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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
..
delay-accounting.txt [PATCH] delay accounting: temporarily enable by default 2006-07-31 13:28:37 -07:00
getdelays.c taskstats: add context-switch counters 2007-07-16 09:05:46 -07:00
taskstats-struct.txt taskstats: add context-switch counters 2007-07-16 09:05:46 -07:00
taskstats.txt Fix typos in /Documentation : 'U-Z' 2006-11-30 04:58:40 +01:00