Published on March 12, 2014
Python memory profiling Barak Schiller
Your team wrote a python program to do station recommendations You run it After 10 min you machine grinds to a halt and a cryptic “out of memory” appears You go and make some coffee/tea So...
Memory management in python Once upon a time there were only references But then the reference cycles appeared and multiplied And then there was gc, and Guido saw that it was good
More on GC Two triggers: manual and on allocation threshold Internally tracks all containers and looks for cycles Common wisdom is to run it once after your initialisation phase, then every so often Avoid __del__! (same as in Java)
memory_profiler module Adds a @profile annotate Uses psutil to track memory consumption Covers C-side allocations Supports plotting memory usage over time
Code time! Now actually running!
objgraph Generates object dependency graphs Useful when you want to crawl a specific object
Good old printf debugging What I ended up using was… printf! Wire up psutil into the python-core logger Get a basic memory usage throughout the application lifetime
How do I profile memory usage in Python? ... I'm already familiar with the standard Python module for profiling runtime ... Python memory profiler.
Remember me? Register; Lost your login? Administration. User List; ... This patch is part of my Google Summer of Code project on Python memory profiling ...
Profiling email: py _setallocators ... Currently Python always uses the C library malloc/realloc/free as the underlying mechanism for requesting memory ...
How to write a memory efficient Python program? ... Try profiling memory ... as you are no longer creating as many Python values. Remember that a variable ...
profiling memory usage. Python Forums on ... home > topics > python > questions > profiling memory usage ... Remember that time Thotsakan punched Neil ...
High Performance Python: Profiling ... This article is part of an ongoing series about profiling Python programs ... execution time and memory ...
evennia - Python MUD/MUX/MUSH/MU* development ... evennia / evennia. Code. Issues 24. Pull requests 2. Wiki Pulse Graphs Profiling. Griatch edited this ...