On Tue, Sep 20, 2011 at 9:44 AM, Amit Nagal <helloin.amit@xxxxxxxxx> wrote:
Hi Amit,
For this you can make use of ftrace.
Refer link http://www.mjmwired.net/kernel/Documentation/trace/ftrace.txt
Regards,
Rohan
Hi ,
i want to measure time spend in a callback function called from
interrupt context .
since the time spend will be in us / ns , what kernel apis can i use
to measure it ?
also since i want to use it in interrupt context , kernel time
measurement apis should not sleep .
i am using embedded arm target , and tools like OProfile are not available .
can i be guided which kernel time measurement apis shall i use to
measure time in a interrupt callback ?
Regards
Amit Nagal
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Hi Amit,
For this you can make use of ftrace.
Refer link http://www.mjmwired.net/kernel/Documentation/trace/ftrace.txt
Regards,
Rohan
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