diff options
| author | Mark Brown <[email protected]> | 2010-11-04 00:07:02 -0400 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2010-11-11 14:54:31 +0000 |
| commit | 84e909303dbd3c8d882f152c17d1319f2873e147 (patch) | |
| tree | 6ee9db7f42423282bbe9b17233eff20b8cddacbc /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/SchedGui.py | |
| parent | a8b1d34f3ee1bc139ac5fbe3f84f6d16c90136bb (diff) | |
ASoC: Add DAPM trace events
Trace events for DAPM allow us to monitor the performance and behaviour
of DAPM with logging which can be built into the kernel permanantly, is
more suited to automated analysis and display and less likely to suffer
interference from other logging activity.
Currently trace events are generated for:
- Start and stop of DAPM processing
- Start and stop of bias level changes
- Power decisions for widgets
- Widget event execution start and stop
giving some view as to what is happening and where latencies occur.
Actual changes in widget power can be seen via the register write trace in
soc-core.
Signed-off-by: Mark Brown <[email protected]>
Acked-by: Liam Girdwood <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/SchedGui.py')
0 files changed, 0 insertions, 0 deletions