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2026-05-25 - 02:31
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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 Sun May 24, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
595021640,6sleep01701899cyclictest11:20:270
1702199792,35cyclictest0-21swapper/309:45:103
1702199782,33cyclictest0-21swapper/307:30:163
1702199762,32cyclictest0-21swapper/311:35:223
1702199752,29cyclictest0-21swapper/308:40:143
1702199742,34cyclictest0-21swapper/311:00:173
1702199732,35cyclictest0-21swapper/309:05:253
1702199722,32cyclictest0-21swapper/311:30:183
1702099717,62cyclictest0-21swapper/211:35:282
134491710,20ptp4l26315-21apt-get07:30:110
1702199702,34cyclictest0-21swapper/310:40:183
17020997012,56cyclictest0-21swapper/211:30:282
17021996933,4cyclictest41-21ksoftirqd/307:25:193
1702199692,34cyclictest0-21swapper/311:40:243
1702199692,33cyclictest0-21swapper/308:55:263
1702199692,33cyclictest0-21swapper/308:55:263
1702099697,23cyclictest8543-21taskset09:10:042
17021996832,3cyclictest41-21ksoftirqd/307:53:173
1702199682,33cyclictest0-21swapper/310:25:203
1702199682,32cyclictest0-21swapper/312:30:193
36362670,6sleep20-21swapper/211:15:282
36362670,6sleep20-21swapper/211:15:282
1702199672,31cyclictest0-21swapper/310:50:273
1702099671,27cyclictest2022-21taskset12:21:502
1702099670,26cyclictest2457-21awk07:45:252
1702099670,26cyclictest18826-21taskset07:11:392
1702099660,27cyclictest6281-21chrt10:11:052
134491660,4ptp4l0-21swapper/107:10:301
17021996527,11cyclictest41-21ksoftirqd/310:01:003
1702099650,27cyclictest22342-21chrt09:37:272
1702099643,22cyclictest0-21swapper/212:19:252
1702099641,27cyclictest8776-21taskset10:18:362
1702099640,27cyclictest4224-21chrt10:09:122
1702099640,27cyclictest30863-21chrt07:39:562
247412630,4sleep00-21swapper/007:25:170
17021996331,4cyclictest41-21ksoftirqd/310:35:003
1702099632,27cyclictest23562-21chrt07:23:122
1702099632,27cyclictest23562-21chrt07:23:122
1702099632,26cyclictest614-21chrt07:43:252
1702099630,27cyclictest9916-21chrt08:00:382
1702099630,27cyclictest29458-21chrt11:02:162
1702099630,27cyclictest1349-21taskset08:55:022
1702099630,27cyclictest1349-21taskset08:55:022
1702099630,26cyclictest22584-21taskset11:56:262
1702099630,26cyclictest15137-21taskset09:21:142
17021996230,11cyclictest41-21ksoftirqd/311:45:173
1702099622,21cyclictest0-21swapper/209:51:142
1702099621,22cyclictest134691getstats10:20:112
1702099620,29cyclictest2545-21taskset12:25:062
1702099620,27cyclictest27065-21chrt10:56:142
1702099620,26cyclictest6657-21taskset12:31:452
1702099620,26cyclictest31602-21chrt09:57:252
1702099620,26cyclictest26953-21taskset09:46:422
1702099620,24cyclictest27276-21taskset12:06:422
134491620,7ptp4l0-21swapper/107:05:251
134491620,16ptp4l0-21swapper/009:45:180
1702099612,21cyclictest0-21swapper/210:33:512
1702099611,24cyclictest8934-21taskset12:36:302
1702099610,28cyclictest18248-21taskset11:49:492
1702099610,26cyclictest22666-21chrt10:49:282
1702099610,26cyclictest13246-21taskset10:26:462
1702099610,25cyclictest19980-21taskset09:34:212
1702099610,25cyclictest17465-21chrt09:26:322
1702099610,25cyclictest15883-21taskset11:44:022
1702099610,24cyclictest1397-21taskset10:00:572
17021996029,3cyclictest41-21ksoftirqd/308:10:503
17021996028,4cyclictest41-21ksoftirqd/309:16:033
1702099602,21cyclictest0-21swapper/208:25:362
1702099600,28cyclictest5346-21taskset07:51:142
1702099600,28cyclictest28338-21chrt07:34:422
1702099600,27cyclictest8784-21chrt11:26:342
1702099600,27cyclictest8066-21chrt09:06:542
1702099600,27cyclictest31831-21chrt11:08:142
1702099600,26cyclictest6515-21taskset11:24:422
1702099600,26cyclictest5673-21chrt09:00:402
1702099600,26cyclictest23836-21taskset08:31:242
1702099600,25cyclictest21145-21taskset07:16:572
1702099600,25cyclictest21145-21taskset07:16:572
134491600,4ptp4l0-21swapper/107:35:021
17021995931,4cyclictest41-21ksoftirqd/309:40:133
17021995928,4cyclictest41-21ksoftirqd/312:13:593
17021995922,4cyclictest41-21ksoftirqd/307:45:023
1702099592,22cyclictest0-21swapper/210:38:522
1702099591,25cyclictest12224-21taskset08:05:462
1702099590,27cyclictest28822-21taskset08:43:302
1702099590,27cyclictest14728-21chrt08:13:302
1702099590,26cyclictest7871-21taskset07:59:132
134491590,4ptp4l0-21swapper/307:24:393
134491590,4ptp4l0-21swapper/307:24:393
1702199586,8cyclictest41-21ksoftirqd/311:05:253
17021995829,9cyclictest41-21ksoftirqd/309:05:003
17021995827,5cyclictest41-21ksoftirqd/308:31:323
17021995827,4cyclictest41-21ksoftirqd/311:54:133
17021995827,4cyclictest41-21ksoftirqd/309:57:073
17021995826,5cyclictest41-21ksoftirqd/310:55:373
17021995824,9cyclictest41-21ksoftirqd/312:20:273
1702099582,22cyclictest0-21swapper/207:28:392
1702099580,26cyclictest26387-21taskset08:36:562
1702099580,26cyclictest25046-21chrt10:54:502
1702099580,25cyclictest24956-21chrt12:01:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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