Andrew Vagin e6dab5ffab perf/trace: Add ability to set a target task for events ...

A few events are interesting not only for a current task.
For example, sched_stat_* events are interesting for a task
which wakes up. For this reason, it will be good if such
events will be delivered to a target task too.

Now a target task can be set by using __perf_task().

The original idea and a draft patch belongs to Peter Zijlstra.

I need these events for profiling sleep times. sched_switch is used for
getting callchains and sched_stat_* is used for getting time periods.
These events are combined in user space, then it can be analyzed by
perf tools.

Inspired-by: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Arun Sharma <[email protected]>
Signed-off-by: Andrew Vagin <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>

2012-07-31 17:02:05 +02:00

..

callchain.c

perf/trace: Add ability to set a target task for events

2012-07-31 17:02:05 +02:00

core.c

perf/trace: Add ability to set a target task for events

2012-07-31 17:02:05 +02:00

hw_breakpoint.c

Merge branch 'x86/cleanups' into perf/uprobes

2012-03-13 16:33:03 +01:00

internal.h

perf/trace: Add ability to set a target task for events

2012-07-31 17:02:05 +02:00

Makefile

uprobes: Move to kernel/events/

2012-02-22 11:08:00 +01:00

ring_buffer.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-01-08 13:21:22 -08:00

uprobes.c

uprobes: __replace_page() needs munlock_vma_page()

2012-07-30 11:27:25 +02:00