Messages in this thread | | | Date | Sat, 12 Jul 2008 18:19:03 +0530 | From | "Abhishek Sagar" <> | Subject | Re: [PATCH] ftrace: Documentation |
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On Thu, Jul 10, 2008 at 10:16 PM, Steven Rostedt <rostedt@goodmis.org> wrote: > > This is the long awaited ftrace.txt. It explains in quite detail how to > use ftrace and the various tracers.
This is quite good. Thanks!
> +Output format: > +-------------- > + > +Here's an example of the output format of the file "trace" > + > + -------- > +# tracer: ftrace > +# > +# TASK-PID CPU# TIMESTAMP FUNCTION > +# | | | | | > + bash-4251 [01] 10152.583854: path_put <-path_walk > + bash-4251 [01] 10152.583855: dput <-path_put > + bash-4251 [01] 10152.583855: _atomic_dec_and_lock <-dput > + --------
A small caveat here...the function names may be substituted with a "[unkown/kretprobe'd]" under special circumstances (http://lkml.org/lkml/2008/5/27/275). May be that should be mentioned here?
-- Regards, Abhishek
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