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