Lines Matching refs:cgroup
8 The process number controller is used to allow a cgroup hierarchy to stop any
13 preventable in the scope of a cgroup hierarchy by allowing resource limiting of
14 the number of tasks in a cgroup.
20 pids.max (this is not available in the root cgroup for obvious reasons). The
21 number of processes currently in the cgroup is given by pids.current.
23 Organisational operations are not blocked by cgroup policies, so it is possible
25 be smaller than pids.current, or attaching enough processes to the cgroup such
26 that pids.current > pids.max. However, it is not possible to violate a cgroup
28 creation of a new process would cause a cgroup policy to be violated.
30 To set a cgroup to have no limit, set pids.max to "max". This is the default for
34 pids.current tracks all child cgroup hierarchies, so parent/pids.current is a
46 # mkdir -p /sys/fs/cgroup/pids
47 # mount -t cgroup -o pids none /sys/fs/cgroup/pids
51 # mkdir -p /sys/fs/cgroup/pids/parent/child
52 # echo 2 > /sys/fs/cgroup/pids/parent/pids.max
53 # echo $$ > /sys/fs/cgroup/pids/parent/cgroup.procs
54 # cat /sys/fs/cgroup/pids/parent/pids.current
61 # cat /sys/fs/cgroup/pids/parent/pids.current
67 Even if we migrate to a child cgroup (which doesn't have a set limit), we will
71 # echo $$ > /sys/fs/cgroup/pids/parent/child/cgroup.procs
72 # cat /sys/fs/cgroup/pids/parent/pids.current
74 # cat /sys/fs/cgroup/pids/parent/child/pids.current
76 # cat /sys/fs/cgroup/pids/parent/child/pids.max
86 # echo 1 > /sys/fs/cgroup/pids/parent/pids.max
89 # echo 0 > /sys/fs/cgroup/pids/parent/pids.max