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|
{
"experiment": "Pure Workbench charge / handwritten JavaScript reference",
"environment": {
"startedAt": "2026-09-22T10:54:56.773Z",
"completedAt": "2026-09-22T10:54:57.201Z",
"node": "v24.20.0",
"v8": "13.6.233.17-node.53",
"platform": "linux",
"osRelease": "6.18.39+rpt-rpi-2712",
"architecture": "arm64",
"cpuModel": "Cortex-A76",
"logicalCPUs": 4,
"availableParallelism": 4,
"affinityControlled": false,
"powerControlled": false,
"command": "node /home/eunhhu/work/pure/prototypes/workbench/compare.mjs --output prototypes/workbench/results/2026-09-22-linux-aarch64/comparison.json"
},
"artifacts": {
"charge": {
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"sha256": "8d69d9fd51d44ab754d560eb7ff5102ea8a34540753cd7170b3bd800e4294f56"
},
"baseline": {
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},
"runtime": {
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"sha256": "7819737fa37f058e9134f2cc64c5dc2497cece9b364d5409f98e59ac979fa698"
},
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},
"wasm": {
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"sha256": "3e2184d515407fcbd422becb56e5dca93fd40feb07475165a0cdbd187e33a0c8"
},
"harness": {
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"sha256": "f304cd9191fdf737777a8286e223ee32a483a64ba6cfd80fcf9d4c4a5b1bb6d8"
}
},
"correctness": {
"passed": true,
"checkedSnapshots": 6664,
"checkedNumbers": 126616,
"maxAbsoluteDifference": 0,
"absoluteTolerance": 1e-11,
"relativeTolerance": 1e-12,
"checkedFields": [
"states",
"all view fields",
"tick",
"held input names"
],
"traceSha256": "db8110b5aa105921dea390950fed8bcb5ff9a3dc8929f8d368bfd24453b5001f",
"counts": {
"hostActions": 6663,
"frames": 6457,
"logicalDown": 52,
"logicalUp": 51,
"resets": 9,
"releaseAllCalls": 10,
"downCalls": 118,
"upCalls": 69,
"dispatchedEvents": 6560
}
},
"sources": {
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"bytes": 674,
"physicalLines": 34,
"nonblankLines": 34,
"sha256": "8d69d9fd51d44ab754d560eb7ff5102ea8a34540753cd7170b3bd800e4294f56"
},
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"physicalLines": 68,
"nonblankLines": 67,
"sha256": "dcd567e5568d3c798d6b48e555e6d54773963c70d23594c175706b061f8b043f"
},
"note": "Raw file size and line counts only; excludes HTML/host/compiler and does not establish authoring effort or DX quality."
},
"compilerMetrics": {
"sourceBytes": 674,
"sourceLines": 35,
"states": 4,
"inputs": 1,
"views": 4,
"handlers": 3,
"instructions": 66,
"maxStack": 3
},
"memory": {
"pure": {
"linearBytes": 65536,
"reservedEngineBytes": 19072,
"programReservedBytes": 9392,
"instructionBytes": 16,
"handlerBytes": 12,
"activeIRBytes": 1092,
"activeStateBytes": 32,
"stagingReservedBytes": 9392,
"evalStackBytes": 512
},
"note": "Wasm linear capacity and core layout counters; not process RSS or browser memory. No equivalent JS heap measurement collected. Do not add overlapping counters."
},
"timing": {
"seed": 20260922,
"warmupTracesPerImplementation": 5,
"trialsPerImplementation": 7,
"targetTrialMs": 12,
"calibration": {
"pureHostWasm": {
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"traces": 3,
"selectedRepetitions": 4
},
"handwrittenJavaScript": {
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"selectedRepetitions": 31
}
},
"traceCounts": {
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"frames": 6457,
"logicalDown": 52,
"logicalUp": 51,
"resets": 9,
"releaseAllCalls": 10,
"downCalls": 118,
"upCalls": 69,
"dispatchedEvents": 6560
},
"order": "Alternated each trial; Pure first on odd trials, JavaScript first on even trials.",
"included": "Host method dispatch, source-latch aggregation, state logic, and resets in the fixed trace. Pure additionally maintains generic VM/event diagnostics.",
"excluded": "Compilation, loading, snapshots, binding evaluation, DOM rendering, scene editing, and live apply.",
"normalization": "nsPerHostAction divides total time by calls including repeats, releaseAll and reset; nsPerDispatchedEvent also amortizes that host overhead.",
"limitations": "Single-machine batch throughput; no CPU pinning or energy/thermal control. Seven trial averages are not event latency percentiles. Fixed JS has no live program replacement, general compiler, or state migration; not feature-equivalent whole-product timing.",
"samples": [
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"pureOverJavaScriptMedianRatio": 10.66247051353076
}
}
}
|
