{ "window": { "base": "/private/tmp/smartgrid-ipad-no-pd-adhoc-20260910-1751", "started_local": "2026-09-10T17:51:26.285036-07:00", "ended_local": "2026-09-10T17:54:23.863692-07:00", "observation_seconds": 177.578656, "start_boundary": "Launch request timestamp, includes startup; app playback beganabout17:51:33", "end_boundary": "Before any new device diagnostic collection", "no_analog_recording": true, "user_condition": "PD disconnected before app launch; iPad powering USB bus. User reports many glitches with no interaction.", "build": "Same installed JUCE8.0.15 diagnostic build, normalDSP/UI/autoplay/MIDIworker,48k/512 verified at launch" }, "callbacks": { "app_log": "/private/tmp/smartgrid-ipad-no-pd-adhoc-20260910-1751.app.log", "recording_metadata": "/private/tmp/smartgrid-ipad-no-pd-adhoc-20260910-1751.window.json", "callbacks": 15836, "sample_rates": [ 48000.0 ], "frame_sizes": [ 470.0, 512.0 ], "thermal_states": [ -1.0, 0.0 ], "low_power_states": [ 0.0 ], "muted_states": [ 0.0 ], "sequence_holes": 0, "logger_miss_lines_entire_log": [], "dsp_ms_p50_p99_max": [ 4.119, 4.986, 18.328 ], "gap_ms_p50_p99_max": [ 10.667, 10.675, 229.398 ], "measured_dsp_overruns": 1, "xrun_start_end": [ 0, 7 ], "callback_gaps_gt20ms": [ { "time": "2026-09-10T17:52:03.634919-07:00", "recording_seconds": 37.34988331794739, "callback": 2809, "gap_us": 220224.0, "dsp_us": 4917.0, "xr": 1 }, { "time": "2026-09-10T17:52:14.110839-07:00", "recording_seconds": 47.82580256462097, "callback": 3771, "gap_us": 225118.0, "dsp_us": 5030.0, "xr": 2 }, { "time": "2026-09-10T17:52:49.599574-07:00", "recording_seconds": 83.314537525177, "callback": 7078, "gap_us": 224290.0, "dsp_us": 3707.0, "xr": 3 }, { "time": "2026-09-10T17:53:07.139528-07:00", "recording_seconds": 100.85449194908142, "callback": 8703, "gap_us": 217135.0, "dsp_us": 4903.0, "xr": 4 }, { "time": "2026-09-10T17:53:11.463674-07:00", "recording_seconds": 105.17863821983337, "callback": 9089, "gap_us": 217482.0, "dsp_us": 5020.0, "xr": 5 }, { "time": "2026-09-10T17:53:33.111899-07:00", "recording_seconds": 126.8268632888794, "callback": 11098, "gap_us": 229398.0, "dsp_us": 3799.0, "xr": 6 }, { "time": "2026-09-10T17:53:40.287862-07:00", "recording_seconds": 134.00282549858093, "callback": 11751, "gap_us": 221291.0, "dsp_us": 4865.0, "xr": 7 } ], "xrun_increments": [ { "time": "2026-09-10T17:52:03.634919-07:00", "recording_seconds": 37.34988331794739, "callback": 2809, "gap_us": 220224.0, "dsp_us": 4917.0, "xr": 1 }, { "time": "2026-09-10T17:52:14.110839-07:00", "recording_seconds": 47.82580256462097, "callback": 3771, "gap_us": 225118.0, "dsp_us": 5030.0, "xr": 2 }, { "time": "2026-09-10T17:52:49.599574-07:00", "recording_seconds": 83.314537525177, "callback": 7078, "gap_us": 224290.0, "dsp_us": 3707.0, "xr": 3 }, { "time": "2026-09-10T17:53:07.139528-07:00", "recording_seconds": 100.85449194908142, "callback": 8703, "gap_us": 217135.0, "dsp_us": 4903.0, "xr": 4 }, { "time": "2026-09-10T17:53:11.463674-07:00", "recording_seconds": 105.17863821983337, "callback": 9089, "gap_us": 217482.0, "dsp_us": 5020.0, "xr": 5 }, { "time": "2026-09-10T17:53:33.111899-07:00", "recording_seconds": 126.8268632888794, "callback": 11098, "gap_us": 229398.0, "dsp_us": 3799.0, "xr": 6 }, { "time": "2026-09-10T17:53:40.287862-07:00", "recording_seconds": 134.00282549858093, "callback": 11751, "gap_us": 221291.0, "dsp_us": 4865.0, "xr": 7 } ], "clock_offset_fit_slope": 1.8149223188891314e-05, "clock_fit_max_residual_ms": 0.5331039428710938, "limit": "dsp_us measures the instrumented processing region; it excludes subsequent callback logging and outer JUCE/native work. xr is the native device counter." }, "thermal_intervals": [ { "state": -1, "start": "2026-09-10T17:51:33.473278-07:00", "end": "2026-09-10T17:51:33.513259-07:00", "callbacks": 4, "long_gaps": 0 }, { "state": 0, "start": "2026-09-10T17:51:33.513259-07:00", "end": "2026-09-10T17:54:23.863692-07:00", "callbacks": 15832, "long_gaps": 7 } ], "transaction_errors": 7, "driver_restart_records": 12, "callback_long_gaps": 7, "matched_usb_callback_restart_episodes": 7, "matches": [ { "usb": { "time": "2026-09-10T17:52:03.397655-07:00", "seconds": 37.112619, "process": "kernel", "message": "AppleUSBIORequest: AppleUSBIORequest::complete: device 4 (MAYA44 USB+@00140000) endpoint 0x82: status 0xe00002ed (transaction error)" }, "callback": { "time": "2026-09-10T17:52:03.634919-07:00", "recording_seconds": 37.34988331794739, "callback": 2809, "gap_us": 220224.0, "dsp_us": 4917.0, "xr": 1 }, "restart": { "time": "2026-09-10T17:52:03.430200-07:00", "seconds": 37.145164, "process": "audiomxd", "message": " HALS_PlugInDevice.cpp:2660 HALS_PlugInDevice::HandlePlugIn_RequestConfigChange: --- restarting IO" } }, { "usb": { "time": "2026-09-10T17:52:13.872640-07:00", "seconds": 47.587604, "process": "kernel", "message": "AppleUSBIORequest: AppleUSBIORequest::complete: device 4 (MAYA44 USB+@00140000) endpoint 0x82: status 0xe00002ed (transaction error)" }, "callback": { "time": "2026-09-10T17:52:14.110839-07:00", "recording_seconds": 47.82580256462097, "callback": 3771, "gap_us": 225118.0, "dsp_us": 5030.0, "xr": 2 }, "restart": { "time": "2026-09-10T17:52:13.907441-07:00", "seconds": 47.622405, "process": "audiomxd", "message": " HALS_PlugInDevice.cpp:2660 HALS_PlugInDevice::HandlePlugIn_RequestConfigChange: --- restarting IO" } }, { "usb": { "time": "2026-09-10T17:52:49.356489-07:00", "seconds": 83.071453, "process": "kernel", "message": "AppleUSBIORequest: AppleUSBIORequest::complete: device 4 (MAYA44 USB+@00140000) endpoint 0x82: status 0xe00002ed (transaction error)" }, "callback": { "time": "2026-09-10T17:52:49.599574-07:00", "recording_seconds": 83.314537525177, "callback": 7078, "gap_us": 224290.0, "dsp_us": 3707.0, "xr": 3 }, "restart": { "time": "2026-09-10T17:52:49.392204-07:00", "seconds": 83.107168, "process": "audiomxd", "message": " HALS_PlugInDevice.cpp:2660 HALS_PlugInDevice::HandlePlugIn_RequestConfigChange: --- restarting IO" } }, { "usb": { "time": "2026-09-10T17:53:06.900358-07:00", "seconds": 100.615322, "process": "kernel", "message": "AppleUSBIORequest: AppleUSBIORequest::complete: device 4 (MAYA44 USB+@00140000) endpoint 0x82: status 0xe00002ed (transaction error)" }, "callback": { "time": "2026-09-10T17:53:07.139528-07:00", "recording_seconds": 100.85449194908142, "callback": 8703, "gap_us": 217135.0, "dsp_us": 4903.0, "xr": 4 }, "restart": { "time": "2026-09-10T17:53:06.935184-07:00", "seconds": 100.650148, "process": "audiomxd", "message": " HALS_PlugInDevice.cpp:2660 HALS_PlugInDevice::HandlePlugIn_RequestConfigChange: --- restarting IO" } }, { "usb": { "time": "2026-09-10T17:53:11.224574-07:00", "seconds": 104.939538, "process": "kernel", "message": "AppleUSBIORequest: AppleUSBIORequest::complete: device 4 (MAYA44 USB+@00140000) endpoint 0x82: status 0xe00002ed (transaction error)" }, "callback": { "time": "2026-09-10T17:53:11.463674-07:00", "recording_seconds": 105.17863821983337, "callback": 9089, "gap_us": 217482.0, "dsp_us": 5020.0, "xr": 5 }, "restart": { "time": "2026-09-10T17:53:11.258269-07:00", "seconds": 104.973233, "process": "audiomxd", "message": " HALS_PlugInDevice.cpp:2660 HALS_PlugInDevice::HandlePlugIn_RequestConfigChange: --- restarting IO" } }, { "usb": { "time": "2026-09-10T17:53:32.868158-07:00", "seconds": 126.583122, "process": "kernel", "message": "AppleUSBIORequest: AppleUSBIORequest::complete: device 4 (MAYA44 USB+@00140000) endpoint 0x82: status 0xe00002ed (transaction error)" }, "callback": { "time": "2026-09-10T17:53:33.111899-07:00", "recording_seconds": 126.8268632888794, "callback": 11098, "gap_us": 229398.0, "dsp_us": 3799.0, "xr": 6 }, "restart": { "time": "2026-09-10T17:53:32.904993-07:00", "seconds": 126.619957, "process": "audiomxd", "message": " HALS_PlugInDevice.cpp:2660 HALS_PlugInDevice::HandlePlugIn_RequestConfigChange: --- restarting IO" } }, { "usb": { "time": "2026-09-10T17:53:40.044092-07:00", "seconds": 133.759056, "process": "kernel", "message": "AppleUSBIORequest: AppleUSBIORequest::complete: device 4 (MAYA44 USB+@00140000) endpoint 0x82: status 0xe00002ed (transaction error)" }, "callback": { "time": "2026-09-10T17:53:40.287862-07:00", "recording_seconds": 134.00282549858093, "callback": 11751, "gap_us": 221291.0, "dsp_us": 4865.0, "xr": 7 }, "restart": { "time": "2026-09-10T17:53:40.079277-07:00", "seconds": 133.794241, "process": "audiomxd", "message": " HALS_PlugInDevice.cpp:2660 HALS_PlugInDevice::HandlePlugIn_RequestConfigChange: --- restarting IO" } } ], "prior_processing": [ { "callback": 2809, "dsp_ms_immediately_before": 3.789, "prior100ms_max_dsp_ms": 4.933 }, { "callback": 3771, "dsp_ms_immediately_before": 3.662, "prior100ms_max_dsp_ms": 4.937 }, { "callback": 7078, "dsp_ms_immediately_before": 4.906, "prior100ms_max_dsp_ms": 4.968 }, { "callback": 8703, "dsp_ms_immediately_before": 3.673, "prior100ms_max_dsp_ms": 4.886 }, { "callback": 9089, "dsp_ms_immediately_before": 3.714, "prior100ms_max_dsp_ms": 4.967 }, { "callback": 11098, "dsp_ms_immediately_before": 4.869, "prior100ms_max_dsp_ms": 4.974 }, { "callback": 11751, "dsp_ms_immediately_before": 3.754, "prior100ms_max_dsp_ms": 4.884 } ], "processing_overruns": [ { "callback": 1, "time": "2026-09-10T17:51:33.473278-07:00", "dsp_ms": 18.328, "frames": 470 } ], "power_snapshots": [ { "time": "2026-09-10T17:51:28.088203-07:00", "seconds": 1.803167, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 10084 battery-voltage-mV 4261 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 534 battery-fully-charged 0 battery-temperature 3179 screen-brightness 600000 battery-raw-current-capacity 9675 battery-raw-maximum-capacity 9773 presentDOD 0" }, { "time": "2026-09-10T17:51:48.098223-07:00", "seconds": 21.813187, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 10067 battery-voltage-mV 4217 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 223 battery-fully-charged 0 battery-temperature 3200 screen-brightness 600000 battery-raw-current-capacity 9507 battery-raw-maximum-capacity 9604 presentDOD 0" }, { "time": "2026-09-10T17:52:08.092867-07:00", "seconds": 41.807831, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 10050 battery-voltage-mV 4216 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 190 battery-fully-charged 0 battery-temperature 3209 screen-brightness 600000 battery-raw-current-capacity 9437 battery-raw-maximum-capacity 9533 presentDOD 0" }, { "time": "2026-09-10T17:52:28.093435-07:00", "seconds": 61.808399, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 10033 battery-voltage-mV 4211 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 182 battery-fully-charged 0 battery-temperature 3219 screen-brightness 600000 battery-raw-current-capacity 9437 battery-raw-maximum-capacity 9533 presentDOD 0" }, { "time": "2026-09-10T17:52:48.095619-07:00", "seconds": 81.810583, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 10016 battery-voltage-mV 4200 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 179 battery-fully-charged 0 battery-temperature 3239 screen-brightness 600000 battery-raw-current-capacity 9437 battery-raw-maximum-capacity 9533 presentDOD 0" }, { "time": "2026-09-10T17:53:08.093748-07:00", "seconds": 101.808712, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 9998 battery-voltage-mV 4197 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 178 battery-fully-charged 0 battery-temperature 3259 screen-brightness 600000 battery-raw-current-capacity 9429 battery-raw-maximum-capacity 9533 presentDOD 0" }, { "time": "2026-09-10T17:53:28.095633-07:00", "seconds": 121.810597, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 9980 battery-voltage-mV 4193 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 178 battery-fully-charged 0 battery-temperature 3279 screen-brightness 600000 battery-raw-current-capacity 9411 battery-raw-maximum-capacity 9533 presentDOD 0" }, { "time": "2026-09-10T17:53:48.098192-07:00", "seconds": 141.813156, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 9963 battery-voltage-mV 4194 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 177 battery-fully-charged 0 battery-temperature 3300 screen-brightness 600000 battery-raw-current-capacity 9394 battery-raw-maximum-capacity 9533 presentDOD 0" }, { "time": "2026-09-10T17:54:08.095730-07:00", "seconds": 161.810694, "process": "symptomsd", "message": "Power: battery-percentage 100.00 battery-power-connected 0 battery-charging 0 battery-warn 0 battery-critical 0 battery-absolute-capacity-mAh 9945 battery-voltage-mV 4188 battery-current-capacity-% 100 battery-maximum-capacity-% 100 battery-design-capacity-mAh 9781 battery-time-remaining 175 battery-fully-charged 0 battery-temperature 3319 screen-brightness 600000 battery-raw-current-capacity 9376 battery-raw-maximum-capacity 9533 presentDOD 0" } ], "thermal_pressure_events": [], "zero_length_reports": [ { "time": "2026-09-10T17:52:00.549757-07:00", "seconds": 34.264721, "process": "usbaudiod", "message": " [0x9ce]:AUAInputTransferManager_completeBlock block starting at frame 244892 recieved 2 zero length transfers, zlpCount 2" } ], "drift_events": [ { "time": "2026-09-10T17:51:27.809798-07:00", "seconds": 1.524762, "process": "usbaudiod", "message": " [0x98b]:AUAAudioDevice_updateTimeStamp ioDriftNS 1204125 at sampleTime 6085800" }, { "time": "2026-09-10T17:52:00.669782-07:00", "seconds": 34.384746, "process": "usbaudiod", "message": " [0x98b]:AUAAudioDevice_updateTimeStamp ioDriftNS 2020791 at sampleTime 1308000" }, { "time": "2026-09-10T17:52:01.421733-07:00", "seconds": 35.136697, "process": "usbaudiod", "message": " [0x98b]:AUAAudioDevice_updateTimeStamp ioDriftNS 2020792 at sampleTime 1344000" }, { "time": "2026-09-10T17:52:01.669800-07:00", "seconds": 35.384764, "process": "usbaudiod", "message": " [0x98b]:AUAAudioDevice_updateTimeStamp ioDriftNS 2020834 at sampleTime 1356000" } ], "limitations": "No analog recording for this ad hoc run; correlate user-reported glitches only at session level. No-PD topology reported by user before launch; explicit power snapshots provide additional evidence when present. Analysis window ends before the diagnostic requests." }