ECO-CMP-PY-020 — Synchronous subprocess invocation in hot path¶

Category: Computation (CMP)
Family: Python (PY)
Layer: Code
Tier: 2
Severity: warning
Tags: python, subprocess, latency
Legacy ID: ECO-PY-020

Summary¶

Blocking subprocess calls increase latency and consume resources.

External process calls are expensive and unpredictable under load.

{
  "confidence": 0.7,
  "notes": "High variance; often spikes p99.",
  "type": "latency"
}

{
  "languages": [
    "python"
  ],
  "method": "ast"
}

{
  "guidance": "Avoid subprocess in request paths; cache results or move to background jobs.",
  "tradeoffs": "Added system complexity."
}

{
  "system_layers": [
    "code"
  ]
}