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| author | Bruce Ashfield <bruce.ashfield@windriver.com> | 2010-08-20 12:24:43 -0400 |
|---|---|---|
| committer | Richard Purdie <rpurdie@linux.intel.com> | 2010-08-27 13:00:06 +0100 |
| commit | e76f76a37d046957f46814d9a106f0f5b4f8af72 (patch) | |
| tree | cadd962b3cdc9e64cde697a8efa9f032371217f0 /meta/packages/ohm | |
| parent | 70cd1ff43ff1109847cce2f2fe891fb9bdfdb3b2 (diff) | |
| download | openembedded-core-e76f76a37d046957f46814d9a106f0f5b4f8af72.tar.gz openembedded-core-e76f76a37d046957f46814d9a106f0f5b4f8af72.tar.bz2 openembedded-core-e76f76a37d046957f46814d9a106f0f5b4f8af72.tar.xz openembedded-core-e76f76a37d046957f46814d9a106f0f5b4f8af72.zip | |
ftrace: add trace-cmd for ftrace control and config
Rather than manually configuring ftrace, trace-cmd was created
to provide a more user friendly interface to the tracer.
Some examples are:
# ./trace-cmd record -e all ls /bin
Then to see the information:
# ./trace-cmd report
To see just a subsystem:
# ./trace-cmd record -e irq ls /bin
To list the available trace events:
# ./trace-cmd list -e
You can also trace a single trace point with one of two methods:
# ./trace-cmd record -e sched:sched_wakeup ls /bin
Or simply:
# ./trace-cmd record -e sched_wakeup ls /bin
This tool also works with tracers (plugins) as well as events
# ./trace-cmd list -p
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Diffstat (limited to 'meta/packages/ohm')
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