1 ==================
2 Control Groupstats
3 ==================
4
5 Control Groupstats is inspired by the discussi
6 https://lore.kernel.org/r/461CF883.2030308@sw.
7 suggested by Andrew Morton in https://lore.ker
8
9 Per cgroup statistics infrastructure re-uses c
10 interface. A new set of cgroup operations are
11 and attributes specific to cgroups. It should
12 extend per cgroup statistics, by adding member
13 structure.
14
15 The current model for cgroupstats is a pull, a
16 statistics on interesting events), should be v
17 user space requests for statistics by passing
18 Statistics about the state of all the tasks in
19 user space.
20
21 NOTE: We currently rely on delay accounting fo
22 about tasks blocked on I/O. If CONFIG_TASK_DEL
23 information will not be available.
24
25 To extract cgroup statistics a utility very si
26 has been developed, the sample output of the u
27
28 ~/balbir/cgroupstats # ./getdelays -C "/sys
29 sleeping 1, blocked 0, running 1, stopped 0,
30 ~/balbir/cgroupstats # ./getdelays -C "/sys
31 sleeping 155, blocked 0, running 1, stopped
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