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2026-06-16 - 04:37
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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 rackdslot4.osadl.org (updated Tue Jun 16, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32282202169,22sleep10-21swapper/119:06:171
138591202169,22phc2sys0-21swapper/319:05:423
12232201168,22sleep20-21swapper/219:05:052
32272200166,22sleep00-21swapper/019:06:160
16572590,4sleep0381799cyclictest21:15:010
10672550,5sleep0381799cyclictest23:20:250
56442530,2sleep25647-21processes22:25:232
305932530,2sleep00-21swapper/000:20:220
133342530,2sleep30-21swapper/323:45:233
214422520,1sleep30-21swapper/319:45:023
138491510,1ptp4l401ktimersoftd/320:29:163
138491510,1ptp4l401ktimersoftd/300:01:133
382099501,47cyclictest30622-21kworker/3:019:20:133
265252500,2sleep30-21swapper/323:10:003
3820994814,9cyclictest41-21ksoftirqd/320:10:293
138491480,1ptp4l401ktimersoftd/320:53:233
381899471,44cyclictest0-21swapper/119:11:131
381899450,1cyclictest0-21swapper/120:41:341
50798440,7rtkit-daemon0-21swapper/023:01:350
3820994413,4cyclictest41-21ksoftirqd/300:06:263
382099438,8cyclictest41-21ksoftirqd/320:00:003
381999430,41cyclictest0-21swapper/219:55:232
3820994231,9cyclictest41-21ksoftirqd/321:30:243
3820994213,3cyclictest41-21ksoftirqd/320:30:123
382099418,8cyclictest41-21ksoftirqd/320:25:003
3820994137,2cyclictest41-21ksoftirqd/321:10:003
3820994130,9cyclictest41-21ksoftirqd/323:00:223
3820994129,9cyclictest41-21ksoftirqd/322:15:213
3818994136,3cyclictest25-21ksoftirqd/119:50:001
3817994136,3cyclictest30033-21irqrtprio21:05:180
138491410,1ptp4l401ktimersoftd/322:50:223
138491410,1ptp4l401ktimersoftd/319:53:093
138491410,0ptp4l401ktimersoftd/321:20:513
3820994035,3cyclictest41-21ksoftirqd/323:00:013
138491400,0ptp4l401ktimersoftd/321:35:303
382099395,2cyclictest121rcu_preempt21:50:003
3820993928,9cyclictest41-21ksoftirqd/300:30:163
382099392,4cyclictest41-21ksoftirqd/322:00:013
381999390,38cyclictest0-21swapper/223:25:332
138491390,0ptp4l401ktimersoftd/319:16:453
382099386,7cyclictest41-21ksoftirqd/322:05:193
382099384,3cyclictest41-21ksoftirqd/300:25:213
3820993833,3cyclictest41-21ksoftirqd/323:40:003
3820993833,3cyclictest41-21ksoftirqd/319:45:013
382099383,2cyclictest121rcu_preempt23:30:223
3820993832,3cyclictest41-21ksoftirqd/320:05:183
3820993831,4cyclictest41-21ksoftirqd/319:36:353
3820993819,17cyclictest41-21ksoftirqd/320:45:153
3820993732,3cyclictest41-21ksoftirqd/323:19:233
3820993732,3cyclictest41-21ksoftirqd/322:30:123
3820993732,3cyclictest41-21ksoftirqd/322:20:183
3820993732,3cyclictest41-21ksoftirqd/322:00:203
3820993732,3cyclictest41-21ksoftirqd/319:35:003
3820993732,3cyclictest41-21ksoftirqd/319:10:233
3820993731,3cyclictest41-21ksoftirqd/320:35:143
3820993730,4cyclictest41-21ksoftirqd/300:15:233
3819993732,3cyclictest1202-21turbostat20:10:012
3817993731,4cyclictest9-21ksoftirqd/023:40:540
3817993731,4cyclictest9-21ksoftirqd/020:05:260
50798360,2rtkit-daemon0-21swapper/122:33:151
382099367,4cyclictest41-21ksoftirqd/321:40:253
382099365,4cyclictest41-21ksoftirqd/322:10:213
3820993632,2cyclictest41-21ksoftirqd/323:50:133
3820993632,2cyclictest41-21ksoftirqd/321:50:003
3820993631,3cyclictest41-21ksoftirqd/323:20:173
3820993631,3cyclictest41-21ksoftirqd/322:29:593
3820993628,5cyclictest41-21ksoftirqd/320:58:473
3819993630,4cyclictest33-21ksoftirqd/222:42:072
3819993630,4cyclictest33-21ksoftirqd/222:36:382
3819993630,4cyclictest33-21ksoftirqd/222:36:382
3819993630,4cyclictest33-21ksoftirqd/222:24:392
3819993630,4cyclictest33-21ksoftirqd/219:14:512
3819993630,4cyclictest33-21ksoftirqd/200:31:432
3819993629,4cyclictest33-21ksoftirqd/223:36:352
381899367,28cyclictest0-21swapper/119:57:421
3818993631,3cyclictest25-21ksoftirqd/121:00:091
3818993630,4cyclictest25-21ksoftirqd/122:46:241
3818993630,4cyclictest25-21ksoftirqd/121:27:131
3818993628,5cyclictest10069-21sed23:40:171
3817993632,2cyclictest9-21ksoftirqd/022:54:590
3817993631,3cyclictest9-21ksoftirqd/000:27:330
3817993631,3cyclictest9-21ksoftirqd/000:10:260
3817993631,3cyclictest16427-21wc19:35:130
3817993631,2cyclictest9-21ksoftirqd/020:15:010
3817993630,4cyclictest9-21ksoftirqd/022:23:450
3817993630,4cyclictest9-21ksoftirqd/021:50:030
381799360,2cyclictest121rcu_preempt22:18:110
382099354,8cyclictest41-21ksoftirqd/300:35:193
3820993532,2cyclictest41-21ksoftirqd/323:40:143
3820993531,3cyclictest41-21ksoftirqd/322:45:143
3820993530,3cyclictest41-21ksoftirqd/322:35:143
3820993530,3cyclictest41-21ksoftirqd/322:35:143
3820993530,3cyclictest41-21ksoftirqd/321:10:193
3820993530,3cyclictest41-21ksoftirqd/320:05:003
3820993530,3cyclictest41-21ksoftirqd/319:25:153
3820993530,3cyclictest41-21ksoftirqd/300:13:253
3820993529,4cyclictest41-21ksoftirqd/321:19:493
382099351,5cyclictest41-21ksoftirqd/321:25:193
3819993529,4cyclictest33-21ksoftirqd/223:12:412
3819993529,4cyclictest33-21ksoftirqd/220:46:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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