JetBrains IDE VM Options

Generate .vmoptions configurations for JetBrains IDEs. Output as Markdown code blocks (one option per line, # comments). Do not generate files directly.

Workflow

1. Identify IDE version (blocking)

Read prerequisite-check.md for validation logic. IDE version determines the JDK (17 vs 21), which controls which GC collectors and flags are available. Never skip this step — wrong version means wrong recommendations.

2. Understand the user's goal

Match the user's problem to a tuning strategy: