BenchmarksTimings (ms)Create 1kLLui23.5 msSolid23.5 msSvelte23.4 msvanilla22.6 msReact26.7 msElm37.5 msReplace 1kLLui25.3 msSolid25.6 msSvelte26.0 msvanilla23.4 msReact32.2 msElm31.5 msUpdate 10thLLui14.8 msSolid14.7 msSvelte15.1 msvanilla13.4 msReact16.7 msElm27.5 msSelectLLui3.3 msSolid4.4 msSvelte6.1 msvanilla4.9 msReact5.6 msElm22.4 msSwapLLui11.3 msSolid17.2 msSvelte17.3 msvanilla15.1 msReact106.5 msElm27.6 msRemoveLLui11.6 msSolid11.9 msSvelte12.4 msvanilla11.3 msReact14.5 msElm29.0 msCreate 10kLLui235.3 msSolid235.1 msSvelte237.3 msvanilla219.7 msReact420.4 msElm608.6 msAppend 1kLLui27.9 msSolid27.0 msSvelte27.2 msvanilla26.2 msReact31.4 msElm38.6 msClearLLui12.5 msSolid12.3 msSvelte11.9 msvanilla9.7 msReact19.1 msElm22.9 msMemory (MB)ReadyLLui0.6 MBSolid0.5 MBSvelte0.7 MBvanilla0.6 MBReact1.2 MBElm0.7 MBRun 1kLLui3.2 MBSolid2.6 MBSvelte2.9 MBvanilla1.8 MBReact4.4 MBElm3.6 MBClearLLui1.0 MBSolid0.7 MBSvelte1.0 MBvanilla0.6 MBReact2.0 MBElm1.0 MBBundle Size (KB)UncompressedLLui26.7 KBSolid11.5 KBSvelte34.3 KBvanilla11.3 KBReact190.3 KBElm31.7 KBGzippedLLui7.5 KBSolid4.5 KBSvelte12.2 KBvanilla2.5 KBReact51.4 KBElm10.4 KBRaw Data & MethodologyResults from js-framework-benchmark (krausest). All frameworks measured under identical conditions. Timings (ms) Raw data Operation LLui Solid Svelte vanilla React Elm Create 1k 23.5 ms 23.5 ms 23.4 ms 22.6 ms 26.7 ms 37.5 ms Replace 1k 25.3 ms 25.6 ms 26.0 ms 23.4 ms 32.2 ms 31.5 ms Update 10th 14.8 ms 14.7 ms 15.1 ms 13.4 ms 16.7 ms 27.5 ms Select 3.3 ms 4.4 ms 6.1 ms 4.9 ms 5.6 ms 22.4 ms Swap 11.3 ms 17.2 ms 17.3 ms 15.1 ms 106.5 ms 27.6 ms Remove 11.6 ms 11.9 ms 12.4 ms 11.3 ms 14.5 ms 29.0 ms Create 10k 235.3 ms 235.1 ms 237.3 ms 219.7 ms 420.4 ms 608.6 ms Append 1k 27.9 ms 27.0 ms 27.2 ms 26.2 ms 31.4 ms 38.6 ms Clear 12.5 ms 12.3 ms 11.9 ms 9.7 ms 19.1 ms 22.9 ms Relative to LLui Operation vs Solid vs Svelte vs vanilla vs React vs Elm Create 1k = = -4% +14% +60% Replace 1k +1% +3% -8% +27% +25% Update 10th = +2% -9% +13% +86% Select +33% +85% +48% +70% +579% Swap +52% +53% +34% +842% +144% Remove +3% +7% -3% +25% +150% Create 10k = = -7% +79% +159% Append 1k -3% -3% -6% +13% +38% Clear -2% -5% -22% +53% +83% Positive = peer is slower than LLui. Bold = LLui wins by >3%. Memory (MB) Raw data Operation LLui Solid Svelte vanilla React Elm Ready 0.6 MB 0.5 MB 0.7 MB 0.6 MB 1.2 MB 0.7 MB Run 1k 3.2 MB 2.6 MB 2.9 MB 1.8 MB 4.4 MB 3.6 MB Clear 1.0 MB 0.7 MB 1.0 MB 0.6 MB 2.0 MB 1.0 MB Bundle Size (KB) Raw data Operation LLui Solid Svelte vanilla React Elm Uncompressed 26.7 KB 11.5 KB 34.3 KB 11.3 KB 190.3 KB 31.7 KB Gzipped 7.5 KB 4.5 KB 12.2 KB 2.5 KB 51.4 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.