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2025-12-24 - 15:12
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rackdslot1.osadl.org (updated Wed Dec 24, 2025 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2906921370,7sleep3322299cyclictest08:05:003
322099622,24cyclictest0-21swapper/109:22:561
231082600,4sleep223111-21df_abs10:10:152
134491590,4ptp4l0-21swapper/207:40:172
322099585,11cyclictest0-21swapper/107:20:161
134491570,4ptp4l0-21swapper/307:38:583
134491570,4ptp4l0-21swapper/011:37:570
134491570,4ptp4l0-21swapper/011:34:070
134491570,3ptp4l0-21swapper/309:05:353
134491560,4ptp4l0-21swapper/110:47:301
134491560,4ptp4l0-21swapper/011:19:490
134491560,4ptp4l0-21swapper/007:14:390
134491560,3ptp4l0-21swapper/207:32:352
134491560,3ptp4l0-21swapper/010:06:250
134491560,3ptp4l0-21swapper/010:06:250
322099552,51cyclictest0-21swapper/109:10:191
322099550,12cyclictest17578-21chrt08:49:031
322099550,12cyclictest1317-21runrttasks12:26:091
322099550,11cyclictest24829-21taskset10:13:431
322099550,11cyclictest22234-21chrt08:59:461
322099550,11cyclictest12788-21chrt08:36:431
134491550,4ptp4l0-21swapper/310:06:193
134491550,4ptp4l0-21swapper/310:06:193
134491550,4ptp4l0-21swapper/009:57:060
134491550,3ptp4l0-21swapper/307:30:473
134491550,3ptp4l0-21swapper/011:21:390
322099540,12cyclictest8728-21taskset11:57:371
322099540,12cyclictest19468-21chrt07:43:241
322099540,11cyclictest6509-21taskset09:34:521
322099540,11cyclictest1732-21taskset11:42:491
322099540,11cyclictest15363-21taskset08:44:581
322099540,11cyclictest1317-21runrttasks09:07:351
134491540,5ptp4l321999cyclictest09:07:190
134491540,4ptp4l0-21swapper/308:31:253
134491540,4ptp4l0-21swapper/007:53:080
322099530,12cyclictest31622-21chrt10:27:111
322099530,12cyclictest17901-21chrt11:06:231
322099530,11cyclictest28745-21chrt08:01:331
322099530,11cyclictest26634-21chrt07:59:161
322099530,11cyclictest24742-21chrt09:04:311
322099530,11cyclictest17847-21taskset09:57:491
322099530,11cyclictest11047-21chrt10:54:511
134491530,4ptp4l0-21swapper/311:21:053
134491530,4ptp4l0-21swapper/307:51:543
134491530,4ptp4l0-21swapper/009:47:510
134491530,3ptp4l0-21swapper/312:35:253
134491530,3ptp4l0-21swapper/208:44:032
134491530,3ptp4l0-21swapper/111:20:151
134491530,3ptp4l0-21swapper/007:40:170
134491530,12ptp4l0-21swapper/009:15:250
322099525,10cyclictest0-21swapper/112:16:261
322099520,7cyclictest134491ptp4l10:35:281
322099520,13cyclictest24790-21chrt12:31:591
322099520,13cyclictest24790-21chrt12:31:591
322099520,12cyclictest8369-21taskset08:28:571
322099520,12cyclictest27310-21chrt12:39:541
322099520,12cyclictest20302-21chrt11:12:441
322099520,12cyclictest14700-21chrt07:34:091
322099520,11cyclictest6587-21seq11:54:401
322099520,11cyclictest20089-21taskset10:01:481
322099520,11cyclictest15538-21chrt11:00:331
134491520,4ptp4l0-21swapper/308:44:253
134491520,4ptp4l0-21swapper/207:27:302
134491520,4ptp4l0-21swapper/207:10:122
134491520,4ptp4l0-21swapper/009:35:590
134491520,4ptp4l0-21swapper/008:28:190
134491520,3ptp4l0-21swapper/311:26:103
322099510,12cyclictest8609-21chrt09:37:211
322099510,11cyclictest13349-21chrt10:59:571
322099510,11cyclictest1125-21taskset08:14:171
134491510,8ptp4l0-21swapper/008:52:080
134491510,4ptp4l0-21swapper/311:39:293
134491510,4ptp4l0-21swapper/307:22:193
134491510,4ptp4l0-21swapper/207:54:302
134491510,4ptp4l0-21swapper/012:05:230
134491510,4ptp4l0-21swapper/010:36:140
134491510,4ptp4l0-21swapper/007:16:530
134491510,3ptp4l0-21swapper/012:18:300
134491510,3ptp4l0-21swapper/010:01:050
322099500,11cyclictest29475-21chrt11:32:181
322099500,11cyclictest21568-21taskset07:45:521
322099500,11cyclictest15719-21chrt12:13:421
322099500,11cyclictest15719-21chrt12:13:421
322099500,10cyclictest31869-21seq11:38:311
134491500,4ptp4l0-21swapper/207:56:592
134491500,4ptp4l0-21swapper/010:58:360
134491500,4ptp4l0-21swapper/008:24:440
134491500,4ptp4l0-21swapper/008:02:090
134491500,4ptp4l0-21swapper/007:24:590
134491500,3ptp4l0-21swapper/008:17:330
134491500,3ptp4l0-21swapper/007:25:150
134491500,11ptp4l0-21swapper/008:41:400
134491500,11ptp4l0-21swapper/007:45:250
322099490,12cyclictest4277-21chrt11:49:271
322099490,12cyclictest4126-21taskset09:28:461
322099490,12cyclictest15429-21chrt09:51:131
322099490,11cyclictest3654-21chrt08:18:221
322099490,11cyclictest20421-21chrt12:24:491
322099490,11cyclictest10421-21chrt07:25:101
134491490,4ptp4l0-21swapper/311:49:493
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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