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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-17 21:16:55 -0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-17 21:16:55 -0400 |
| commit | 4b337c5f245b6587ba844ac7bb13c313a2912f7b (patch) | |
| tree | 999c6a6580b76a083c8efb9dabff709d1c49fcd0 /scripts/tracing | |
| parent | 492b057c426e4aa747484958e18e9da29003985d (diff) | |
| parent | 3fe0344faf7fdcb158bd5c1a9aec960a8d70c8e8 (diff) | |
Merge commit 'origin/master' into next
Diffstat (limited to 'scripts/tracing')
| -rw-r--r-- | scripts/tracing/draw_functrace.py | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/scripts/tracing/draw_functrace.py b/scripts/tracing/draw_functrace.py index 902f9a992620..db40fa04cd51 100644 --- a/scripts/tracing/draw_functrace.py +++ b/scripts/tracing/draw_functrace.py | |||
| @@ -12,10 +12,9 @@ calls. Only the functions's names and the the call time are provided. | |||
| 12 | 12 | ||
| 13 | Usage: | 13 | Usage: |
| 14 | Be sure that you have CONFIG_FUNCTION_TRACER | 14 | Be sure that you have CONFIG_FUNCTION_TRACER |
| 15 | # mkdir /debugfs | 15 | # mount -t debugfs nodev /sys/kernel/debug |
| 16 | # mount -t debug debug /debug | 16 | # echo function > /sys/kernel/debug/tracing/current_tracer |
| 17 | # echo function > /debug/tracing/current_tracer | 17 | $ cat /sys/kernel/debug/tracing/trace_pipe > ~/raw_trace_func |
| 18 | $ cat /debug/tracing/trace_pipe > ~/raw_trace_func | ||
| 19 | Wait some times but not too much, the script is a bit slow. | 18 | Wait some times but not too much, the script is a bit slow. |
| 20 | Break the pipe (Ctrl + Z) | 19 | Break the pipe (Ctrl + Z) |
| 21 | $ scripts/draw_functrace.py < raw_trace_func > draw_functrace | 20 | $ scripts/draw_functrace.py < raw_trace_func > draw_functrace |