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3.3. cpuacct
The cpuacct subsystem generates automatic reports on CPU resources used by the tasks in a control group, including tasks in child groups. Three reports are available:
cpuacct.stat
reports the number of CPU cycles (in the units defined by USER_HZ on the system) consumed by tasks in this control group and its children in both user mode and system (kernel) mode.
cpuacct.usage
reports the total CPU time (in nanoseconds) consumed by all tasks in this control group (including tasks lower in the hierarchy).
cpuacct.usage_percpu
reports the CPU time (in nanoseconds) consumed on each CPU by all tasks in this control group (including tasks lower in the hierarchy).
