Load Testing

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https://github.com/joerick/pyinstrument 

Example of a profile using pyinstrument, writing output to a file:

from pyinstrument import Profiler
profiler = Profiler(use_signal=False)
profiler.start()
# Do stuff here
profiler.stop()
 
# write profile data to file
with open('my.log', 'w') as f:
  f.write(profiler.output_text())

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SnakeViz

Here are the steps to profile your python code with cProfile and then view the results using RunSnakeRunusing SnakeViz.

1. 1. export VAGRANT_X11=1
   2. vagrant ssh
   3. First time only:
      
      1. sudo pip install wxPython
      2. sudo apt-get install python-profiler python-wxgtk2.8 python-setuptools
      3. sudo pip install SquareMap RunSnakeRun
      sudo Install SnakeViz.  Please update this document with the steps you used if you do it.
   4. sudo su edxapp

   5. Add the following to the code that you want to profile

      Profiling block

      
      

       

      import cProfile import uuid pr = cProfile.Profile() pr.enable() try from openedx.core.djangoapps.performance.utils import collect_profile with collect_profile:     <python_code_to_profile> finally:     pr.disable()     pr.dump_stats("<filepath>_{0}_<git_hash>.profile".format(uuid.uuid4()))

   6. Then use RunSnake SnakeViz by issuing:

      1. runsnake snakeviz DIRECTORY/FILE_NAME.profile

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