Improve appjar efficiency - Githubissues

jarvisteach / appJar

Simple Tkinter GUIs in Python

http://appJar.info

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Improve appjar efficiency #273

Open jarvisteach opened 7 years ago

jarvisteach commented 7 years ago

A bunch of work needs to be done to analyse and clean up memory usage in appJar.

I'm sure there are lots of things that could be changed to reduce memory usage, as well as ensuring GC runs correctly #271

Things could also be sped up.

See here: http://effbot.org/pyfaq/how-does-python-manage-memory.htm And here: https://docs.python.org/3/library/gc.html

[ ] Remove deprecated code
[ ] Generators
[x] logging concatenation
[ ] memory leaks
[ ] slots
[ ] memory use
[ ] type hints - annotations
[x] use _ not __

jarvisteach commented 7 years ago

Some things to investigate:

Use generators for processing lists: https://jeffknupp.com/blog/2013/04/07/improve-your-python-yield-and-generators-explained/
Drop all string concatenation: https://stackoverflow.com/questions/5082452/python-string-formatting-vs-format
Look for memory leaks: https://pypi.python.org/pypi/guppy/
Investigate slots: https://stackoverflow.com/questions/472000/usage-of-slots
Analyse memory use:https://docs.python.org/2/library/resource.html , https://mg.pov.lt/objgraph/ , https://github.com/fabianp/memory_profiler

jarvisteach commented 7 years ago

Will replace all string concatenation with the old style formatter: "%s blah blah %s" % (1, 2)