Commit 9b61fc4c authored by Andrea Righi's avatar Andrea Righi Committed by Linus Torvalds
Browse files

Documentation: fix cgroup blkio throttle filenames 



All the blkio.throttle.* file names are incorrectly reported without
".throttle" in the documentation. Fix it.

Signed-off-by: default avatarAndrea Righi <andrea@betterlinux.com>
Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
Acked-by: default avatarVivek Goyal <vgoyal@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 316b3799

Documentation/cgroups/blkio-controller.txt

+6 −6
Original line number Original line Diff line number Diff line
@@ -77,7 +77,7 @@ Throttling/Upper Limit policy 
- Specify a bandwidth rate on particular device for root group. The format

- Specify a bandwidth rate on particular device for root group. The format

  for policy is "<major>:<minor>  <byes_per_second>".

  for policy is "<major>:<minor>  <byes_per_second>".





        echo "8:16  1048576" > /sys/fs/cgroup/blkio/blkio.read_bps_device

        echo "8:16  1048576" > /sys/fs/cgroup/blkio/blkio.throttle.read_bps_device





  Above will put a limit of 1MB/second on reads happening for root group

  Above will put a limit of 1MB/second on reads happening for root group

  on device having major/minor number 8:16.

  on device having major/minor number 8:16.
@@ -90,7 +90,7 @@ Throttling/Upper Limit policy 
        1024+0 records out

        1024+0 records out

        4194304 bytes (4.2 MB) copied, 4.0001 s, 1.0 MB/s

        4194304 bytes (4.2 MB) copied, 4.0001 s, 1.0 MB/s





 Limits for writes can be put using blkio.write_bps_device file.

 Limits for writes can be put using blkio.throttle.write_bps_device file.





Hierarchical Cgroups

Hierarchical Cgroups

====================

====================
@@ -286,28 +286,28 @@ Throttling/Upper limit policy files 
	  specified in bytes per second. Rules are per deivce. Following is

	  specified in bytes per second. Rules are per deivce. Following is

	  the format.

	  the format.





  echo "<major>:<minor>  <rate_bytes_per_second>" > /cgrp/blkio.read_bps_device

  echo "<major>:<minor>  <rate_bytes_per_second>" > /cgrp/blkio.throttle.read_bps_device





- blkio.throttle.write_bps_device

- blkio.throttle.write_bps_device

	- Specifies upper limit on WRITE rate to the device. IO rate is

	- Specifies upper limit on WRITE rate to the device. IO rate is

	  specified in bytes per second. Rules are per deivce. Following is

	  specified in bytes per second. Rules are per deivce. Following is

	  the format.

	  the format.





  echo "<major>:<minor>  <rate_bytes_per_second>" > /cgrp/blkio.write_bps_device

  echo "<major>:<minor>  <rate_bytes_per_second>" > /cgrp/blkio.throttle.write_bps_device





- blkio.throttle.read_iops_device

- blkio.throttle.read_iops_device

	- Specifies upper limit on READ rate from the device. IO rate is

	- Specifies upper limit on READ rate from the device. IO rate is

	  specified in IO per second. Rules are per deivce. Following is

	  specified in IO per second. Rules are per deivce. Following is

	  the format.

	  the format.





  echo "<major>:<minor>  <rate_io_per_second>" > /cgrp/blkio.read_iops_device

  echo "<major>:<minor>  <rate_io_per_second>" > /cgrp/blkio.throttle.read_iops_device





- blkio.throttle.write_iops_device

- blkio.throttle.write_iops_device

	- Specifies upper limit on WRITE rate to the device. IO rate is

	- Specifies upper limit on WRITE rate to the device. IO rate is

	  specified in io per second. Rules are per deivce. Following is

	  specified in io per second. Rules are per deivce. Following is

	  the format.

	  the format.





  echo "<major>:<minor>  <rate_io_per_second>" > /cgrp/blkio.write_iops_device

  echo "<major>:<minor>  <rate_io_per_second>" > /cgrp/blkio.throttle.write_iops_device





Note: If both BW and IOPS rules are specified for a device, then IO is

Note: If both BW and IOPS rules are specified for a device, then IO is

      subjectd to both the constraints.

      subjectd to both the constraints.