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2026-03-16 - 15:38
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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 rackcslot8.osadl.org (updated Mon Mar 16, 2026 12:48:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2292899314115,1cyclictest151rcu_preempt10:55:0231
2294499313140,1cyclictest151rcu_preempt10:19:153
3273912800,272ptp4l0-21swapper/107:06:011
229289915710,104cyclictest0-21swapper/911:40:1231
22912991460,86cyclictest0-21swapper/609:51:2328
22912991460,86cyclictest0-21swapper/609:51:2228
229599914350,57cyclictest0-21swapper/1310:26:455
2294499142140,1cyclictest151rcu_preempt12:25:233
22900991410,85cyclictest0-21swapper/408:00:0126
229599914043,57cyclictest0-21swapper/1309:22:065
229599914043,57cyclictest0-21swapper/1309:22:055
229599913954,61cyclictest0-21swapper/1307:57:405
22952991390,87cyclictest0-21swapper/1212:19:524
229599913849,55cyclictest0-21swapper/1308:02:285
229449913811,99cyclictest151rcu_preempt10:43:183
229349913844,83cyclictest0-21swapper/1011:24:252
230039913737,100cyclictest0-21swapper/1910:31:0511
22934991360,83cyclictest0-21swapper/1010:40:522
229289913611,89cyclictest0-21swapper/910:27:4931
22900991360,85cyclictest0-21swapper/412:12:4426
229599913545,63cyclictest0-21swapper/1310:17:095
229599913528,63cyclictest0-21swapper/1311:57:385
230039913431,81cyclictest0-21swapper/1911:00:1411
23003991340,84cyclictest0-21swapper/1910:47:4211
229529913448,85cyclictest0-21swapper/1207:15:144
22944991340,81cyclictest0-21swapper/1111:42:203
229009913458,44cyclictest0-21swapper/409:15:1926
229009913458,44cyclictest0-21swapper/409:15:1926
229599913247,52cyclictest0-21swapper/1311:03:395
229349913218,87cyclictest0-21swapper/1010:03:112
229349913217,65cyclictest0-21swapper/1010:31:002
229129913226,78cyclictest0-21swapper/609:13:2628
229129913226,78cyclictest0-21swapper/609:13:2628
230039913131,86cyclictest0-21swapper/1910:17:1211
229599913147,53cyclictest0-21swapper/1307:42:425
229599913143,56cyclictest0-21swapper/1309:56:185
229599913143,56cyclictest0-21swapper/1309:56:175
22934991315,77cyclictest0-21swapper/1011:45:162
22900991310,84cyclictest0-21swapper/407:35:2526
229599913027,60cyclictest0-21swapper/1309:46:095
229599913027,60cyclictest0-21swapper/1309:46:085
229599912927,58cyclictest0-21swapper/1310:40:395
229129912914,75cyclictest0-21swapper/611:50:2028
229349912847,57cyclictest0-21swapper/1009:08:462
229349912847,57cyclictest0-21swapper/1009:08:462
229599912727,59cyclictest0-21swapper/1311:30:225
229599912629,58cyclictest0-21swapper/1311:12:435
22952991260,81cyclictest0-21swapper/1212:01:094
229349912627,67cyclictest0-21swapper/1011:52:462
229599912527,59cyclictest0-21swapper/1311:15:235
229599912527,57cyclictest0-21swapper/1308:09:575
229349912551,59cyclictest0-21swapper/1012:25:222
229349912550,59cyclictest0-21swapper/1007:17:382
229349912542,58cyclictest0-21swapper/1009:21:312
229349912542,58cyclictest0-21swapper/1009:21:302
229349912527,63cyclictest0-21swapper/1007:30:222
229349912525,67cyclictest0-21swapper/1011:07:202
229349912525,62cyclictest0-21swapper/1010:46:292
230039912421,66cyclictest0-21swapper/1909:55:1911
230039912421,66cyclictest0-21swapper/1909:55:1911
229599912428,59cyclictest0-21swapper/1307:19:445
229599912427,57cyclictest0-21swapper/1307:30:245
229349912452,57cyclictest0-21swapper/1010:10:282
229349912447,61cyclictest0-21swapper/1010:51:502
229349912443,59cyclictest0-21swapper/1011:35:402
229349912440,66cyclictest0-21swapper/1011:44:592
229349912433,69cyclictest0-21swapper/1011:27:392
229349912428,61cyclictest0-21swapper/1009:27:232
229349912428,61cyclictest0-21swapper/1009:27:232
229289912410,104cyclictest0-21swapper/912:11:2631
229599912325,58cyclictest0-21swapper/1312:10:595
229599912323,58cyclictest0-21swapper/1312:08:515
229349912354,58cyclictest0-21swapper/1007:24:282
229349912346,60cyclictest0-21swapper/1011:34:042
229349912331,59cyclictest0-21swapper/1009:14:332
229349912331,59cyclictest0-21swapper/1009:14:322
229349912330,64cyclictest0-21swapper/1010:15:302
229349912326,63cyclictest0-21swapper/1012:05:232
229349912324,63cyclictest0-21swapper/1008:56:562
229349912324,63cyclictest0-21swapper/1008:56:562
22934991226,61cyclictest0-21swapper/1011:11:052
229349912227,65cyclictest0-21swapper/1010:22:322
229349912226,69cyclictest0-21swapper/1010:35:472
229349912226,65cyclictest0-21swapper/1012:15:452
229349912226,65cyclictest0-21swapper/1011:03:352
229349912226,65cyclictest0-21swapper/1008:40:142
229349912225,65cyclictest0-21swapper/1012:30:112
229129912246,54cyclictest0-21swapper/609:57:1428
229129912246,54cyclictest0-21swapper/609:57:1428
229129912223,64cyclictest0-21swapper/609:28:5628
229129912223,64cyclictest0-21swapper/609:28:5528
228879912273,48cyclictest0-21swapper/208:32:5812
22959991219,88cyclictest0-21swapper/1309:35:115
22959991219,88cyclictest0-21swapper/1309:35:115
229599912127,59cyclictest0-21swapper/1310:52:255
229599912126,56cyclictest0-21swapper/1309:30:385
229599912126,54cyclictest0-21swapper/1311:35:115
229599912124,60cyclictest0-21swapper/1309:27:575
229599912124,60cyclictest0-21swapper/1309:27:575
229349912145,62cyclictest0-21swapper/1009:15:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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