io.github.rog0x/perf

Benchmark JavaScript code execution. Run a snippet N times and measure min/max/avg/p95/p99 time and ops/sec. Optionally compare two implementations.

Analyze Node.js memory usage: heap used/total, RSS, external, array buffers. Tracks snapshots over time and detects potential memory leaks via growth trend analysis.

Estimate Big O complexity from empirical data. Provide input sizes and corresponding execution times to get the best-fit complexity class (O(1), O(log n), O(n), O(n log n), O(n^2), O(n^3), O(2^n)) with confidence scores and growth curve.

Analyze a JavaScript bundle file: raw size, gzip estimate, detected modules, largest modules, and tree-shaking opportunities.

Run a simple HTTP load test: send N concurrent requests to a URL, measure response times, error rate, throughput (req/sec), and percentile latencies.