{ "schemaVersion": 1, "date": "2026-10-08", "title": "1 GB and above: JSON viewer browser benchmark", "hardware": { "os": "Microsoft Windows 10 Pro", "osVersion": "10.0.19045", "cpu": "AMD Ryzen 9 5980HX with Radeon Graphics", "cores": 8, "logicalProcessors": 16, "ramBytes": 50902355968 }, "browser": { "name": "Chrome for Testing", "version": "150.0.7871.49", "sha256": "9baf374810f0f8e7152217fc769d62863a3197d2324567df6569f84281363c46", "headed": true, "sandboxEnabled": true }, "artifactLoading": "CWS-delivered runtime files and manifests verified unchanged; loaded unpacked in fresh profiles. Store verification metadata was absent afterward and original CRX/ZIP is retained. Not Store-installed profiles.", "extensions": { "formatter": { "name": "JSON Formatter", "version": "0.10.2", "storeId": "bcjindcccaagfpapjjmafapmmgkkhgoa", "storeUrl": "https://chromewebstore.google.com/detail/bcjindcccaagfpapjjmafapmmgkkhgoa", "crxSha256": "5e0ebde71ee60f997a9f5fc0850e6ae4a9f67006dbf662f00507f99e957c2b21" }, "jsonvue": { "name": "JSONVue", "version": "0.2.3", "storeId": "chklaanhfefbnpoihckbnefhakgolnmc", "storeUrl": "https://chromewebstore.google.com/detail/chklaanhfefbnpoihckbnefhakgolnmc", "crxSha256": "347bc742cbcf46d4ff075bc640d1364d464e4db3c2be0db3fbcb1b96500425c8" }, "viewerpro": { "name": "JSON Viewer Pro", "version": "1.0.7", "storeId": "eifflpmocdbdmepbjaopkkhbfmdgijcc", "storeUrl": "https://chromewebstore.google.com/detail/eifflpmocdbdmepbjaopkkhbfmdgijcc", "crxSha256": "e0f48ef247baed9e67fb0fb7d866d5555ecf70dac4abd0da2b3017aea19f79d7" }, "allinone": { "name": "JSON All-in-One", "version": "1.0.9", "storeId": "gjcjgbhocdlnhnmiddkhkiobnjaffmin", "storeUrl": "https://chromewebstore.google.com/detail/gjcjgbhocdlnhnmiddkhkiobnjaffmin", "crxSha256": "473628ea2c08bba58f1f90356d80fabd974ea03cd6125967a0f77a877560c2a0" } }, "fixtures": [ { "bytes": 300000000, "sha256": "997e675e4ee2577475c50bbd2bcc77493b23fb11b87b7a142c68d2dc2eabddb4", "records": 292968, "recordBytes": 1023, "paddingBytes": 767, "shape": "root array; each record contains nine-digit string index, name, nested marker/boolean/three-element numeric array, repeated x payload; deterministic whitespace padding before closing array" }, { "bytes": 500000000, "sha256": "cb873a3aa1fce6745fdca537b33c35afec18999fc02ea05edf9bca1a9db2f65f", "records": 488281, "recordBytes": 1023, "paddingBytes": 255, "shape": "root array; each record contains nine-digit string index, name, nested marker/boolean/three-element numeric array, repeated x payload; deterministic whitespace padding before closing array" }, { "bytes": 1000000000, "sha256": "28bdb3256f1ee7b659318937de592686d7c5decbaf4b09a74cabc8c5828ba8ad", "records": 976562, "recordBytes": 1023, "paddingBytes": 511, "shape": "root array; each record contains nine-digit string index, name, nested marker/boolean/three-element numeric array, repeated x payload; deterministic whitespace padding before closing array" }, { "bytes": 2000000000, "sha256": "ce923893df22b9f7d3c18935fc3ca370b864148f140f83d8df4d04b1ade4a832", "records": 1953124, "recordBytes": 1023, "paddingBytes": 1023, "shape": "root array; each record contains nine-digit string index, name, nested marker/boolean/three-element numeric array, repeated x payload; deterministic whitespace padding before closing array" } ], "summaries": [ { "key": "formatter", "bytes": 300000000, "trials": 1, "counts": { "unsupported_size_raw": 1 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 1, "medianMs": 4400.5830000000005, "minMs": 4400.5830000000005, "maxMs": 4400.5830000000005 }, "labels": [ "measured-v3-formatter-300000000-r1-cold" ] }, { "key": "formatter", "bytes": 500000000, "trials": 2, "counts": { "crash": 2 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 2, "medianMs": 2872.2986500000006, "minMs": 2871.4892, "maxMs": 2873.1081000000013 }, "labels": [ "measured-v3-formatter-500000000-r1-cold", "measured-v3-formatter-500000000-r2-cold" ] }, { "key": "formatter", "bytes": 1000000000, "trials": 2, "counts": { "crash": 2 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 2, "medianMs": 3808.43765, "minMs": 3675.6774000000005, "maxMs": 3941.1978999999997 }, "labels": [ "measured-formatter-1000000000-r1-cold", "measured-formatter-1000000000-r2-cold" ] }, { "key": "formatter", "bytes": 2000000000, "trials": 0, "counts": {}, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": null, "labels": [] }, { "key": "jsonvue", "bytes": 300000000, "trials": 2, "counts": { "extension_error_raw_64MiB": 2 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 2, "medianMs": 60157.6486, "minMs": 60138.0239, "maxMs": 60177.2733 }, "labels": [ "measured-v3-jsonvue-300000000-r1-cold", "measured-v3-jsonvue-300000000-r2-cold" ] }, { "key": "jsonvue", "bytes": 500000000, "trials": 2, "counts": { "crash": 2 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 2, "medianMs": 5641.183950000001, "minMs": 3075.0642000000007, "maxMs": 8207.3037 }, "labels": [ "measured-v3-jsonvue-500000000-r1-cold", "measured-v3-jsonvue-500000000-r2-cold" ] }, { "key": "jsonvue", "bytes": 1000000000, "trials": 2, "counts": { "crash": 2 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 2, "medianMs": 3690.50395, "minMs": 3682.1092, "maxMs": 3698.8986999999997 }, "labels": [ "measured-jsonvue-1000000000-r1-cold", "measured-jsonvue-1000000000-r2-cold" ] }, { "key": "jsonvue", "bytes": 2000000000, "trials": 0, "counts": {}, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": null, "labels": [] }, { "key": "viewerpro", "bytes": 300000000, "trials": 3, "counts": { "extension_render_error_blank": 3 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 3, "medianMs": 60098.3638, "minMs": 60034.80080000001, "maxMs": 60105.45100000001 }, "labels": [ "measured-v3-viewerpro-300000000-r1-cold", "measured-v3-viewerpro-300000000-r2-cold", "measured-v3-viewerpro-300000000-r3-cold" ] }, { "key": "viewerpro", "bytes": 500000000, "trials": 2, "counts": { "crash": 2 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 2, "medianMs": 3258.7504000000044, "minMs": 3178.9052000000083, "maxMs": 3338.5956000000006 }, "labels": [ "measured-v3-viewerpro-500000000-r1-cold", "measured-v3-viewerpro-500000000-r2-cold" ] }, { "key": "viewerpro", "bytes": 1000000000, "trials": 2, "counts": { "crash": 2 }, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": { "n": 2, "medianMs": 3576.0323, "minMs": 3486.6823000000004, "maxMs": 3665.3822999999998 }, "labels": [ "measured-viewerpro-1000000000-r1-cold", "measured-viewerpro-1000000000-r2-cold" ] }, { "key": "viewerpro", "bytes": 2000000000, "trials": 0, "counts": {}, "phaseCounts": { "structured": 0, "fullIngestion": 0, "confirmedInteraction": 0 }, "firstStructured": null, "fullIngestion": null, "useful": null, "interactionLatency": null, "outcomeTime": null, "labels": [] }, { "key": "allinone", "bytes": 300000000, "trials": 3, "counts": { "success": 3 }, "phaseCounts": { "structured": 3, "fullIngestion": 3, "confirmedInteraction": 3 }, "firstStructured": { "n": 3, "medianMs": 34144.73869999999, "minMs": 33459.554899999996, "maxMs": 38687.985199999996 }, "fullIngestion": { "n": 3, "medianMs": 34145.89649999999, "minMs": 33460.579699999995, "maxMs": 38688.8542 }, "useful": { "n": 3, "medianMs": 34302.46729999999, "minMs": 33681.9003, "maxMs": 38845.1236 }, "interactionLatency": { "n": 3, "medianMs": 155.75860000000102, "minMs": 155.55040000000008, "maxMs": 220.46560000001045 }, "outcomeTime": { "n": 3, "medianMs": 34303.3796, "minMs": 33682.929500000006, "maxMs": 38846.5753 }, "labels": [ "measured-v3-allinone-300000000-r1-cold", "measured-v3-allinone-300000000-r2-cold", "measured-v3-allinone-300000000-r3-cold" ] }, { "key": "allinone", "bytes": 500000000, "trials": 3, "counts": { "success": 3 }, "phaseCounts": { "structured": 3, "fullIngestion": 3, "confirmedInteraction": 3 }, "firstStructured": { "n": 3, "medianMs": 16979.942200000005, "minMs": 16410.079699999973, "maxMs": 16997.277000000002 }, "fullIngestion": { "n": 3, "medianMs": 16980.85550000002, "minMs": 16410.892099999997, "maxMs": 16998.201900000015 }, "useful": { "n": 3, "medianMs": 17357.763600000006, "minMs": 16738.594499999977, "maxMs": 17358.92720000002 }, "interactionLatency": { "n": 3, "medianMs": 203.85420000000158, "minMs": 201.97280000001774, "maxMs": 238.01210000002175 }, "outcomeTime": { "n": 3, "medianMs": 17359.106300000014, "minMs": 16739.522199999978, "maxMs": 17359.855400000015 }, "labels": [ "measured-v3-allinone-500000000-r1-cold", "measured-v3-allinone-500000000-r2-cold", "measured-v3-allinone-500000000-r3-cold" ] }, { "key": "allinone", "bytes": 1000000000, "trials": 3, "counts": { "success": 3 }, "phaseCounts": { "structured": 3, "fullIngestion": 3, "confirmedInteraction": 3 }, "firstStructured": { "n": 3, "medianMs": 5430.7026, "minMs": 5217.741500000004, "maxMs": 5453.7117 }, "fullIngestion": { "n": 3, "medianMs": 25291.0024, "minMs": 25005.740300000005, "maxMs": 25313.785 }, "useful": { "n": 3, "medianMs": 25547.5266, "minMs": 25248.37169999999, "maxMs": 25583.2342 }, "interactionLatency": { "n": 3, "medianMs": 116.99720000001253, "minMs": 109.66990000000078, "maxMs": 169.6262999999999 }, "outcomeTime": { "n": 3, "medianMs": 25549.0332, "minMs": 25249.430800000002, "maxMs": 25584.8835 }, "labels": [ "measured-v3-allinone-1000000000-r1-cold", "measured-v3-allinone-1000000000-r3-cold", "measured-v3-extra-1791445955028-allinone-1000000000-r1-cold" ] }, { "key": "allinone", "bytes": 2000000000, "trials": 4, "counts": { "success": 2, "input_ack_timeout_unconfirmed": 2 }, "phaseCounts": { "structured": 4, "fullIngestion": 4, "confirmedInteraction": 2 }, "firstStructured": { "n": 4, "medianMs": 4868.764599999995, "minMs": 4728.733700000012, "maxMs": 4940.031300000001 }, "fullIngestion": { "n": 4, "medianMs": 45656.00855, "minMs": 45342.723, "maxMs": 46103.432700000005 }, "useful": { "n": 2, "medianMs": 45779.3104, "minMs": 45621.8394, "maxMs": 45936.78140000001 }, "interactionLatency": { "n": 2, "medianMs": 156.9225499999884, "minMs": 154.71590000001015, "maxMs": 159.12919999996666 }, "outcomeTime": { "n": 4, "medianMs": 48294.505850000016, "minMs": 45623.20259999999, "maxMs": 51118.9742 }, "labels": [ "measured-v3-allinone-2000000000-r1-cold", "measured-v3-allinone-2000000000-r2-cold", "measured-v3-allinone-2000000000-r3-cold", "measured-v3-extra-1791446764693-allinone-2000000000-r1-cold" ] } ], "excludedRunIds": [ "measured-v2-allinone-1000000000-r1-cold", "measured-v3-allinone-1000000000-r2-cold", "untimed-trial-1791445011620-viewerpro-1000000-r1-cold", "untimed-trial-allinone-1000000-r1-cold", "untimed-trial-formatter-1000000-r1-cold", "untimed-trial-jsonvue-1000000-r1-cold", "untimed-trial-viewerpro-1000000-r1-cold" ], "limitations": [ "Synthetic root-array workload on one machine/browser; results do not cover every JSON shape or operation.", "First structured content may be collapsed records. Useful interaction occurs only after exact full-ingestion proof for JSON All-in-One.", "Renderer crashes were observed; an OOM cause was not established.", "Fresh browser/profile cold runs; OS file cache not purged; no warm matrix.", "Two initial successful 1 GB runs used two animation frames; later runs use 50 ms settling. Polling is quantized at 200 ms.", "The 2 GB competitor scenarios were not run after repeat 1 GB crashes; not run is not an inferred failure." ], "harnessExclusions": [ { "scope": "Viewer Pro 1 MB untimed operation setup", "outcome": "harness click miss", "reason": "Center of nested property text did not trigger collapse; actual triangle is a CSS pseudo-element 1em to the left. The final harness clicks the triangle and verifies marker disappears and reappears. One earlier same-label trial file was overwritten during harness development; these trials are excluded from timing summaries." }, { "scope": "JSON All-in-One 1 GB initial measured attempt", "outcome": "harness-invalid", "reason": "The 1MB gate expected the nested marker initially expanded. Large documents default to collapsed array records. Bounded inspection during this attempt confirmed progress Done with fetchedBytes=processedBytes=1000000000 and parsed/renderedLines=976564, while the first record was collapsed. No timing from this attempt is publishable. The owned runner was stopped and its profile retained; subsequent process inspection found no remaining benchmark Chrome processes. Final harness opens first record and nested object with mouse clicks, includes that effort in inspected-data time, and separately verifies full ingestion and a post-ingestion operation." }, { "scope": "JSON All-in-One 1 GB active-ingestion interaction attempt", "outcome": "superseded-protocol", "reason": "The marker interaction succeeded at 23.942 seconds, but the progress counters subsequently read Done with fetched/processed zero and a different rendered-line count. Exact complete-source qualification was therefore not established by that attempt. The final protocol observes exact full ingestion before any expansion. No outcome is joined across attempts." }, { "scope": "JSON All-in-One 1 GB passive protocol repetition 2", "outcome": "harness-paint-gate-inconclusive", "reason": "DOM polls repeatedly returned ready=true with visible record geometry, but the separate requestAnimationFrame promise timed out. Independent bounded inspection found Done, fetchedBytes=processedBytes=1000000000 and rendered/parsedLines=976564. The raw timeout is retained but excluded from comparative product results. A 50 ms settling delay replaced rAF; a fresh additional cold repetition passed. Two earlier successful repetitions retained their two-rAF delay, a disclosed timing quantization difference. No background-throttling bypass flags were added." }, { "scope": "JSONVue 300 MB redundant third confirmation", "outcome": "interrupted-not-qualified", "reason": "After two completed 60-second raw-view attempts both exposed the same fatal runtime.sendMessage 64 MiB error, the coordinator requested no redundant third wait. Only the precisely identified owned Node runner was stopped; two completed attempts remain the denominator. JSONVue 500 MB is executed separately." } ], "integrity": [ { "key": "formatter", "crxSha256": "5e0ebde71ee60f997a9f5fc0850e6ae4a9f67006dbf662f00507f99e957c2b21", "verifiedFiles": 7, "runtimePayloadUnchanged": true, "metadataDifferences": [ { "path": "_metadata/verified_contents.json", "state": "absent after browser runs; preserved in original CRX/ZIP", "originalSha256": "884ced6c1c7f13f6ec4a80686e0644fc7e65ebb50e82288cda540234d3a19a61" } ] }, { "key": "jsonvue", "crxSha256": "347bc742cbcf46d4ff075bc640d1364d464e4db3c2be0db3fbcb1b96500425c8", "verifiedFiles": 23, "runtimePayloadUnchanged": true, "metadataDifferences": [ { "path": "_metadata/verified_contents.json", "state": "absent after browser runs; preserved in original CRX/ZIP", "originalSha256": "89eb920c62bd92f95318a1933ec41be1e83eb654ad9d00c144ecac75ddad2d42" } ] }, { "key": "viewerpro", "crxSha256": "e0f48ef247baed9e67fb0fb7d866d5555ecf70dac4abd0da2b3017aea19f79d7", "verifiedFiles": 22, "runtimePayloadUnchanged": true, "metadataDifferences": [ { "path": "_metadata/verified_contents.json", "state": "absent after browser runs; preserved in original CRX/ZIP", "originalSha256": "0634703d94450222e1784aef395e28366595995df743cbfc2e28a64b0d5a1c86" } ] }, { "key": "allinone", "crxSha256": "473628ea2c08bba58f1f90356d80fabd974ea03cd6125967a0f77a877560c2a0", "verifiedFiles": 198, "runtimePayloadUnchanged": true, "metadataDifferences": [ { "path": "_metadata/verified_contents.json", "state": "absent after browser runs; preserved in original CRX/ZIP", "originalSha256": "1e74cee5654a6fcb88c86f2f1c65bb90c339a4cbcde82da8962e348b46b66e78" } ] } ] }