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Task Control Groups: example CPU accounting subsystem

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This example demonstrates how to use the generic cgroup subsystem for a
simple resource tracker that counts, for the processes in a cgroup, the
total CPU time used and the %CPU used in the last complete 10 second interval.

Portions contributed by Balbir Singh <balbir@in.ibm.com>

Signed-off-by: Paul Menage <menage@google.com>
Cc: Serge E. Hallyn <serue@us.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Menage 2007-10-18 23:39:42 -07:00 • committed by Linus Torvalds
parent 8793d854ed
commit 62d0df6406
6 changed files with 225 additions and 3 deletions
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14
include/linux/cpu_acct.h Normal file
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#ifndef _LINUX_CPU_ACCT_H
#define _LINUX_CPU_ACCT_H
#include <linux/cgroup.h>
#include <asm/cputime.h>
#ifdef CONFIG_CGROUP_CPUACCT
extern void cpuacct_charge(struct task_struct *, cputime_t cputime);
#else
static void inline cpuacct_charge(struct task_struct *p, cputime_t cputime) {}
#endif
#endif