[Rd] profiling C code
simon.urbanek at r-project.org
Tue Feb 21 20:14:41 CET 2006
On Feb 20, 2006, at 7:18 PM, Ross Boylan wrote:
> 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.
If you have an OS X box to work on, then you have a handful of really
excellent tools. Have a look at Shark from the CHUD tools (in /
Developer/Applications/Performance Tools) Although it's sampling-
based (.i.e. no need to gprof - just run sample running R), it is
remarkably accurate and has ton of features for what they call 'data
mining' of the profile data - including drill-down to source code and
even assembly level. You can read a bit at
It proves to be really useful and very flexible.
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