| Message ID | 20211019130230.77594-1-maier@linux.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | block: add documentation for inflight | expand |
On 10/19/21 7:02 AM, Steffen Maier wrote: > Complements v2.6.32 commit a9327cac440b ("Seperate read and write > statistics of in_flight requests") and commit 316d315bffa4 ("block: > Seperate read and write statistics of in_flight requests v2"). Jon, probably better if you take this through the doc tree. You can add my: Reviewed-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe <axboe@kernel.dk> writes: > On 10/19/21 7:02 AM, Steffen Maier wrote: >> Complements v2.6.32 commit a9327cac440b ("Seperate read and write >> statistics of in_flight requests") and commit 316d315bffa4 ("block: >> Seperate read and write statistics of in_flight requests v2"). > > Jon, probably better if you take this through the doc tree. You can > add my: > > Reviewed-by: Jens Axboe <axboe@kernel.dk> Done. Thanks, jon
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block index a0ed87386639..b16b0c45a272 100644 --- a/Documentation/ABI/testing/sysfs-block +++ b/Documentation/ABI/testing/sysfs-block @@ -28,6 +28,22 @@ Description: For more details refer Documentation/admin-guide/iostats.rst +What: /sys/block/<disk>/inflight +Date: October 2009 +Contact: Jens Axboe <axboe@kernel.dk>, Nikanth Karthikesan <knikanth@suse.de> +Description: + Reports the number of I/O requests currently in progress + (pending / in flight) in a device driver. This can be less + than the number of requests queued in the block device queue. + The report contains 2 fields: one for read requests + and one for write requests. + The value type is unsigned int. + Cf. Documentation/block/stat.rst which contains a single value for + requests in flight. + This is related to nr_requests in Documentation/block/queue-sysfs.rst + and for SCSI device also its queue_depth. + + What: /sys/block/<disk>/diskseq Date: February 2021 Contact: Matteo Croce <mcroce@microsoft.com>
Complements v2.6.32 commit a9327cac440b ("Seperate read and write statistics of in_flight requests") and commit 316d315bffa4 ("block: Seperate read and write statistics of in_flight requests v2"). Signed-off-by: Steffen Maier <maier@linux.ibm.com> --- Documentation/ABI/testing/sysfs-block | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)