Profiling PyGObject

Setup

General vpath build setup with jhbuild shell (x86_64):

• mkdir _build
  cd _build
  export PYTHON=`which python3.3`
  jhbuild shell
  ../configure --prefix=$JHBUILD_PREFIX --libdir=$JHBUILD_LIBDIR --with-python=$PYTHON
  make
  

Devise a simple script to profile (myproftest.py):

• from gi.repository import Gtk
  
  model = Gtk.ListStore(str, str, str, int, int, int)
  columns = [0, 1, 2, 3, 4, 5]
  row = ['a'*16, 'b'*16, 'c'*16, 1, 2, 3]
  
  for i in range(100000):
      model.insert_with_valuesv(-1, columns, row)
  

Python Profile

Use cProfile and kcachegrind (via pyprof2calltree):

• PROFTEST=myproftest
  $PYTHON -m cProfile -o $PROFTEST.pyprof $PROFTEST.py
  pyprof2calltree -i $PROFTEST.pyprof -k
  

C Extension (callgrind)

• PROFTEST=myproftest
  valgrind --tool=callgrind --callgrind-out-file=$PROFTEST.callgrind $PYTHON $PROFTEST.py
  kcachegrind $PROFTEST.callgrind
  

C Extension (gperftools)

Google PerfTools https://code.google.com/p/gperftools

• PROFTEST=myproftest
  $PYTHON -m yep -o $PROFTEST.py.prof $PROFTEST.py
  google-pprof --callgrind $PYTHON $PROFTEST.py.prof > $PROFTEST.callgrind
  kcachegrind $PROFTEST.callgrind