Maxim Uvarov b663a79c19 taskstats: add context-switch counters ...

Make available to the user the following task and process performance
statistics:

	* Involuntary Context Switches (task_struct->nivcsw)
	* Voluntary Context Switches (task_struct->nvcsw)

Statistics information is available from:
	1. taskstats interface (Documentation/accounting/)
	2. /proc/PID/status (task only).

This data is useful for detecting hyperactivity patterns between processes.

[akpm@linux-foundation.org: cleanup]
Signed-off-by: Maxim Uvarov <muvarov@ru.mvista.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Cc: Jonathan Lim <jlim@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-07-16 09:05:46 -07:00

..

irq

Fix crash with irqpoll due to the IRQF_IRQPOLL flag testing

2007-05-24 08:37:14 -07:00

power

PM: introduce set_target method in pm_ops

2007-07-01 12:29:44 -07:00

time

Remove capability.h from mm.h

2007-07-16 09:05:45 -07:00

.gitignore

gitignore: ignore more generated files

2006-01-03 11:35:26 +01:00

acct.c

[PATCH] kernel: change uses of f_{dentry, vfsmnt} to use f_path

2006-12-08 08:28:42 -08:00

audit.c

audit: add spaces on either side of case "..." operator.

2007-05-08 11:15:09 -07:00

audit.h

[PATCH] audit signal recipients

2007-05-11 05:38:25 -04:00

auditfilter.c

audit: fix oops removing watch if audit disabled

2007-06-24 08:59:12 -07:00

auditsc.c

[PATCH] Abnormal End of Processes

2007-05-11 05:38:26 -04:00

capability.c

[PATCH] pid: replace do/while_each_task_pid with do/while_each_pid_task

2007-02-12 09:48:32 -08:00

compat.c

signal/timer/event: timerfd compat code

2007-05-11 08:29:36 -07:00

configs.c

use simple_read_from_buffer in kernel/

2007-05-09 12:30:49 -07:00

cpu.c

microcode: use suspend-related CPU hotplug notifications

2007-05-09 12:30:56 -07:00

cpuset.c

Reduce cpuset.c write_lock_irq() to read_lock()

2007-07-16 09:05:43 -07:00

delayacct.c

sched: update delay-accounting to use CFS's precise stats

2007-07-09 18:52:00 +02:00

die_notifier.c

move die notifier handling to common code

2007-05-08 11:15:04 -07:00

dma.c

[PATCH] struct seq_operations and struct file_operations constification

2006-12-07 08:39:46 -08:00

exec_domain.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

exit.c

Add generic exit-time stack-depth checking to CONFIG_DEBUG_STACK_USAGE

2007-07-16 09:05:38 -07:00

extable.c

[PATCH] symbol_put_addr() locks kernel

2006-05-15 11:20:55 -07:00

fork.c

Use boot based time for process start time and boot time in /proc

2007-07-16 09:05:41 -07:00

futex_compat.c

Revert "futex_requeue_pi optimization"

2007-06-18 09:48:41 -07:00

futex.c

FUTEX: Restore the dropped ERSCH fix

2007-06-24 12:08:53 -07:00

hrtimer.c

Add suspend-related notifications for CPU hotplug

2007-05-09 12:30:56 -07:00

itimer.c

The scheduled -EINVAL for invalid timevals in setitimer

2007-05-08 11:15:13 -07:00

kallsyms.c

fix possible null ptr deref in kallsyms_lookup

2007-05-30 10:51:38 -07:00

Kconfig.hz

[PATCH] HZ: 300Hz support

2006-12-07 08:39:36 -08:00

Kconfig.preempt

Fix trivial typos in Kconfig* files

2007-05-09 07:12:20 +02:00

kexec.c

kdump/kexec: calculate note size at compile time

2007-05-08 11:15:07 -07:00

kfifo.c

[PATCH] Numerous fixes to kernel-doc info in source files.

2007-02-11 10:51:32 -08:00

kmod.c

wait_for_helper: remove unneeded do_sigaction()

2007-05-09 12:30:53 -07:00

kprobes.c

Kprobes: The ON/OFF knob thru debugfs

2007-05-08 11:15:19 -07:00

ksysfs.c

remove "struct subsystem" as it is no longer needed

2007-05-02 18:57:59 -07:00

kthread.c

mm: fix improper .init-type section references

2007-07-16 09:05:36 -07:00

latency.c

[PATCH] severing module.h->sched.h

2006-12-04 02:00:22 -05:00

lockdep_internals.h

[PATCH] lockdep: more chains

2006-12-07 08:39:43 -08:00

lockdep_proc.c

[PATCH] remove many unneeded #includes of sched.h

2007-02-14 08:09:54 -08:00

lockdep.c

lockdep: removed unused ip argument in mark_lock & mark_held_locks

2007-05-08 11:15:13 -07:00

Makefile

move die notifier handling to common code

2007-05-08 11:15:04 -07:00

module.c

Make /proc/modules use seq_list_xxx helpers

2007-07-16 09:05:42 -07:00

mutex-debug.c

[PATCH] remove many unneeded #includes of sched.h

2007-02-14 08:09:54 -08:00

mutex-debug.h

[PATCH] lockdep: better lock debugging

2006-07-03 15:27:01 -07:00

mutex.c

wrap access to thread_info

2007-05-09 12:30:56 -07:00

mutex.h

[PATCH] lockdep: prove mutex locking correctness

2006-07-03 15:27:04 -07:00

nsproxy.c

fix refcounting of nsproxy object when unshared

2007-06-24 08:59:10 -07:00

panic.c

[PATCH] Add TAINT_USER and ability to set taint flags from userspace

2007-02-11 10:51:29 -08:00

params.c

sysfs: kill unnecessary attribute->owner

2007-07-11 16:09:06 -07:00

pid.c

statically initialize struct pid for swapper

2007-05-11 08:29:35 -07:00

posix-cpu-timers.c

sched: make posix-cpu-timers use CFS's accounting information

2007-07-09 18:51:58 +02:00

posix-timers.c

posix-timers: Prevent softirq starvation by small intervals and SIG_IGN

2007-06-21 15:57:04 -07:00

printk.c

add printk.time option, deprecate 'time'

2007-07-16 09:05:45 -07:00

profile.c

Detach sched.h from mm.h

2007-05-21 09:18:19 -07:00

ptrace.c

Use write_trylock_irqsave in ptrace_attach

2007-07-16 09:05:40 -07:00

rcupdate.c

Add suspend-related notifications for CPU hotplug

2007-05-09 12:30:56 -07:00

rcutorture.c

rcutorture: Remove redundant assignment to cur_ops in for loop

2007-05-08 11:15:17 -07:00

relay.c

relay: fixup kerneldoc comment

2007-07-13 14:14:28 +02:00

resource.c

libata/IDE: remove combined mode quirk

2007-04-28 14:15:59 -04:00

rtmutex_common.h

Revert "futex_requeue_pi optimization"

2007-06-18 09:48:41 -07:00

rtmutex-debug.c

Remove all inclusions of <linux/config.h>

2006-10-04 03:38:54 -04:00

rtmutex-debug.h

[PATCH] lockdep: better lock debugging

2006-07-03 15:27:01 -07:00

rtmutex-tester.c

[PATCH] Add include/linux/freezer.h and move definitions from sched.h

2006-12-07 08:39:27 -08:00

rtmutex.c

Revert "futex_requeue_pi optimization"

2007-06-18 09:48:41 -07:00

rtmutex.h

[PATCH] lockdep: better lock debugging

2006-07-03 15:27:01 -07:00

rwsem.c

Lockdep treats down_write_trylock like regular down_write

2007-05-08 11:15:09 -07:00

sched_debug.c

[PATCH] sched: remove stale version info from kernel/sched_debug.c

2007-07-13 10:10:41 -07:00

sched_fair.c

sched: cfs core, kernel/sched_fair.c

2007-07-09 18:51:58 +02:00

sched_idletask.c

sched: cfs core, kernel/sched_idletask.c

2007-07-09 18:51:58 +02:00

sched_rt.c

sched: cfs core, kernel/sched_rt.c

2007-07-09 18:51:58 +02:00

sched_stats.h

sched: update delay-accounting to use CFS's precise stats

2007-07-09 18:52:00 +02:00

sched.c

CFS: Fix missing digit off in wmult table

2007-07-13 16:45:43 -07:00

seccomp.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

signal.c

vdso: print fatal signals

2007-07-16 09:05:43 -07:00

softirq.c

cpu hotplug: fix ksoftirqd termination on cpu hotplug with naughty realtime process

2007-07-16 09:05:41 -07:00

softlockup.c

Add suspend-related notifications for CPU hotplug

2007-05-09 12:30:56 -07:00

spinlock.c

[PATCH] lockdep: spin_lock_irqsave_nested()

2006-11-25 13:28:34 -08:00

srcu.c

[PATCH] SRCU: report out-of-memory errors

2006-10-04 07:55:30 -07:00

stacktrace.c

[PATCH] lockdep: stacktrace subsystem, core

2006-07-03 15:27:02 -07:00

stop_machine.c

Fix stop_machine_run problem with naughty real time process

2007-07-16 09:05:41 -07:00

sys_ni.c

compat signalfd and timerfd are cond syscalls

2007-05-12 10:55:40 -07:00

sys.c

attach_pid() with struct pid parameter

2007-05-11 08:29:35 -07:00

sysctl.c

vdso: print fatal signals

2007-07-16 09:05:43 -07:00

taskstats.c

taskstats: add context-switch counters

2007-07-16 09:05:46 -07:00

time.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

timer.c

Add a flag to indicate deferrable timers in /proc/timer_stats

2007-07-16 09:05:45 -07:00

tsacct.c

[PATCH] time: x86_64: split x86_64/kernel/time.c up

2007-02-16 08:14:00 -08:00

uid16.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

user.c

[PATCH] slab: remove kmem_cache_t

2006-12-07 08:39:25 -08:00

utsname_sysctl.c

[PATCH] sysctl: remove insert_at_head from register_sysctl

2007-02-14 08:09:59 -08:00

utsname.c

Merge sys_clone()/sys_unshare() nsproxy and namespace handling

2007-05-08 11:15:00 -07:00

wait.c

Fix occurrences of "the the "

2007-05-09 08:57:56 +02:00

workqueue.c

simplify cleanup_workqueue_thread()

2007-05-23 20:14:13 -07:00