diff options
author | Paul Jackson <pj@sgi.com> | 2008-07-04 13:00:01 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-04 13:40:09 -0400 |
commit | 985ee7f224cca8a0d622b24ec399f364c63fc274 (patch) | |
tree | 0d53400018d9866af2b04d7c0ccba735d6678595 /Documentation/cpusets.txt | |
parent | 51597acfd3c09073aeea94a0e6f76a931f8c22d2 (diff) |
cpusets: document proc status cpus and mems allowed lists
Provide a little documentation for the two new fields, Cpus_allowed_list
and Mems_allowed_list, that were added to each /proc/<pid>/status file a
while back.
Signed-off-by: Paul Jackson <pj@sgi.com>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/cpusets.txt')
-rw-r--r-- | Documentation/cpusets.txt | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt index 353504de3084..894b844153ea 100644 --- a/Documentation/cpusets.txt +++ b/Documentation/cpusets.txt | |||
@@ -154,13 +154,15 @@ browsing and modifying the cpusets presently known to the kernel. No | |||
154 | new system calls are added for cpusets - all support for querying and | 154 | new system calls are added for cpusets - all support for querying and |
155 | modifying cpusets is via this cpuset file system. | 155 | modifying cpusets is via this cpuset file system. |
156 | 156 | ||
157 | The /proc/<pid>/status file for each task has two added lines, | 157 | The /proc/<pid>/status file for each task has four added lines, |
158 | displaying the tasks cpus_allowed (on which CPUs it may be scheduled) | 158 | displaying the tasks cpus_allowed (on which CPUs it may be scheduled) |
159 | and mems_allowed (on which Memory Nodes it may obtain memory), | 159 | and mems_allowed (on which Memory Nodes it may obtain memory), |
160 | in the format seen in the following example: | 160 | in the two formats seen in the following example: |
161 | 161 | ||
162 | Cpus_allowed: ffffffff,ffffffff,ffffffff,ffffffff | 162 | Cpus_allowed: ffffffff,ffffffff,ffffffff,ffffffff |
163 | Cpus_allowed_list: 0-127 | ||
163 | Mems_allowed: ffffffff,ffffffff | 164 | Mems_allowed: ffffffff,ffffffff |
165 | Mems_allowed_list: 0-63 | ||
164 | 166 | ||
165 | Each cpuset is represented by a directory in the cgroup file system | 167 | Each cpuset is represented by a directory in the cgroup file system |
166 | containing (on top of the standard cgroup files) the following | 168 | containing (on top of the standard cgroup files) the following |