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babylon

A checkout of the Babylon.js monorepo — the largest and slowest fixture in the suite.

  • Directory: suite/fixtures/babylon
  • Manifest name: @babylonjs/root, private
  • Dependencies: 0 runtime, 45 development at the root
  • 86 workspace packages under packages/
  • Notable files: nx.json, lerna.json, pnpm-workspace.yaml, six tsconfig.*.json, and a vlt.json that declares "workspaces": ["packages/**/*"]

What it exercises

Workspace resolution at scale. Every other fixture is a single package; this one is 86 of them with internal cross-dependencies, which is a different problem from installing a wide flat graph. It is the fixture that catches a tool handling workspace: protocol specifiers, hoisting, or link topology badly.

It is also the only fixture whose own vlt.json declares workspaces.

Variations

All install variations. No build, build-cache or run.

It is the main reason a full suite run takes roughly 40 minutes.

A note on reading its numbers

Absolute times here are large enough that cold-cache network variance matters more than in the small fixtures. Prefer the median and the standard deviation over the mean when comparing tools on babylon, and check exit_codes — a tool that partially fails on a monorepo this size can still post a plausible time, because the suite runs hyperfine with --ignore-failure.