perfcounters: add task migrations counter
authorIngo Molnar <mingo@elte.hu>
Sun, 14 Dec 2008 11:34:15 +0000 (12:34 +0100)
committerIngo Molnar <mingo@elte.hu>
Sun, 14 Dec 2008 19:31:26 +0000 (20:31 +0100)
Impact: add new feature, new sw counter

Add a counter that counts the number of cross-CPU migrations a
task is suffering.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

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