[Rd] profiling C code

[Torsten Hothorn]

On Mon, 20 Feb 2006, Liaw, Andy wrote:

> The last time I tried I didn't have much luck.  The gprof manual I could
> find seems to indicate that it can not profile code that are dynamically
> loaded.  (I was trying on Linux.)  The R source seems to hint otherwise.
> I'd very much appreciate pointers as well.
>

I happily use `oprofile' (web page at http://oprofile.sourceforge.net/) 
for profiling shared libs. You simply start a daemon, run your R code, 
and get the results. `opannotate' labels lines in C source files with the 
corresponding systime, very very cute.

Best,

Torsten

> Andy
>
> From: Ross Boylan
>>
>> Does anyone have any advice about profiling C/C++ code in a package
>> under R?  Does R need to be built specially for this to work?
>>
>> The FAQ has some entries about profiling but they cover R level
>> profiling; I'm try to get at the C++ code I've written that is called
>> from R.
>>
>> Primary target is Mac OS X.
>>
>> Thanks.
>>
>> Ross Boylan
>>
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>>
>
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