Re: [Rd] profiling C code

From: Simon Urbanek <>
Date: Tue 21 Feb 2006 - 19:14:41 GMT

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.

Simon mailing list Received on Wed Feb 22 06:16:48 2006

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