{ "buildId": "px-54c6825277ed", "commit": "54c117f48dadc19bbba931f7a39eadfc7be0502b", "generatedAt": "2026-09-06T13:40:55.510514+00:00", "status": "PASS", "targetMinimumFps": 30, "userDeviceStatus": "NOT_MEASURED", "interpretation": [ "Baseline was measured after P1 fix and before performance patch, not the older 26.7/27.9 FPS run.", "Before and after are explicitly identified different runtime builds. All current screenshots match the after build.", "Avoidable work was proven by executed call-count profiles: idle clones 3571 to 0; identical save writes 148 to 0; unchanged editor validation calls 518 to 0.", "FPS improved in these samples; shared VPS load and software rendering prevent attributing the entire difference to this patch. Before baseline already met 30 FPS.", "Precise coverage/wrappers add overhead; candidate counts are separate from unwrapped FPS measurements. No frame outliers discarded or target lowered." ], "before": { "fps": { "buildId": "px-0b97f0e16e18", "measuredAt": "2026-09-06T13:26:27.950Z", "command": "npm run test:e2e", "browser": "153.0.8010.12", "viewport": { "width": 1440, "height": 900 }, "hardware": { "cpu": "AMD EPYC Processor (with IBPB)", "logicalCpus": 12, "memoryBytes": 50514534400, "os": "linux 6.8.0-138-generic" }, "rendering": { "devices": [ { "vendorId": 65535, "deviceId": 65535, "vendorString": "Google Inc. (Google)", "deviceString": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver-5.0.0)", "driverVendor": "SwANGLE", "driverVersion": "5.0.0" } ], "featureStatus": { "2d_canvas": "unavailable_software", "direct_rendering_display_compositor": "disabled_off_ok", "gpu_compositing": "disabled_software", "multiple_raster_threads": "enabled_on", "opengl": "disabled_off", "rasterization": "disabled_software", "raw_draw": "disabled_off_ok", "skia_graphite": "disabled_off", "trees_in_viz": "disabled_off", "video_decode": "disabled_software", "video_encode": "disabled_software", "vulkan": "disabled_off", "webgl": "unavailable_software", "webgpu": "unavailable_software", "webgpu_on_vk_via_gl_interop": "disabled_off", "webnn": "unavailable_software" } }, "environment": "Chromium headless, shared Ubuntu VPS; software rendering as reported by SystemInfo. No frame outliers discarded. Four >=60s samples.", "userDeviceStatus": "NOT_MEASURED", "scenarios": [ { "scenario": "walking", "startedAt": "2026-09-06T13:22:14.584Z", "durationMs": 62550, "viewport": { "width": 1440, "height": 900 }, "cycles": 21, "samples": 2129, "meanFps": 34.18065172820498, "frameTimeP50Ms": 33.299999999995634, "frameTimeP95Ms": 50, "frameTimeP99Ms": 83.40000000000146, "maxFrameMs": 916.6000000000058, "over16_67Ms": 1760, "over33_34Ms": 586, "over50Ms": 84, "over100Ms": 13, "profileP95Ms": { "simulation": 0.5, "draw": 1.7000000476837158, "ui": 0.6000000238418579 }, "loadBefore": [ 2.7, 2.26, 2.02 ], "loadAfter": [ 3.43, 2.57, 2.14 ], "freeMemoryBytes": 44497485824, "status": "PASS" }, { "scenario": "interactions", "startedAt": "2026-09-06T13:23:18.081Z", "durationMs": 62142, "viewport": { "width": 1440, "height": 900 }, "cycles": 9, "samples": 2077, "meanFps": 33.605097231516005, "frameTimeP50Ms": 33.29999999999927, "frameTimeP95Ms": 50, "frameTimeP99Ms": 99.90000000000146, "maxFrameMs": 233.29999999999563, "over16_67Ms": 1758, "over33_34Ms": 592, "over50Ms": 99, "over100Ms": 11, "profileP95Ms": { "simulation": 1.7999999523162842, "draw": 1.7999999523162842, "ui": 0.5 }, "loadBefore": [ 3.43, 2.57, 2.14 ], "loadAfter": [ 3.41, 2.74, 2.23 ], "freeMemoryBytes": 44572008448, "status": "PASS" }, { "scenario": "editor", "startedAt": "2026-09-06T13:24:21.540Z", "durationMs": 61101, "viewport": { "width": 1440, "height": 900 }, "cycles": 24, "samples": 1838, "meanFps": 30.170765217933713, "frameTimeP50Ms": 33.29999999999927, "frameTimeP95Ms": 66.59999999999854, "frameTimeP99Ms": 133.29999999999563, "maxFrameMs": 316.6999999999971, "over16_67Ms": 1616, "over33_34Ms": 611, "over50Ms": 115, "over100Ms": 26, "profileP95Ms": { "simulation": 0.10000002384185791, "draw": 3.200000047683716, "ui": 1.600000023841858 }, "loadBefore": [ 3.41, 2.74, 2.23 ], "loadAfter": [ 3.36, 2.88, 2.31 ], "freeMemoryBytes": 44554178560, "status": "PASS" }, { "scenario": "two-rooms", "startedAt": "2026-09-06T13:25:23.972Z", "durationMs": 63951, "viewport": { "width": 1440, "height": 900 }, "cycles": 15, "samples": 2097, "meanFps": 32.891950647957316, "frameTimeP50Ms": 33.29999999999927, "frameTimeP95Ms": 50.099999999998545, "frameTimeP99Ms": 99.90000000000146, "maxFrameMs": 550, "over16_67Ms": 1780, "over33_34Ms": 634, "over50Ms": 107, "over100Ms": 16, "profileP95Ms": { "simulation": 0.8000000715255737, "draw": 1.6999999284744263, "ui": 0.5 }, "loadBefore": [ 3.36, 2.88, 2.31 ], "loadAfter": [ 3.74, 3.11, 2.43 ], "freeMemoryBytes": 44578127872, "status": "PASS" } ], "status": "PASS" }, "candidates": { "buildId": "px-0b97f0e16e18", "commit": "d3ae2a34dd790cb2493a26f510d91ec90e1c0dda", "label": "before", "measuredAt": "2026-09-06T13:20:45.314Z", "command": "node tools/perf-candidates.mjs before", "browser": "153.0.8010.12", "viewport": { "width": 1440, "height": 900 }, "hardware": { "cpu": "AMD EPYC Processor (with IBPB)", "logicalCpus": 12, "os": "linux 6.8.0-138-generic" }, "environment": "Headless Chromium on shared VPS. Fresh local static preview PID; fresh synthetic browser storage. Precise coverage and API wrappers add overhead; use these results for call counts, not FPS comparisons.", "userDeviceStatus": "NOT_MEASURED", "scenarios": [ { "scenario": "idle", "startedAt": "2026-09-06T13:18:43.401Z", "durationMs": 60036, "counters": { "stateCloneCalls": 3571, "stateCloneMs": 519.4999977350235, "storageWrites": 148, "identicalStorageWrites": 148, "storageWriteMs": 39.40000021457672 }, "functions": [ { "role": "reduce", "functionName": "w", "callCount": 3573 } ], "loadBefore": [ 2.27, 2.08, 1.91 ], "loadAfter": [ 2.34, 2.13, 1.94 ] }, { "scenario": "editor-idle", "startedAt": "2026-09-06T13:19:45.213Z", "durationMs": 60044, "counters": { "stateCloneCalls": 0, "stateCloneMs": 0, "storageWrites": 0, "identicalStorageWrites": 0, "storageWriteMs": 0 }, "functions": [ { "role": "validateLayout", "functionName": "ae", "callCount": 518 } ], "loadBefore": [ 2.34, 2.13, 1.94 ], "loadAfter": [ 2.64, 2.28, 2 ] } ] } }, "after": { "fps": { "buildId": "px-54c6825277ed", "measuredAt": "2026-09-06T13:37:39.447Z", "command": "npm run test:e2e", "browser": "153.0.8010.12", "viewport": { "width": 1440, "height": 900 }, "hardware": { "cpu": "AMD EPYC Processor (with IBPB)", "logicalCpus": 12, "memoryBytes": 50514534400, "os": "linux 6.8.0-138-generic" }, "rendering": { "devices": [ { "vendorId": 65535, "deviceId": 65535, "vendorString": "Google Inc. 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Four >=60s samples.", "userDeviceStatus": "NOT_MEASURED", "scenarios": [ { "scenario": "walking", "startedAt": "2026-09-06T13:33:29.654Z", "durationMs": 62032, "viewport": { "width": 1440, "height": 900 }, "cycles": 21, "samples": 2330, "meanFps": 37.76184109229447, "frameTimeP50Ms": 33.19999999999709, "frameTimeP95Ms": 49.899999999999636, "frameTimeP99Ms": 66.69999999999709, "maxFrameMs": 266.6999999999971, "over16_67Ms": 1916, "over33_34Ms": 464, "over50Ms": 42, "over100Ms": 7, "profileP95Ms": { "simulation": 0.20000004768371582, "draw": 1.100000023841858, "ui": 0.5 }, "loadBefore": [ 4.59, 3.92, 2.97 ], "loadAfter": [ 4.28, 3.91, 3.03 ], "freeMemoryBytes": 44533477376, "status": "PASS" }, { "scenario": "interactions", "startedAt": "2026-09-06T13:34:32.746Z", "durationMs": 61274, "viewport": { "width": 1440, "height": 900 }, "cycles": 9, "samples": 2120, "meanFps": 34.794482776703795, "frameTimeP50Ms": 33.299999999995634, "frameTimeP95Ms": 50, "frameTimeP99Ms": 100, "maxFrameMs": 450, "over16_67Ms": 1771, "over33_34Ms": 527, "over50Ms": 85, "over100Ms": 18, "profileP95Ms": { "simulation": 0.8999999761581421, "draw": 1.2000000476837158, "ui": 0.5 }, "loadBefore": [ 4.42, 3.95, 3.04 ], "loadAfter": [ 4.26, 3.99, 3.11 ], "freeMemoryBytes": 44535554048, "status": "PASS" }, { "scenario": "editor", "startedAt": "2026-09-06T13:35:35.168Z", "durationMs": 62175, "viewport": { "width": 1440, "height": 900 }, "cycles": 27, "samples": 2178, "meanFps": 35.1554555521033, "frameTimeP50Ms": 33.299999999995634, "frameTimeP95Ms": 50, "frameTimeP99Ms": 83.29999999999927, "maxFrameMs": 283.40000000000146, "over16_67Ms": 1790, "over33_34Ms": 588, "over50Ms": 73, "over100Ms": 9, "profileP95Ms": { "simulation": 0.10000002384185791, "draw": 2.5, "ui": 0.6000000238418579 }, "loadBefore": [ 4.26, 3.99, 3.11 ], "loadAfter": [ 4.5, 4.07, 3.2 ], "freeMemoryBytes": 44551757824, "status": "PASS" }, { "scenario": "two-rooms", "startedAt": "2026-09-06T13:36:38.663Z", "durationMs": 60748, "viewport": { "width": 1440, "height": 900 }, "cycles": 15, "samples": 2218, "meanFps": 36.677768113219834, "frameTimeP50Ms": 33.299999999995634, "frameTimeP95Ms": 50, "frameTimeP99Ms": 66.69999999999982, "maxFrameMs": 166.59999999999854, "over16_67Ms": 1808, "over33_34Ms": 545, "over50Ms": 49, "over100Ms": 7, "profileP95Ms": { "simulation": 0.2999999523162842, "draw": 1, "ui": 0.5 }, "loadBefore": [ 4.5, 4.07, 3.2 ], "loadAfter": [ 3.85, 3.96, 3.21 ], "freeMemoryBytes": 44525293568, "status": "PASS" } ], "status": "PASS" }, "candidates": { "buildId": "px-54c6825277ed", "commit": "54c117f48dadc19bbba931f7a39eadfc7be0502b", "label": "after", "measuredAt": "2026-09-06T13:40:33.071Z", "command": "node tools/perf-candidates.mjs after", "browser": "153.0.8010.12", "viewport": { "width": 1440, "height": 900 }, "hardware": { "cpu": "AMD EPYC Processor (with IBPB)", "logicalCpus": 12, "os": "linux 6.8.0-138-generic" }, "environment": "Headless Chromium on shared VPS. 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