71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
|
/* cgroupstats.h - exporting per-cgroup statistics
|
||
|
|
*
|
||
|
|
* Copyright IBM Corporation, 2007
|
||
|
|
* Author Balbir Singh <balbir@linux.vnet.ibm.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of version 2.1 of the GNU Lesser General Public License
|
||
|
|
* as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it would be useful, but
|
||
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _LINUX_CGROUPSTATS_H
|
||
|
|
#define _LINUX_CGROUPSTATS_H
|
||
|
|
|
||
|
|
#include <linux/taskstats.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Data shared between user space and kernel space on a per cgroup
|
||
|
|
* basis. This data is shared using taskstats.
|
||
|
|
*
|
||
|
|
* Most of these states are derived by looking at the task->state value
|
||
|
|
* For the nr_io_wait state, a flag in the delay accounting structure
|
||
|
|
* indicates that the task is waiting on IO
|
||
|
|
*
|
||
|
|
* Each member is aligned to a 8 byte boundary.
|
||
|
|
*/
|
||
|
|
struct cgroupstats {
|
||
|
|
__u64 nr_sleeping; /* Number of tasks sleeping */
|
||
|
|
__u64 nr_running; /* Number of tasks running */
|
||
|
|
__u64 nr_stopped; /* Number of tasks in stopped state */
|
||
|
|
__u64 nr_uninterruptible; /* Number of tasks in uninterruptible */
|
||
|
|
/* state */
|
||
|
|
__u64 nr_io_wait; /* Number of tasks waiting on IO */
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Commands sent from userspace
|
||
|
|
* Not versioned. New commands should only be inserted at the enum's end
|
||
|
|
* prior to __CGROUPSTATS_CMD_MAX
|
||
|
|
*/
|
||
|
|
|
||
|
|
enum {
|
||
|
|
CGROUPSTATS_CMD_UNSPEC = __TASKSTATS_CMD_MAX, /* Reserved */
|
||
|
|
CGROUPSTATS_CMD_GET, /* user->kernel request/get-response */
|
||
|
|
CGROUPSTATS_CMD_NEW, /* kernel->user event */
|
||
|
|
__CGROUPSTATS_CMD_MAX,
|
||
|
|
};
|
||
|
|
|
||
|
|
#define CGROUPSTATS_CMD_MAX (__CGROUPSTATS_CMD_MAX - 1)
|
||
|
|
|
||
|
|
enum {
|
||
|
|
CGROUPSTATS_TYPE_UNSPEC = 0, /* Reserved */
|
||
|
|
CGROUPSTATS_TYPE_CGROUP_STATS, /* contains name + stats */
|
||
|
|
__CGROUPSTATS_TYPE_MAX,
|
||
|
|
};
|
||
|
|
|
||
|
|
#define CGROUPSTATS_TYPE_MAX (__CGROUPSTATS_TYPE_MAX - 1)
|
||
|
|
|
||
|
|
enum {
|
||
|
|
CGROUPSTATS_CMD_ATTR_UNSPEC = 0,
|
||
|
|
CGROUPSTATS_CMD_ATTR_FD,
|
||
|
|
__CGROUPSTATS_CMD_ATTR_MAX,
|
||
|
|
};
|
||
|
|
|
||
|
|
#define CGROUPSTATS_CMD_ATTR_MAX (__CGROUPSTATS_CMD_ATTR_MAX - 1)
|
||
|
|
|
||
|
|
#endif /* _LINUX_CGROUPSTATS_H */
|