Профилирование
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Описание
Profiling the code of FreeCAD helps find bottlenecks in the algorithms used to create or manipulate objects.
To profile Python code use the standard cProfile module to define start and end points to profile in the code.
import cProfile
pr = cProfile.Profile()
pr.enable()
# --------------------------------------
# Lines of code that you want to profile
# --------------------------------------
pr.disable()
pr.dump_stats("/tmp/profile.cprof")
Then install and use pyprof2calltree to convert the profile output into cachegrind input.
pyprof2calltree -i /tmp/profile.cprof -o /tmp/callgrind.out
Then visualize this information with kcachegrind for Linux or qcachegrind for Windows.
kcachegrind /tmp/callgrind.out
Resources
- The Python profilers,
cProfileandpython. - pyprof2calltree at PyPI; pyprof2calltree repository.
- FreeCAD's Python profiling tutorial.
- FreeCAD scripting: Python, Introduction to Python, Python scripting tutorial, FreeCAD Scripting Basics
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- Parametric objects: Scripted objects, Viewproviders (Custom icon in tree view)
- Scenegraph: Coin (Inventor) scenegraph, Pivy
- Graphical interface: Interface creation, Interface creation completely in Python (1, 2, 3, 4, 5), PySide, PySide examples beginner, intermediate, advanced
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