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authorPaul Menage <menage@google.com>2007-10-18 23:39:42 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 11:53:36 -0700
commit62d0df64065e7c135d0002f069444fbdfc64768f (patch)
tree9087bf336182ab9c619460ba2370a223200179bc /include
parent8793d854edbc2774943a4b0de3304dc73991159a (diff)
Task Control Groups: example CPU accounting subsystem
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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/cgroup_subsys.h6
-rw-r--r--include/linux/cpu_acct.h14
2 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index b152b51a436..a568b8746f1 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -13,4 +13,10 @@ SUBSYS(cpuset)
/* */
+#ifdef CONFIG_CGROUP_CPUACCT
+SUBSYS(cpuacct)
+#endif
+
+/* */
+
/* */
diff --git a/include/linux/cpu_acct.h b/include/linux/cpu_acct.h
new file mode 100644
index 00000000000..6b5fd8a66c8
--- /dev/null
+++ b/include/linux/cpu_acct.h
@@ -0,0 +1,14 @@
+
+#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