https://github.com/vmprof/vmprof-python

vmprof - a statistical program profiler
https://github.com/vmprof/vmprof-python

c native profile profiler pypy python python-3 statistics vmprof

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vmprof - a statistical program profiler

• Host: GitHub
• URL: https://github.com/vmprof/vmprof-python
• Owner: vmprof
• License: other
• Created: 2014-12-14T19:54:54.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2024-09-29T07:09:19.000Z (3 months ago)
• Last Synced: 2025-01-02T18:09:04.800Z (9 days ago)
• Topics: c, native, profile, profiler, pypy, python, python-3, statistics, vmprof
• Language: C
• Homepage: https://vmprof.readthedocs.io
• Size: 3.12 MB
• Stars: 432
• Watchers: 13
• Forks: 56
• Open Issues: 60
• Metadata Files:
  • Readme: README-develop.md
  • License: LICENSE

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README

        
vmprof is a delicate piece of software. Following considerations should

be present when developing it.

Supported platform combinations (all combinations are supported):

* pypy (>=4.1), cpython

* windows, os x and linux

CPython should be tested on both TeamCity and Travis, PyPy is more

patchy since there is never a new enough version on either. Since PyPy

only exercises the pure python part, please test it each time you change

and interface between `_vmprof` and `vmprof`.

## Signals

On OS X and Linux we handle signal handlers. This means that we have

to be very very careful at what we can and cannot do. Notably, we can't

use malloc, locks or refcounting in any of the signal handlers. Python data

should be read-only and we should be prepared to read garbage or NULL

from anything.

On windows we use an external thread, so it's an imperative we freeze

the thread we're inspecting. It's possible that the interpreter state

handling is not thread safe in a way it should be, investigate how we

can improve it.