{ "schemaVersion": 1, "generatedAt": "2026-09-24T05:18:37.929Z", "environment": { "node": "v24.18.0", "platform": "win32 10.0.26200 (x64)", "cpu": "AMD Ryzen 5 5500 ", "logicalCores": 12 }, "methodology": { "samplesPerCase": 7, "targetSampleMs": 250, "warmupIterations": 3000, "scope": "Repeatedly call each default roll API with the same notation and read a numeric total. Internal caches may avoid parsing after warmup. No 3D rendering, network or startup time.", "randomSources": "Dice Core defaults to crypto.getRandomValues. The three comparison packages use their default random generators." }, "cases": [ { "id": "d20", "notation": "1d20", "label": "Single d20", "min": 1, "max": 20, "libraries": [ { "id": "dicecore", "name": "@erpg/dicecore", "version": "3.7.1", "iterationsPerSample": 9180, "medianOpsPerSecond": 27853, "samplesMs": [ 329.59, 333.78, 315.84, 407.81, 307.18, 287.06, 358.29 ] }, { "id": "rpg-dice-roller", "name": "@dice-roller/rpg-dice-roller", "version": "5.5.1", "iterationsPerSample": 23642, "medianOpsPerSecond": 154642, "samplesMs": [ 138.69, 113.41, 141.69, 168.89, 156.71, 160.47, 152.88 ] }, { "id": "randsum", "name": "@randsum/roller", "version": "4.0.0", "iterationsPerSample": 27926, "medianOpsPerSecond": 108360, "samplesMs": [ 228.68, 225.84, 246.6, 315.9, 310.8, 258.96, 257.71 ] }, { "id": "dice-roller-parser", "name": "dice-roller-parser", "version": "0.1.8", "iterationsPerSample": 84289, "medianOpsPerSecond": 317270, "samplesMs": [ 244.64, 241.46, 260.85, 308.68, 293.06, 265.67, 287.05 ] } ] }, { "id": "modifier", "notation": "2d6+3", "label": "Two dice and a modifier", "min": 5, "max": 15, "libraries": [ { "id": "dicecore", "name": "@erpg/dicecore", "version": "3.7.1", "iterationsPerSample": 7637, "medianOpsPerSecond": 25175, "samplesMs": [ 337.36, 303.36, 264.79, 336.63, 270.52, 261.41, 314.08 ] }, { "id": "rpg-dice-roller", "name": "@dice-roller/rpg-dice-roller", "version": "5.5.1", "iterationsPerSample": 20275, "medianOpsPerSecond": 76302, "samplesMs": [ 301.59, 306.47, 265.72, 286.41, 238.5, 264.92, 243.1 ] }, { "id": "randsum", "name": "@randsum/roller", "version": "4.0.0", "iterationsPerSample": 8811, "medianOpsPerSecond": 41482, "samplesMs": [ 251.15, 274.25, 199.8, 220.15, 212.4, 201.32, 185.43 ] }, { "id": "dice-roller-parser", "name": "dice-roller-parser", "version": "0.1.8", "iterationsPerSample": 35650, "medianOpsPerSecond": 200771, "samplesMs": [ 203.85, 200.99, 165.54, 196.47, 175.17, 159.89, 177.57 ] } ] }, { "id": "keep", "notation": "4d6kh3", "label": "Keep three highest of four", "min": 3, "max": 18, "equivalentNotation": { "randsum": "4d6L" }, "libraries": [ { "id": "dicecore", "name": "@erpg/dicecore", "version": "3.7.1", "iterationsPerSample": 6375, "medianOpsPerSecond": 20177, "samplesMs": [ 257.75, 260.51, 307.99, 315.95, 365.59, 380.28, 537.79 ] }, { "id": "rpg-dice-roller", "name": "@dice-roller/rpg-dice-roller", "version": "5.5.1", "iterationsPerSample": 28711, "medianOpsPerSecond": 110317, "samplesMs": [ 260.26, 230.86, 229.73, 286.86, 307.59, 337.48, 252.36 ] }, { "id": "randsum", "name": "@randsum/roller", "version": "4.0.0", "iterationsPerSample": 11530, "medianOpsPerSecond": 32240, "samplesMs": [ 340.37, 306.74, 291.91, 389.04, 401.01, 395.31, 357.63 ] }, { "id": "dice-roller-parser", "name": "dice-roller-parser", "version": "0.1.8", "iterationsPerSample": 48629, "medianOpsPerSecond": 196802, "samplesMs": [ 245.41, 242.64, 233.88, 247.1, 332.58, 273.92, 339.19 ] } ] }, { "id": "pool", "notation": "10d6", 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310.67 ] }, "seededCore": { "notation": "4d6kh3", "randomAlgorithm": "xoshiro128ss", "seed": "benchmark-seed", "iterationsPerSample": 29564, "medianOpsPerSecond": 96121, "samplesMs": [ 307.57, 284.15, 295.68, 342.81, 350.56, 368.57, 291.43 ] }, "checksum": 75380440 }