Benchmarks

Results from js-framework-benchmark (krausest). All frameworks measured under identical conditions.

Timings (ms)

Raw data

Operation	LLui	Solid	Svelte	vanilla	Elm
Create 1k	21.3 ms	21.2 ms	21.4 ms	20.6 ms	29.6 ms
Replace 1k	24.7 ms	23.7 ms	24.4 ms	22.1 ms	30.0 ms
Update 10th	14.6 ms	14.2 ms	14.3 ms	12.6 ms	17.5 ms
Select	3.2 ms	4.0 ms	6.1 ms	3.1 ms	5.9 ms
Swap	16.8 ms	16.3 ms	16.3 ms	14.2 ms	18.4 ms
Remove	11.9 ms	11.1 ms	11.4 ms	10.7 ms	13.5 ms
Create 10k	229.2 ms	220.4 ms	223.6 ms	206.7 ms	259.8 ms
Append 1k	26.4 ms	24.7 ms	24.7 ms	24.1 ms	30.9 ms
Clear	11.5 ms	11.8 ms	11.5 ms	9.1 ms	13.2 ms

Relative to LLui

Operation	vs Solid	vs Svelte	vs vanilla	vs Elm
Create 1k	=	=	-3%	+39%
Replace 1k	-4%	-1%	-11%	+21%
Update 10th	-3%	-2%	-14%	+20%
Select	+25%	+91%	-3%	+84%
Swap	-3%	-3%	-15%	+10%
Remove	-7%	-4%	-10%	+13%
Create 10k	-4%	-2%	-10%	+13%
Append 1k	-6%	-6%	-9%	+17%
Clear	+3%	=	-21%	+15%

Positive = peer is slower than LLui. Bold = LLui wins by >3%.

Memory (MB)

Raw data

Operation	LLui	Solid	Svelte	vanilla	Elm
Ready	0.7 MB	0.6 MB	0.7 MB	0.6 MB	0.7 MB
Run 1k	2.4 MB	2.7 MB	2.9 MB	1.9 MB	3.7 MB
Clear	0.9 MB	0.8 MB	1.0 MB	0.7 MB	1.0 MB

Bundle Size (KB)

Raw data

Operation	LLui	Solid	Svelte	vanilla	Elm
Uncompressed	24.9 KB	11.5 KB	34.3 KB	11.3 KB	31.7 KB
Gzipped	8.2 KB	4.5 KB	12.2 KB	2.5 KB	10.4 KB

Methodology

• Tool: js-framework-benchmark by Stefan Krause
• Browser: Chrome (headful), CPU throttling 4x
• Iterations: 15 per benchmark, median reported
• Machine: MacBook Pro M5 Max, 128 GB RAM
• LLui version: Latest from opt branch with all compiler optimizations enabled
• Data source: benchmarks/jfb-baseline.json — raw JSON

Numbers fluctuate ±5% between runs. Differences <5% should be considered noise.