J-cube ❲TOP × TUTORIAL❳

Tests on a synthetic dataset of 500,000 facts (4 dimensions, 2 measures):

// Insert facts cube.loadFact(new Fact() .dim("Time.Year", 2025) .dim("Product.Category", "Electronics") .measure("sales", 1200.0) .measure("units", 5)); j-cube

| Operation | Time (ms) | Memory (MB) | |------------------|-----------|-------------| | Load facts | 680 | 145 | | Slice (equality) | 12 | – | | Dice (3 filters) | 54 | – | | Roll‑up (2 levels)| 210 | 78 (cache) | | Full cube export | 340 | – | Tests on a synthetic dataset of 500,000 facts