Is my using gperftools to profile a R script with RCpp correct?

Question

I am trying to profile a R script with the last (third) approach in http://pj.freefaculty.org/blog/?p=140. I wonder if what I do (described in the following) is correct?

Answer 1

Instead of

google-pprof --text /usr/bin/R myprofile.log

if you issue sourceCpp with verbose=T you'll see the file path and generated object file...

Building shared library
--------------------------------------------------------

DIR: /tmp/RtmpyxYB19/sourcecpp_79831e029f

/usr/lib/R/bin/R CMD SHLIB -o 'sourceCpp_2.so' --->8---

so try using (in this instance)

google-pprof --text /tmp/RtmpyxYB19/sourcecpp_79831e029f/sourceCpp_2.so myprofile.log