diff options
| author | Bart Van Assche <[email protected]> | 2021-06-18 00:44:55 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-06-21 21:03:41 +0000 |
| commit | 08a9ad8bf607388d768a341957d53eae64250c2d (patch) | |
| tree | 3e33cbd649b5ec2c332ac83e0739df0e8ae0b090 /lib/debugobjects.c | |
| parent | block/mq-deadline: Track I/O statistics (diff) | |
| download | kernel-08a9ad8bf607388d768a341957d53eae64250c2d.tar.gz kernel-08a9ad8bf607388d768a341957d53eae64250c2d.zip | |
block/mq-deadline: Add cgroup support
Maintain statistics per cgroup and export these to user space. These
statistics are essential for verifying whether the proper I/O priorities
have been assigned to requests. An example of the statistics data with
this patch applied:
$ cat /sys/fs/cgroup/io.stat
11:2 rbytes=0 wbytes=0 rios=3 wios=0 dbytes=0 dios=0 [NONE] dispatched=0 inserted=0 merged=171 [RT] dispatched=0 inserted=0 merged=0 [BE] dispatched=0 inserted=0 merged=0 [IDLE] dispatched=0 inserted=0 merged=0
8:32 rbytes=2142720 wbytes=0 rios=105 wios=0 dbytes=0 dios=0 [NONE] dispatched=0 inserted=0 merged=171 [RT] dispatched=0 inserted=0 merged=0 [BE] dispatched=0 inserted=0 merged=0 [IDLE] dispatched=0 inserted=0 merged=0
Cc: Damien Le Moal <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Ming Lei <[email protected]>
Cc: Johannes Thumshirn <[email protected]>
Cc: Himanshu Madhani <[email protected]>
Signed-off-by: Bart Van Assche <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions