Avoid reconstructing psutil.Process repeatedly
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Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 30/100
- Issue type
- Refactor
- Clarity
- Needs clarification
- Activity status
- Stale
- Tech stack
- python
- Domain
- performance
Research direction
Start by locating TrackedRequest and the sampler call sites that create psutil.Process objects, then inspect how web-server forking affects process-level state. Done means reducing repeated Process construction while preserving correct behavior across forked workers; the issue provides no named tests or files.
Written by the indexing model from the issue text.
Description
A psutil.Process object is not that cheap to recreate (compared to other python objects):
In [2]: %timeit psutil.Process()
13.1 µs ± 101 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)
We use several of them - a couple of them per TrackedRequest to get current memory usage, and one per sampler call.
We should figure out some way of reducing this, by sharing an instance. A global wouldn't always work since web servers fork.
- Dominant language
- Python
- Stars
- 77
- Forks
- 19
- Avg merge
- 1d 9h
- Merged PRs (30d)
- 5
Contributor guide
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