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2026-06-12 - 18:24
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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 Fri Jun 12, 2026 12:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176622990,5sleep00-21swapper/010:15:270
2703399692,25cyclictest0-21swapper/208:32:212
2703399670,31cyclictest27149-21taskset10:38:332
2703399660,38cyclictest26970-21chrt08:17:362
2703399660,35cyclictest6602-21taskset12:14:202
134491660,4ptp4l21639-21ntp_states08:05:243
2703399643,36cyclictest0-21swapper/209:05:092
2703399641,61cyclictest0-21swapper/212:20:282
2703399641,61cyclictest0-21swapper/210:45:292
2703399640,30cyclictest20206-21taskset10:22:562
2703399631,25cyclictest31622-21taskset08:28:032
2703399630,27cyclictest3949-21taskset08:38:182
2703399630,27cyclictest22466-21chrt08:08:482
2703399630,22cyclictest1057-21sensors_temp10:50:252
27382620,5sleep02743-21irqrtprio10:55:200
2703399620,35cyclictest24829-21taskset08:14:342
2703399620,32cyclictest10705-21taskset08:51:162
2703399620,27cyclictest1911-21taskset12:04:262
2703399620,27cyclictest15406-21chrt09:02:252
2703399620,24cyclictest21945-21systemctl10:25:242
134491610,4ptp4l0-21swapper/008:10:160
2703399600,30cyclictest13182-21taskset10:06:272
2703399600,28cyclictest6108-21taskset08:41:142
2703399600,27cyclictest13655-21taskset11:20:042
2703399600,27cyclictest13277-21chrt11:18:282
2703399600,26cyclictest4189-21chrt12:07:512
134491600,6ptp4l0-21swapper/207:09:432
134491600,4ptp4l0-21swapper/309:50:173
134491600,4ptp4l0-21swapper/010:10:190
2703399596,51cyclictest0-21swapper/209:20:492
2703399593,21cyclictest0-21swapper/211:48:472
2703399590,29cyclictest8197-21taskset07:35:432
2703399580,28cyclictest31595-21chrt11:57:122
2703399580,27cyclictest10840-21chrt10:00:532
2703399580,26cyclictest24708-21chrt10:31:472
134491580,4ptp4l0-21swapper/111:50:271
134491580,4ptp4l0-21swapper/107:46:261
2703399572,27cyclictest13109-21taskset08:57:392
2703399570,34cyclictest29283-21taskset10:41:102
2703399570,27cyclictest26829-21taskset09:26:232
2703399570,26cyclictest6361-21taskset11:03:082
2703399570,25cyclictest31241-21taskset07:18:012
2703299570,16cyclictest15761-21date07:55:001
134491570,3ptp4l0-21swapper/010:40:180
273612560,5sleep10-21swapper/110:39:591
134491560,4ptp4l0-21swapper/011:32:390
134491560,4ptp4l0-21swapper/007:15:220
134491560,3ptp4l0-21swapper/110:55:191
134491560,3ptp4l0-21swapper/110:53:251
325202550,6sleep00-21swapper/008:30:170
2703399551,26cyclictest15447-21taskset07:52:222
2703399550,25cyclictest24847-21chrt11:44:072
134491550,4ptp4l0-21swapper/008:29:270
134491550,11ptp4l0-21swapper/310:45:543
2703399530,34cyclictest22420-21taskset09:19:022
2703299536,6cyclictest0-21swapper/112:20:241
134491530,4ptp4l0-21swapper/309:55:303
134491530,4ptp4l0-21swapper/309:14:243
134491530,4ptp4l0-21swapper/309:14:243
134491530,4ptp4l0-21swapper/008:16:030
2703299522,6cyclictest0-21swapper/110:10:011
2703299521,15cyclictest9932-21ntp_states07:40:251
2703399510,24cyclictest20236-21taskset11:34:072
134491510,4ptp4l0-21swapper/309:21:513
134491510,4ptp4l0-21swapper/009:49:040
134491510,3ptp4l0-21swapper/011:09:010
2703299496,6cyclictest0-21swapper/110:29:391
134491490,9ptp4l0-21swapper/008:00:240
134491490,4ptp4l0-21swapper/310:15:033
134491490,4ptp4l0-21swapper/007:24:280
134491490,12ptp4l0-21swapper/307:59:583
2703299484,6cyclictest23790-21cat08:10:231
2703299481,5cyclictest25-21ksoftirqd/112:30:221
134491480,5ptp4l0-21swapper/307:07:173
134491480,4ptp4l0-21swapper/309:29:373
134491480,4ptp4l0-21swapper/308:47:543
134491480,4ptp4l0-21swapper/011:04:220
134491480,3ptp4l0-21swapper/308:53:523
134491480,3ptp4l0-21swapper/307:44:233
134491480,3ptp4l0-21swapper/007:53:470
134491480,11ptp4l0-21swapper/011:14:010
134491470,4ptp4l0-21swapper/310:20:173
134491470,4ptp4l0-21swapper/310:09:563
134491470,4ptp4l0-21swapper/309:19:043
134491470,4ptp4l0-21swapper/309:03:193
134491470,4ptp4l0-21swapper/307:19:133
134491470,4ptp4l0-21swapper/007:43:070
134491470,3ptp4l0-21swapper/310:03:283
2703299466,6cyclictest0-21swapper/111:58:171
2703299461,6cyclictest21034-21basename11:35:171
134491460,4ptp4l0-21swapper/309:33:373
134491460,4ptp4l0-21swapper/108:29:201
134491460,4ptp4l0-21swapper/108:08:261
134491460,3ptp4l33-21ksoftirqd/212:19:122
134491460,3ptp4l0-21swapper/111:04:241
134491460,3ptp4l0-21swapper/008:35:500
2703299450,6cyclictest0-21swapper/107:20:191
134491450,3ptp4l0-21swapper/112:02:171
134491450,11ptp4l0-21swapper/310:35:123
2703299440,6cyclictest25-21ksoftirqd/110:03:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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