This slide explains about Profiling code in Odoo. And how to integrate with KCacheGrind to convert the profiling result into diagram

1. Odoo Profiler & Odoo
Debugging
August 1, 2017

2. Overview
Writing programs is fun, but making them fast can be a pain. Python programs
are no exception to that, but the basic profiling toolchain is actually not that
complicated to use.
Profiling application code helps you to identify time/space issues in the
application. You will get answers for typical questions like how long each
function/method takes to execute? how good is the application at memory
consumption etc.
There are multiple tools and libraries available for profiling in python world.

3. Long Time Ago…..

4. Now….
Let’s Break It!!!

5. Python Profiler:
CProfile

6. cProfile:
Since Python 2.5, Python provides a C module called cProfile
which has a reasonable overhead and offers a good enough
feature set. The basic usage goes down to:

7. cProfile:
Though you can also run a script with it, which turns out to be
handy

8. cProfile:
Though you can also run a script with it, which turns out to be
handy.
This prints out all the function called, with the time spend in

9. But, How to use cProfile in
Odoo???

10. cProfile integration for Odoo
Use odoo-profiler module from Vauxoo : https://github.com/Vauxoo/odoo-profiler
How to use it???
After installation, a player is add on the header bar, with these items:
- Start profiling
- Stop profiling
- Download stats: download stats file

11. Result

12. ● https://docs.python.org/2/library/profile.html
‘method’ Function name
‘cumtime’ Cumulative time
‘calls’ Calls count
‘rcalls’ Recursive calls
‘tottime’ Total time
‘tt_percall’ Total primitive call count

13. Advance Visualization with
KCacheGrind

14. KCacheGrind
Install kcachegrind
Install pyprof2calltree

15. Let’s do little modification on profiler module
profiler/controller/main.py
On dump function, change this line:
From
stats_path = os.path.join(dump_dir, ‘%s.stats’ % filename)
To
stats_path = os.path.join(dump_dir, ‘%s.cprof’ % filename)

16. How to use it?
run this command:
And let’s see the magic...

17. And the KCacheGrind window magically appears!

18. Reference:
● https://julien.danjou.info/blog/2015/guide-to-python-profiling-cprofile-concrete-case-carbonara
● https://github.com/Vauxoo/odoo-profiler/
● https://docs.python.org/2/library/profile.html
● https://hackernoon.com/line-profiling-python-odoo-9-as-example-864e9e3cdd7a

19. Another Presentation:
Performance Testing - Locust
https://docs.google.com/presentation/d/1T__jdgKY3U6SniD
WU9k6YBBHbi0kPvVLaqfYaqrEImg/edit#slide=id.g2f2aa203
ca_0_0

20. Thank You
Angga F. Ikrom
angga.faizul05@gmail.com
Someone who acts as software developer