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2026-06-24 - 12:24
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot5.osadl.org (updated Wed Jun 24, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1564239956318,54cyclictest43-21ksoftirqd/222:09:588
1564149955413,44cyclictest0-21swapper/019:29:580
1564699953310,522cyclictest0-21swapper/1320:19:585
156448995318,521cyclictest0-21swapper/923:27:5815
15644899531531,0cyclictest0-21swapper/922:44:5815
1564609952936,28cyclictest0-21swapper/1120:32:583
1564609952537,487cyclictest124-21ksoftirqd/1100:04:583
1564609951528,42cyclictest0-21swapper/1100:33:583
1564749951021,488cyclictest0-21swapper/1420:30:586
1564609951019,27cyclictest0-21swapper/1123:55:583
1564489950415,488cyclictest0-21swapper/919:27:5815
1564609950037,462cyclictest0-21swapper/1121:34:583
1564149950052,30cyclictest0-21swapper/022:07:410
1564609949916,29cyclictest0-21swapper/1122:28:583
15641899485485,0cyclictest345386-21kworker/1:0+i915-unordered22:52:581
156465994811,45cyclictest0-21swapper/1200:33:584
156442994790,478cyclictest0-21swapper/719:15:5813
156442994790,478cyclictest0-21swapper/719:15:5813
15647499473471,2cyclictest0-21swapper/1422:28:586
1564609947324,29cyclictest0-21swapper/1121:26:203
156460994729,461cyclictest0-21swapper/1120:19:583
1564189947122,29cyclictest0-21swapper/122:39:191
1564189947121,30cyclictest0-21swapper/122:23:191
1564189946920,29cyclictest0-21swapper/100:11:211
156429994670,461cyclictest0-21swapper/420:32:5810
15646099465465,0cyclictest0-21swapper/1119:15:583
15646099465465,0cyclictest0-21swapper/1119:15:583
15642599465464,1cyclictest69750irq/159-i91523:15:589
1564239946316,29cyclictest0-21swapper/220:05:428
1564239946112,30cyclictest0-21swapper/221:32:208
1564239946112,29cyclictest0-21swapper/221:03:428
1564239946011,28cyclictest0-21swapper/200:34:438
15644299459453,5cyclictest1818-21snmpd21:30:3213
1564239945912,28cyclictest0-21swapper/219:36:438
1564259945514,29cyclictest0-21swapper/321:04:589
156423994558,29cyclictest0-21swapper/222:20:448
156423994557,30cyclictest0-21swapper/222:25:438
156460994546,30cyclictest0-21swapper/1120:47:423
15643399454454,0cyclictest0-21swapper/520:25:5811
1564149945410,29cyclictest0-21swapper/023:24:580
156460994536,28cyclictest0-21swapper/1100:08:213
1564259945310,442cyclictest0-21swapper/323:34:589
156414994539,29cyclictest0-21swapper/019:55:580
156414994529,29cyclictest0-21swapper/019:32:400
15646099450449,1cyclictest0-21swapper/1120:03:583
156460994502,443cyclictest418503-21kworker/11:2+i915-unordered00:25:583
15642599448447,1cyclictest69750irq/159-i91521:53:589
1564609944724,417cyclictest0-21swapper/1121:39:413
156433994476,29cyclictest0-21swapper/521:24:5811
15641899447444,3cyclictest367073-21kworker/1:2+i915-unordered23:27:581
1564609944623,420cyclictest0-21swapper/1122:16:203
1564609944611,1cyclictest251278-21kworker/11:0+i915-unordered20:58:583
156433994463,30cyclictest0-21swapper/520:05:5811
15642599446445,1cyclictest69750irq/159-i91521:49:589
156418994460,30cyclictest0-21swapper/119:43:581
1564609944523,420cyclictest0-21swapper/1123:30:213
1564609944523,419cyclictest0-21swapper/1123:24:433
1564609944522,420cyclictest0-21swapper/1122:54:433
1564379944523,421cyclictest0-21swapper/622:36:2112
156465994440,28cyclictest0-21swapper/1221:30:584
1564609944423,419cyclictest0-21swapper/1123:01:213
1564609944423,419cyclictest0-21swapper/1122:21:433
1564609944322,419cyclictest0-21swapper/1123:50:433
1564609944322,419cyclictest0-21swapper/1120:10:433
1564609944320,422cyclictest0-21swapper/1122:24:423
15644699443442,1cyclictest366799-21kworker/8:2+i915-unordered23:18:5814
156437994430,28cyclictest0-21swapper/623:54:5812
15642599443443,0cyclictest69750irq/159-i91522:53:589
15647499442441,1cyclictest0-21swapper/1419:30:206
1564749944221,420cyclictest0-21swapper/1423:51:426
1564699944221,420cyclictest0-21swapper/1322:34:425
1564489944221,420cyclictest0-21swapper/920:18:4315
156433994420,30cyclictest0-21swapper/523:55:5811
1564699944123,417cyclictest0-21swapper/1300:27:425
1564659944121,419cyclictest0-21swapper/1223:38:424
1564659944121,419cyclictest0-21swapper/1219:46:214
1564659944120,420cyclictest0-21swapper/1221:56:204
15643399441438,2cyclictest208026-21kworker/5:1+i915-unordered20:19:5811
1564189944125,415cyclictest0-21swapper/120:00:581
1564699944019,420cyclictest0-21swapper/1300:18:215
1564659944019,420cyclictest0-21swapper/1222:43:214
1564379944019,420cyclictest0-21swapper/622:57:4412
1564379944019,420cyclictest0-21swapper/621:01:4312
1564699943921,417cyclictest0-21swapper/1323:46:205
1564699943919,419cyclictest0-21swapper/1300:00:405
1564659943917,421cyclictest0-21swapper/1220:13:434
1564379943920,418cyclictest0-21swapper/619:42:4312
1564189943925,414cyclictest0-21swapper/123:38:581
1564699943820,417cyclictest0-21swapper/1323:17:435
1564659943822,416cyclictest0-21swapper/1220:57:584
1564659943817,420cyclictest0-21swapper/1223:50:214
15642599438437,1cyclictest69750irq/159-i91520:58:589
15642599438437,1cyclictest69750irq/159-i91500:25:589
1564699943719,417cyclictest0-21swapper/1300:11:435
1564659943718,418cyclictest0-21swapper/1221:36:454
1564659943715,421cyclictest0-21swapper/1223:07:414
1564189943722,414cyclictest0-21swapper/120:12:581
15647699436436,0cyclictest125862-21kworker/15:5+i915-unordered19:15:587
15647699436436,0cyclictest125862-21kworker/15:5+i915-unordered19:15:587
1564699943618,417cyclictest0-21swapper/1323:47:445
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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