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e79f15a459
Monitoring tools that want to find out which resctrl control and monitor
groups a task belongs to must currently read the "tasks" file in every
group until they locate the process ID.
Add an additional file /proc/{pid}/cpu_resctrl_groups to provide this
information:
1) res:
mon:
resctrl is not available.
2) res:/
mon:
Task is part of the root resctrl control group, and it is not associated
to any monitor group.
3) res:/
mon:mon0
Task is part of the root resctrl control group and monitor group mon0.
4) res:group0
mon:
Task is part of resctrl control group group0, and it is not associated
to any monitor group.
5) res:group0
mon:mon1
Task is part of resctrl control group group0 and monitor group mon1.
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Jinshi Chen <jinshi.chen@intel.com>
Link: https://lkml.kernel.org/r/20200115092851.14761-1-yu.c.chen@intel.com
15 lines
278 B
C
15 lines
278 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _RESCTRL_H
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#define _RESCTRL_H
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#ifdef CONFIG_PROC_CPU_RESCTRL
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int proc_resctrl_show(struct seq_file *m,
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struct pid_namespace *ns,
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struct pid *pid,
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struct task_struct *tsk);
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#endif
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#endif /* _RESCTRL_H */
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