[R] gprof / prof of shared library

[ripley@stats.ox.ac.uk]

Did you build R with profiling (not R profiling, which must be disabled)  
compiler/linker options, as mentioned in the R-admin manual?

I've certainly profiled dyn.load-ed code on Solaris in R, but not 
recently.

On Fri, 28 Feb 2003 rex.dwyer at syngenta.com wrote:

> I have inherited a legacy S-plus system with about 10,000 lines of S and
> 10,000 lines of
> Fortran.  It's now running under R.  However, I would like to profile the
> fortran code with gprof or prof for performance tuning.  I've successfully
> linked the .so file into a simple C driver program and profiled, but I can't
> seem to get profiling to work when using dyn.load() to use it from R.  Do I
> have to use .C() to call some monitor initialization procedure explicitly?
> The /var/tmp/foo.so.profile file is never created.
> 
> I'm using R 1.6.2 and I have the same problem under both SunOS 5.8 and under
> Red Hat Linux 7.3 with 2.4.18-openmosix4smp kernel.
> 
> Has anyone had any success with this sort of profiling?

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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