[perf-scan] 2026-10-08 -- performance opportunities found
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Assessment
- Difficulty
- 1/5
- Estimated time
- Under an hour
- Newbie friendliness
- 83/100
- Issue type
- Bug
- Clarity
- Clearly specified
- Activity status
- Active
- Tech stack
- python, yaml
- Domain
- cli, performance
Research direction
Read src/apm_cli/commands/marketplace/plugin/__init__.py, especially the top-level import at line 10 and the helper around line 69 that uses YAML. First confirm with python -X importtime whether YAML is already loaded elsewhere; if not, move the import into that helper. Done when unrelated CLI startup no longer incurs this import and the plugin’s YAML handling still works.
Written by the indexing model from the issue text.
Description
Performance Scan - 2026-10-08
Automated scan of src/apm_cli/ for algorithmic performance anti-patterns.
1 finding(s) identified (low priority).
Findings
[E] Heavy top-level imports -- src/apm_cli/commands/marketplace/plugin/init.py:10
- Current:
import yamlat module level; it is loaded on every CLI startup that imports the marketplace plugin group, but yaml is used only in one helper (around line 69). - Proposed: lazy import, which removes the startup cost for unrelated commands.
- Fix: Move
import yamlinto the helper that callsyaml.YAMLErrorand the safe loader, or confirm viapython -X importtimethat it is already loaded elsewhere before changing.
Scan coverage
- src/apm_cli/ (488 files scanned)
- Patterns checked: A (quadratic loops), B (linear scan in loop),
C (unconditional expensive ops), D (redundant config parsing),
E (heavy top-level imports), F (sequential independent I/O)
Generated by Daily Performance Scanner · copilot · auto · 17.4 AIC · ⌖ 0.554 AIC · ⊞ 11.1K · ◷
- expires on Oct 15, 2026, 1:43 AM UTC
- Dominant language
- Python
- Stars
- 4k
- Forks
- 387
- Avg merge
- 5d 44m
- Merged PRs (30d)
- 60
Getting set up
- No Dockerfile or Docker Compose file
- Has a pull request template
- Read the contributing guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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