Performance Test

Set up, run, and analyze performance tests with an iterative improvement cycle.

Usage

/perf-test src/utils/parser.ts           # Profile a file/module
/perf-test calculateTotal                 # Profile a specific function
/perf-test /api/users                     # Load test an endpoint
/perf-test checkout-flow                  # E2E scenario test
/perf-test                                # Ask what to test

Gotchas

• First runs include JIT/cold-start overhead. Always configure warmup passes in the proposal — without them, baseline measurements are inflated and improvement percentages are misleading.
• Before/after comparisons are invalid if run on different machines, different concurrency levels, or with different iteration counts. Lock test configuration between runs.

Workflow