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PERF_BASELINES.md

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Performance baselines (smoke-level)

These thresholds are intentionally conservative and intended as regression guards, not absolute hardware-independent benchmarks.

Core

  • Hit-testing smoke (packages/core/src/__tests__/perf-smoke.test.ts):
    • 2000 dispatches on ~300-leaf tree: <= 200 ms
  • Caret geometry smoke (packages/core/src/__tests__/perf-smoke.test.ts):
    • 5000 lookups across many measured lines: <= 300 ms

Server protocol

  • Geometry diff smoke (packages/server/src/__tests__/protocol-perf-smoke.test.ts):
    • 60 burst diffs on a depth-4 breadth-4 tree: <= 500 ms

Updating baselines

When intentionally changing algorithms:

  1. Measure locally and in CI.
  2. Update thresholds with rationale in commit/release notes.
  3. Ensure limits remain defensive enough to catch accidental regressions.
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