diff options
| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-04-28 09:22:52 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-05-09 23:08:54 +0200 |
| commit | 34eb33407f1b1e5bca7aa0080df18513caa7e28e (patch) | |
| tree | fee7973fc35b18fdffddf27cf63325ca83781828 /man7/cgroups.7 | |
| parent | 5f8a7eb2d1beeebb12115c6d88eb85537c13be04 (diff) | |
| download | man-pages-34eb33407f1b1e5bca7aa0080df18513caa7e28e.tar.gz | |
cgroups.7: Document /proc/cgroups
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man7/cgroups.7')
| -rw-r--r-- | man7/cgroups.7 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/man7/cgroups.7 b/man7/cgroups.7 index 26f89cffca..80eac9aa1e 100644 --- a/man7/cgroups.7 +++ b/man7/cgroups.7 @@ -453,6 +453,48 @@ Further information can be found in the kernel source file .IR Documentation/cgroup-v1/pids.txt . .SS /proc files .TP +.IR /proc/cgroups " (since Linux 2.6.24)" +This file contains information about the cgroups version 1 controllers +that are available on the system. +An example of the contents of this file (reformatted for readability) +is the following: + +.nf +.in +4n +#subsys_name hierarchy num_cgroups enabled +cpuset 4 1 1 +cpu 8 1 1 +cpuacct 8 1 1 +blkio 6 1 1 +memory 3 1 1 +devices 10 84 1 +freezer 7 1 1 +net_cls 9 1 1 +perf_event 5 1 1 +net_prio 9 1 1 +hugetlb 0 1 0 +pids 2 1 1 +.in +.fi + +The fields in this file are, from left to right: +.RS +.IP 1. 3 +The name of the controller. +.IP 2. +A unique ID for the cgroup hierarchy on which this controller is mounted. +If the controller is not currently mounted, the value in this field is 0. +If multiple controllers are bound to the same hierarchy, +then each will show the same hierarchy ID in this field. +.IP 3. +The number of control groups in this hierarchy using this controller. +.IP 4. +This field contains the value 1 if this controller is enabled, +or 0 if it has been disabled (via the +.IR cgroup_disable +kernel command-line boot parameter). +.RE +.TP .IR /proc/[pid]/cgroup " (since Linux 2.6.24)" This file describes control groups to which the process belongs. The displayed information differs for |