Performance Benchmarks

Real measured performance data from the What Framework test suite. All benchmarks run on Node.js v22.23.3.

Last updated October 7, 2026 · v0.13.10 · linux

Signals

Subscriber overhead is expected — effects run on every write.

Operation	Ops/Second	Time per Op
Computed create + read	592K ops/sec	0.0017ms
Computed chain (depth 5)	135K ops/sec	0.0074ms
Computed diamond dependency	255K ops/sec	0.0039ms

Operation	Ops/Second	Time per Op
Effect create + dispose	1.9M ops/sec	0.5µs
Effect with 10 signal deps	455K ops/sec	0.0022ms

Operation	Ops/Second	Time per Op
Batch 100 writes, 1 effect	373K ops/sec	0.0027ms
Batch 10 signals, 10 writes each	232K ops/sec	0.0043ms

Batching prevents intermediate computations, making 100 writes nearly as fast as 1.

Package	Size (gzipped)
what-framework (core)	~6.44 KB

Measured using gzip -9 compression.

All benchmarks run on Node.js v22.23.3 with the following approach:

• Warmup: 100–1000 iterations discarded before measurement

• Iterations: 500–10,000 per test (varies by operation cost)

• Timing: High-resolution performance.now()

• Calculation: Trimmed mean (discard top/bottom 10%)

• Environment: linux, Node.js v22.23.3

• Automated: Benchmarks regenerate every 3 days via CI

Source code available in /benchmark directory. Run with npm run bench.