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2026-04-27 - 11:08
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot5.osadl.org (updated Mon Apr 27, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2496189954935,513cyclictest0-21swapper/222:35:468
249662995402,536cyclictest0-21swapper/1322:25:465
249662995402,536cyclictest0-21swapper/1322:25:465
24962899530529,1cyclictest395185-21kworker/5:2+i915-unordered22:25:4611
24962899530529,1cyclictest395185-21kworker/5:2+i915-unordered22:25:4611
249621995170,516cyclictest0-21swapper/323:32:469
2496329951012,498cyclictest79-21ksoftirqd/622:39:4612
2496289951022,487cyclictest0-21swapper/519:29:4611
24964899485483,2cyclictest403956-21kworker/10:2+i915-unordered22:35:462
2496109948222,459cyclictest16-21ksoftirqd/019:52:460
24966699480480,0cyclictest419260-21kworker/14:1+i915-unordered22:39:466
2496109948022,457cyclictest0-21swapper/019:37:460
2496109948022,457cyclictest0-21swapper/019:37:460
2496109947617,458cyclictest0-21swapper/023:32:460
2496189947427,30cyclictest0-21swapper/221:41:468
2496109947023,28cyclictest0-21swapper/022:09:080
2496559946811,60cyclictest0-21swapper/1123:29:083
2496109946718,58cyclictest0-21swapper/000:25:310
2496249946621,29cyclictest61-21ksoftirqd/421:46:4610
2496109946521,30cyclictest0-21swapper/021:34:310
2496289946220,29cyclictest0-21swapper/522:32:4611
2496289946220,29cyclictest0-21swapper/522:32:4611
2496249946219,29cyclictest0-21swapper/420:30:4610
24962499460456,3cyclictest1818-21snmpd20:33:5810
2496559945818,439cyclictest1768-21containerd20:51:463
2496249945610,29cyclictest0-21swapper/419:57:0810
249655994550,60cyclictest0-21swapper/1123:46:323
249624994557,30cyclictest0-21swapper/421:26:3110
2496669945425,428cyclictest0-21swapper/1420:52:296
24963299454453,1cyclictest0-21swapper/622:51:5712
249610994547,29cyclictest0-21swapper/020:39:100
24963999452452,0cyclictest69750irq/159-i91522:39:4614
2496249945011,60cyclictest61-21ksoftirqd/419:17:4610
24963299449448,1cyclictest0-21swapper/620:05:5712
2496249944942,29cyclictest0-21swapper/419:22:4610
2496629944725,421cyclictest0-21swapper/1319:30:315
2496329944725,421cyclictest0-21swapper/623:48:2812
2496329944724,422cyclictest0-21swapper/600:38:0712
2496219944729,417cyclictest52-21ksoftirqd/320:36:469
24961899447445,1cyclictest377706-21kworker/u64:13+events_unbound21:52:468
2496379944625,420cyclictest0-21swapper/721:57:3113
2496329944625,420cyclictest0-21swapper/622:55:1012
2496329944624,421cyclictest0-21swapper/621:38:1012
249618994468,437cyclictest0-21swapper/221:05:468
2496669944524,420cyclictest0-21swapper/1422:12:106
2496669944510,30cyclictest0-21swapper/1421:22:466
2496379944524,420cyclictest0-21swapper/721:37:0813
2496329944526,419cyclictest0-21swapper/622:44:3212
24966299444443,1cyclictest0-21swapper/1322:51:575
2496629944423,420cyclictest0-21swapper/1322:43:085
2496379944423,420cyclictest0-21swapper/722:18:0813
2496629944324,418cyclictest0-21swapper/1322:57:295
2496629944321,421cyclictest0-21swapper/1321:20:085
2496329944321,421cyclictest249603-21cyclictest19:58:0712
2496329944220,421cyclictest0-21swapper/600:27:2812
2496609944118,420cyclictest0-21swapper/1222:41:084
2496559944114,30cyclictest0-21swapper/1120:21:463
2496379944120,420cyclictest0-21swapper/720:31:3013
2496379944118,420cyclictest0-21swapper/721:05:0913
2496289944121,28cyclictest0-21swapper/519:16:4611
249624994410,30cyclictest0-21swapper/419:31:4610
24961899441435,5cyclictest1818-21snmpd20:43:598
2496189944117,423cyclictest43-21ksoftirqd/219:12:468
24961099441440,1cyclictest0-21swapper/022:25:460
24961099441440,1cyclictest0-21swapper/022:25:460
249643994400,0cyclictest0-21swapper/921:49:0815
2496379944021,416cyclictest0-21swapper/719:49:0713
2496559943923,416cyclictest0-21swapper/1120:39:463
2496379943917,419cyclictest0-21swapper/721:18:0813
24963299439438,1cyclictest0-21swapper/622:24:4112
24963299439438,1cyclictest0-21swapper/622:24:4112
2496189943919,419cyclictest0-21swapper/220:26:098
2496559943823,0cyclictest0-21swapper/1120:47:463
2496249943823,414cyclictest0-21swapper/420:53:0810
2496249943818,29cyclictest0-21swapper/420:16:4610
2496609943714,420cyclictest0-21swapper/1221:04:314
2496559943726,411cyclictest0-21swapper/1123:35:463
24963999437436,1cyclictest69750irq/159-i91522:09:4614
2496189943714,422cyclictest0-21swapper/220:59:108
24961399437434,2cyclictest342656-21kworker/u64:0+events_unbound21:54:311
2496109943714,30cyclictest0-21swapper/000:23:280
24965599436436,0cyclictest0-21swapper/1119:47:463
24961099436434,2cyclictest0-21swapper/023:02:460
2496109943616,420cyclictest0-21swapper/020:01:080
2496609943513,420cyclictest0-21swapper/1222:16:304
2496489943521,413cyclictest0-21swapper/1021:30:462
2496249943514,420cyclictest0-21swapper/421:39:3110
2496249943513,421cyclictest0-21swapper/421:58:3210
24961399435434,1cyclictest0-21swapper/121:09:101
24961099435435,0cyclictest0-21swapper/019:29:460
24966299434430,3cyclictest1818-21snmpd00:33:575
24963799434432,1cyclictest282565-21kworker/7:0+i915-unordered20:59:4613
2496289943313,419cyclictest0-21swapper/520:05:0711
249670994324,427cyclictest0-21swapper/1522:45:467
2496289943211,420cyclictest0-21swapper/520:10:0911
2496249943212,419cyclictest0-21swapper/420:06:0810
2496249943212,417cyclictest0-21swapper/421:15:3010
2496189943212,418cyclictest0-21swapper/219:40:088
2496189943212,418cyclictest0-21swapper/219:40:088
2496189943210,421cyclictest0-21swapper/220:51:318
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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