diff options
| author | Chen Yu <yu.c.chen@intel.com> | 2020-01-15 17:28:51 +0800 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-01-20 16:19:10 +0100 |
| commit | e79f15a4598c1f3f3f7f3319ca308c63c91fdaf2 (patch) | |
| tree | ddd82880c6aa0d623de777e89946d4d96d07884a /include | |
| parent | 536a0d8e79fb928f2735db37dda95682b6754f9a (diff) | |
| download | linux-e79f15a4598c1f3f3f7f3319ca308c63c91fdaf2.tar.bz2 | |
x86/resctrl: Add task resctrl information display
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
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/resctrl.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h new file mode 100644 index 000000000000..daf5cf64c6a6 --- /dev/null +++ b/include/linux/resctrl.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _RESCTRL_H +#define _RESCTRL_H + +#ifdef CONFIG_PROC_CPU_RESCTRL + +int proc_resctrl_show(struct seq_file *m, + struct pid_namespace *ns, + struct pid *pid, + struct task_struct *tsk); + +#endif + +#endif /* _RESCTRL_H */ |