Thanks Thomas! I will try the timer code that you provided. I have tried profiling with just wrapping the python code with cprofiler's runctx but the problem is that my python code is sort of a packet parser and is called for each packet, but when I see the profiled results it appears that the profile gets rewritten for each packet and I can't see the aggregate result: I see 1-2 calls per function and each call is shown to have taken 0.00 time.
I have also tried valgrind's callgrind in conjunction with kcachegrind but it doesn't seem to show time measurement and by some reading I learned that it gives the CPU cycle's per function and not time. Any suggestions in this regard will also be very helpful.. Thanks! Salman > Date: Sat, 7 Jul 2012 11:50:05 +0200 > From: t...@jollybox.de > To: python-list@python.org > Subject: Re: PyEval_SetProfile usage ? > > On 07/06/2012 11:40 PM, Salman Malik wrote: > > Hi All, > > > > I have used the Python's C-API to call some Python code in my c code and > > now I want to know how much time does my Python part of the program > > takes. I came across the PyEval_SetProfile API and am not sure how to > > use it. Do I need to write my own profiling function? > > You could have a look at the source code of the cProfile extension > module. I assume it uses the feature. > > In your case, what's wrong with simply measuring the time? > > > /* variables. */ > unsigned long delta_usec; > struct timeval t1, t2; > > /* get start time */ > gettimeofday (&t1, NULL); > > /* DO PYTHON STUFF */ > > /* get end time */ > gettimeofday (&t2, NULL); > > /* delta? */ > delta_usec = (t2.tv_sec - t1.tv_sec) * 1000 > + (signed)(t2.tv_usec - t1.tv_usec); > > /* if your Python code is called multiple times, do this for each one, > and (if you like) sum up the result. It's simpe enough, and you > don't have to mess with profiling function. > Alternatively, you could use a C profiler like Valgrind > */ > -- > http://mail.python.org/mailman/listinfo/python-list
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