Benchmarks

bench.html — a js-framework-benchmark-style table (1,000 rows, list() + html``) plus the reactive core. Median of 5 runs, headless Chrome, ms:

DOM (1,000 rows) ms Core ms
create 17.1 (12.7 with delegateEvents) deep chain 100 computeds × 1,000 writes 9.4
replace all 14.3 fan-out 1,000 effects × 100 writes 10.4
update every 10th 0.5 diamond × 100,000 30.5
select row 0.1 batch 1,000 signals × 100 2.5
swap rows (2 insertBefore calls) 0.4 html`` × 1,000, static 3.5
remove row 0.1 html`` × 1,000, 2 signal bindings 4.4
append 1,000 13.4 reactive() filter 100k rows in an effect 30
create 10,000 146.6 (131.5 with delegateEvents) reactive() for..of 100k rows 20
clear 12.5 reactive() wrap 100k rows, heap 17 MB

Run it yourself: serve the folder and open bench.html — the numbers are in <pre> and window.__bench.