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sched: latencytop support

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LatencyTOP kernel infrastructure; it measures latencies in the
scheduler and tracks it system wide and per process.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arjan van de Ven 2008-01-25 21:08:34 +01:00 • committed by Ingo Molnar
parent 326587b840
commit 9745512ce7
11 changed files with 429 additions and 1 deletions
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3
include/linux/stacktrace.h
View file

@ -9,10 +9,13 @@ struct stack_trace {
};
extern void save_stack_trace(struct stack_trace *trace);
extern void save_stack_trace_tsk(struct task_struct *tsk,
struct stack_trace *trace);
extern void print_stack_trace(struct stack_trace *trace, int spaces);
#else
# define save_stack_trace(trace) do { } while (0)
# define save_stack_trace_tsk(tsk, trace) do { } while (0)
# define print_stack_trace(trace, spaces) do { } while (0)
#endif