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2026-01-02 - 19:38
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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 rack0slot7.osadl.org (updated Fri Jan 02, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1858229948313,28cyclictest3342814-21Isolated12:10:190
1858279946223,29cyclictest3342814-21Isolated12:10:1911
1858279945021,28cyclictest0-21swapper/521:42:5811
1858229944924,28cyclictest0-21swapper/019:13:140
1858279944714,27cyclictest0-21swapper/523:22:3411
185827994417,27cyclictest0-21swapper/522:52:5411
185827994395,27cyclictest0-21swapper/522:37:5411
1858319943816,27cyclictest49805-21TaskCon~ller15
185827994386,27cyclictest0-21swapper/519:20:3811
185827994382,28cyclictest0-21swapper/520:01:2211
185826994386,27cyclictest3092487-21Isolated12:10:1910
185827994373,28cyclictest0-21swapper/520:41:5711
185827994373,27cyclictest0-21swapper/520:51:4311
185836994366,429cyclictest0-21swapper/1423:07:296
185827994352,27cyclictest0-21swapper/521:11:5911
185827994351,27cyclictest0-21swapper/520:47:3511
185827994350,26cyclictest0-21swapper/523:13:2911
185836994310,430cyclictest0-21swapper/1400:03:216
185836994300,429cyclictest0-21swapper/1422:04:496
185836994300,429cyclictest0-21swapper/1422:04:496
185836994300,429cyclictest0-21swapper/1400:16:276
185836994300,24cyclictest0-21swapper/1423:24:216
185836994290,429cyclictest0-21swapper/1423:36:446
185836994290,428cyclictest0-21swapper/1423:58:296
185836994290,428cyclictest0-21swapper/1423:53:456
185836994290,428cyclictest0-21swapper/1421:43:246
185836994290,428cyclictest0-21swapper/1420:42:376
1858269942921,407cyclictest0-21swapper/423:25:2610
1858239942923,0cyclictest0-21swapper/121:30:591
185836994280,428cyclictest0-21swapper/1419:52:336
185836994280,427cyclictest0-21swapper/1422:56:216
185836994280,427cyclictest0-21swapper/1420:05:296
185836994280,23cyclictest0-21swapper/1420:48:586
1858279942821,405cyclictest0-21swapper/522:15:2411
185836994270,427cyclictest0-21swapper/1419:46:386
185836994270,426cyclictest0-21swapper/1422:30:496
185836994270,23cyclictest0-21swapper/1423:34:446
185836994270,23cyclictest0-21swapper/1423:29:466
1858249942722,404cyclictest0-21swapper/200:06:388
185836994260,426cyclictest0-21swapper/1422:42:376
185836994260,21cyclictest0-21swapper/1421:03:566
1858349942624,401cyclictest0-21swapper/1223:48:404
185836994250,424cyclictest0-21swapper/1421:28:226
185836994250,21cyclictest0-21swapper/1419:28:546
185836994250,20cyclictest0-21swapper/1400:28:576
1858269942519,405cyclictest0-21swapper/419:14:1610
185836994240,19cyclictest0-21swapper/1422:54:226
185836994230,422cyclictest0-21swapper/1420:58:406
1858359942322,400cyclictest0-21swapper/1321:24:365
18582899423422,1cyclictest3581236-21kworker/6:3+i915-unordered23:34:4412
185827994239,408cyclictest8763-21IPC11
1858269942321,402cyclictest0-21swapper/420:52:5910
1858269942318,405cyclictest0-21swapper/422:36:4910
1858239942323,399cyclictest0-21swapper/122:42:131
1858239942322,400cyclictest0-21swapper/121:16:591
1858359942216,402cyclictest0-21swapper/1321:49:435
1858269942221,401cyclictest0-21swapper/420:25:5910
18582499422421,1cyclictest0-21swapper/222:40:398
185836994210,22cyclictest0-21swapper/1421:31:596
1858269942115,406cyclictest0-21swapper/423:40:3310
1858279942017,402cyclictest0-21swapper/520:19:3011
1858269942013,407cyclictest0-21swapper/423:07:5310
1858269942011,408cyclictest965607-21Timer22:59:4510
185837994190,418cyclictest0-21swapper/1520:30:117
18582899419415,3cyclictest3581236-21kworker/6:3+pm22:54:1212
1858269941914,405cyclictest0-21swapper/420:20:5510
1858269941911,407cyclictest0-21swapper/420:12:2910
18583599418417,1cyclictest481151-21kworker/13:2+i915-unordered20:19:305
1858279941810,405cyclictest0-21swapper/523:42:5811
1858249941820,398cyclictest0-21swapper/220:33:588
18582999417415,1cyclictest438827-21kworker/7:1+pm20:30:1113
18582899416415,1cyclictest871ktimers/621:54:1212
1858249941613,403cyclictest0-21swapper/223:25:588
18582899415414,1cyclictest3581236-21kworker/6:3+i915-unordered00:03:2112
18582899415413,1cyclictest3581236-21kworker/6:3+i915-unordered00:05:2512
18583599414403,6cyclictest582670-21kworker/13:1+events21:05:225
18583099414411,2cyclictest316372-21kworker/u64:1+events_unbound21:54:1214
18582499414410,3cyclictest417239-21kworker/2:0+events20:19:538
185827994136,405cyclictest0-21swapper/521:58:4111
1858279941311,400cyclictest0-21swapper/519:54:3511
185826994139,401cyclictest0-21swapper/400:13:5810
18583599411409,1cyclictest707714-21kworker/13:0+i915-unordered21:11:245
185834994117,403cyclictest0-21swapper/1219:43:364
1858329941110,401cyclictest0-21swapper/1000:26:132
18582899410409,1cyclictest29250irq/128-xhci_hcd19:43:3712
18582899410407,2cyclictest3581236-21kworker/6:3+pm22:40:3812
185822994109,397cyclictest0-21swapper/023:43:150
18582899409408,1cyclictest3581236-21kworker/6:3+i915-unordered00:31:4212
185825994090,408cyclictest8763-21IPC9
185835994087,400cyclictest0-21swapper/1321:56:315
18583599408407,1cyclictest1204849-21kworker/13:2+i915-unordered23:13:285
18583399408405,3cyclictest3617494-21Renderer20:54:163
185827994080,407cyclictest0-21swapper/521:23:2211
18583599407405,1cyclictest604289-21kworker/13:0+i915-unordered20:47:355
18583399407405,2cyclictest541620-21kworker/11:1+events21:13:583
18583199407406,1cyclictest1473265-21kworker/9:2+i915-unordered00:18:5315
18582899407406,1cyclictest29250irq/128-xhci_hcd20:52:1612
18582499407404,2cyclictest1245430-21kworker/2:1+events23:32:358
185836994065,401cyclictest0-21swapper/1400:30:436
185836994064,401cyclictest0-21swapper/1421:50:276
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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