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| author | Maxim Uvarov <muvarov@ru.mvista.com> | 2007-07-16 08:40:48 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 18:05:46 +0200 |
| commit | b663a79c191508f27cd885224b592a878c0ba0f6 (patch) | |
| tree | 270a0472bf1fb0c7323ecb60ec68e40d02dcb1b4 /Documentation/devices.txt | |
| parent | ext3/ext4: orphan list corruption due bad inode (diff) | |
| download | linux-b663a79c191508f27cd885224b592a878c0ba0f6.tar.xz linux-b663a79c191508f27cd885224b592a878c0ba0f6.zip | |
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>
Diffstat (limited to 'Documentation/devices.txt')
0 files changed, 0 insertions, 0 deletions