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-rw-r--r--Documentation/cgroups/blkio-controller.txt12
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/cgroups/blkio-controller.txt b/Documentation/cgroups/blkio-controller.txt
index cd45c8ea7463..84f0a15fc210 100644
--- a/Documentation/cgroups/blkio-controller.txt
+++ b/Documentation/cgroups/blkio-controller.txt
@@ -77,7 +77,7 @@ Throttling/Upper Limit policy
77- Specify a bandwidth rate on particular device for root group. The format 77- Specify a bandwidth rate on particular device for root group. The format
78 for policy is "<major>:<minor> <byes_per_second>". 78 for policy is "<major>:<minor> <byes_per_second>".
79 79
80 echo "8:16 1048576" > /sys/fs/cgroup/blkio/blkio.read_bps_device 80 echo "8:16 1048576" > /sys/fs/cgroup/blkio/blkio.throttle.read_bps_device
81 81
82 Above will put a limit of 1MB/second on reads happening for root group 82 Above will put a limit of 1MB/second on reads happening for root group
83 on device having major/minor number 8:16. 83 on device having major/minor number 8:16.
@@ -90,7 +90,7 @@ Throttling/Upper Limit policy
90 1024+0 records out 90 1024+0 records out
91 4194304 bytes (4.2 MB) copied, 4.0001 s, 1.0 MB/s 91 4194304 bytes (4.2 MB) copied, 4.0001 s, 1.0 MB/s
92 92
93 Limits for writes can be put using blkio.write_bps_device file. 93 Limits for writes can be put using blkio.throttle.write_bps_device file.
94 94
95Hierarchical Cgroups 95Hierarchical Cgroups
96==================== 96====================
@@ -286,28 +286,28 @@ Throttling/Upper limit policy files
286 specified in bytes per second. Rules are per deivce. Following is 286 specified in bytes per second. Rules are per deivce. Following is
287 the format. 287 the format.
288 288
289 echo "<major>:<minor> <rate_bytes_per_second>" > /cgrp/blkio.read_bps_device 289 echo "<major>:<minor> <rate_bytes_per_second>" > /cgrp/blkio.throttle.read_bps_device
290 290
291- blkio.throttle.write_bps_device 291- blkio.throttle.write_bps_device
292 - Specifies upper limit on WRITE rate to the device. IO rate is 292 - Specifies upper limit on WRITE rate to the device. IO rate is
293 specified in bytes per second. Rules are per deivce. Following is 293 specified in bytes per second. Rules are per deivce. Following is
294 the format. 294 the format.
295 295
296 echo "<major>:<minor> <rate_bytes_per_second>" > /cgrp/blkio.write_bps_device 296 echo "<major>:<minor> <rate_bytes_per_second>" > /cgrp/blkio.throttle.write_bps_device
297 297
298- blkio.throttle.read_iops_device 298- blkio.throttle.read_iops_device
299 - Specifies upper limit on READ rate from the device. IO rate is 299 - Specifies upper limit on READ rate from the device. IO rate is
300 specified in IO per second. Rules are per deivce. Following is 300 specified in IO per second. Rules are per deivce. Following is
301 the format. 301 the format.
302 302
303 echo "<major>:<minor> <rate_io_per_second>" > /cgrp/blkio.read_iops_device 303 echo "<major>:<minor> <rate_io_per_second>" > /cgrp/blkio.throttle.read_iops_device
304 304
305- blkio.throttle.write_iops_device 305- blkio.throttle.write_iops_device
306 - Specifies upper limit on WRITE rate to the device. IO rate is 306 - Specifies upper limit on WRITE rate to the device. IO rate is
307 specified in io per second. Rules are per deivce. Following is 307 specified in io per second. Rules are per deivce. Following is
308 the format. 308 the format.
309 309
310 echo "<major>:<minor> <rate_io_per_second>" > /cgrp/blkio.write_iops_device 310 echo "<major>:<minor> <rate_io_per_second>" > /cgrp/blkio.throttle.write_iops_device
311 311
312Note: If both BW and IOPS rules are specified for a device, then IO is 312Note: If both BW and IOPS rules are specified for a device, then IO is
313 subjectd to both the constraints. 313 subjectd to both the constraints.