | ccab63ea63d2b21044874e93f2e0595c62774ade /Documentation/cgroup-v1 | |
| parent | d6258980daf207f986676e59e6ea295204cdc84e (diff) | |
| download | linux-8060c47ba853f147c46bf1e6f6d93d1726fcb57a.tar.xz | |
block: rename CONFIG_DEBUG_BLK_CGROUP to CONFIG_BFQ_CGROUP_DEBUG
This option is entirely bfq specific, give it an appropinquate name.
Also make it depend on CONFIG_BFQ_GROUP_IOSCHED in Kconfig, as all
the functionality already does so anyway.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/cgroup-v1')
| -rw-r--r-- | Documentation/cgroup-v1/blkio-controller.txt | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/cgroup-v1/blkio-controller.txt b/Documentation/cgroup-v1/blkio-controller.txt index d1a1b7bdd03a..78ec4500f220 100644 --- a/Documentation/cgroup-v1/blkio-controller.txt +++ b/Documentation/cgroup-v1/blkio-controller.txt @@ -77,7 +77,7 @@ Various user visible config options CONFIG_BLK_CGROUP - Block IO controller. -CONFIG_DEBUG_BLK_CGROUP +CONFIG_BFQ_CGROUP_DEBUG - Debug help. Right now some additional stats file show up in cgroup if this option is enabled. @@ -193,13 +193,13 @@ Proportional weight policy files write, sync or async. - blkio.avg_queue_size - - Debugging aid only enabled if CONFIG_DEBUG_BLK_CGROUP=y. + - Debugging aid only enabled if CONFIG_BFQ_CGROUP_DEBUG=y. The average queue size for this cgroup over the entire time of this cgroup's existence. Queue size samples are taken each time one of the queues of this cgroup gets a timeslice. - blkio.group_wait_time - - Debugging aid only enabled if CONFIG_DEBUG_BLK_CGROUP=y. + - Debugging aid only enabled if CONFIG_BFQ_CGROUP_DEBUG=y. This is the amount of time the cgroup had to wait since it became busy (i.e., went from 0 to 1 request queued) to get a timeslice for one of its queues. This is different from the io_wait_time which is the @@ -210,7 +210,7 @@ Proportional weight policy files got a timeslice and will not include the current delta. - blkio.empty_time - - Debugging aid only enabled if CONFIG_DEBUG_BLK_CGROUP=y. + - Debugging aid only enabled if CONFIG_BFQ_CGROUP_DEBUG=y. This is the amount of time a cgroup spends without any pending requests when not being served, i.e., it does not include any time spent idling for one of the queues of the cgroup. This is in @@ -219,7 +219,7 @@ Proportional weight policy files time it had a pending request and will not include the current delta. - blkio.idle_time - - Debugging aid only enabled if CONFIG_DEBUG_BLK_CGROUP=y. + - Debugging aid only enabled if CONFIG_BFQ_CGROUP_DEBUG=y. This is the amount of time spent by the IO scheduler idling for a given cgroup in anticipation of a better request than the existing ones from other queues/cgroups. This is in nanoseconds. If this is read @@ -228,7 +228,7 @@ Proportional weight policy files the current delta. - blkio.dequeue - - Debugging aid only enabled if CONFIG_DEBUG_BLK_CGROUP=y. This + - Debugging aid only enabled if CONFIG_BFQ_CGROUP_DEBUG=y. This gives the statistics about how many a times a group was dequeued from service tree of the device. First two fields specify the major and minor number of the device and third field specifies the number |