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2026-07-25 - 19:25
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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 Sat Jul 25, 2026 12:49:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
506599325137,1cyclictest151rcu_preempt11:38:2612
3273913000,292ptp4l0-21swapper/107:05:441
50789926970,198cyclictest151rcu_preempt10:28:2727
51149918030,29cyclictest0-21swapper/1410:05:056
51589917133,137cyclictest0-21swapper/2408:20:2817
51589917133,137cyclictest0-21swapper/2408:20:2817
51149916730,81cyclictest0-21swapper/1411:22:036
51589916631,106cyclictest0-21swapper/2409:30:2117
51149916430,81cyclictest0-21swapper/1411:06:026
51709915738,114cyclictest0-21swapper/2711:05:1120
51149915624,91cyclictest0-21swapper/1410:18:276
50699915338,81cyclictest0-21swapper/309:55:1723
50699914939,75cyclictest0-21swapper/310:50:2023
51709914827,33cyclictest0-21swapper/2709:25:1320
5124991480,82cyclictest0-21swapper/1610:50:228
51709914731,71cyclictest0-21swapper/2711:15:2020
5114991470,85cyclictest0-21swapper/1407:25:186
5114991460,84cyclictest0-21swapper/1408:36:236
5114991460,84cyclictest0-21swapper/1408:36:226
330891146138,6phc2sys0-21swapper/207:05:2112
51709914527,72cyclictest0-21swapper/2712:00:1320
505999145144,1cyclictest151rcu_preempt11:36:171
51709914328,72cyclictest0-21swapper/2710:27:3420
5097991431,83cyclictest0-21swapper/1007:31:392
51709914225,77cyclictest0-21swapper/2711:32:2420
5109991421,87cyclictest0-21swapper/1309:31:565
5124991400,85cyclictest0-21swapper/1610:28:098
5097991400,84cyclictest0-21swapper/1011:24:082
50599913858,80cyclictest0-21swapper/110:23:351
51249913631,97cyclictest0-21swapper/1612:10:008
51249913529,99cyclictest0-21swapper/1609:16:298
51149913523,111cyclictest0-21swapper/1409:10:036
51149913523,111cyclictest0-21swapper/1409:10:026
5114991340,85cyclictest0-21swapper/1412:17:396
5097991340,88cyclictest0-21swapper/1012:30:242
50599913351,77cyclictest0-21swapper/109:19:261
50599913349,14cyclictest0-21swapper/112:35:371
5109991320,70cyclictest0-21swapper/1310:40:225
5065991320,74cyclictest0-21swapper/208:50:0312
5065991320,74cyclictest0-21swapper/208:50:0312
517099131130,0cyclictest179-21ksoftirqd/2712:26:2520
51249913127,62cyclictest0-21swapper/1611:41:088
50659913157,43cyclictest0-21swapper/207:35:1512
51589913012,14cyclictest0-21swapper/2411:20:1217
51249913013,100cyclictest0-21swapper/1608:19:388
51249913013,100cyclictest0-21swapper/1608:19:378
51099913011,74cyclictest0-21swapper/1311:00:275
50859913026,63cyclictest0-21swapper/709:50:0029
5069991301,105cyclictest0-21swapper/309:49:2423
5059991301,74cyclictest0-21swapper/111:10:381
51589912912,71cyclictest151rcu_preempt12:30:4317
51149912949,60cyclictest0-21swapper/1412:38:286
51149912947,51cyclictest0-21swapper/1409:07:226
51149912947,51cyclictest0-21swapper/1409:07:226
50859912927,66cyclictest0-21swapper/708:00:1329
50859912927,66cyclictest0-21swapper/708:00:1229
50859912927,63cyclictest0-21swapper/709:26:3029
50859912926,68cyclictest0-21swapper/709:40:5229
50699912925,57cyclictest0-21swapper/311:18:4123
51589912824,63cyclictest0-21swapper/2411:25:5717
51249912837,59cyclictest0-21swapper/1609:29:378
51149912828,99cyclictest0-21swapper/1409:53:526
51149912828,67cyclictest0-21swapper/1409:58:416
51149912827,65cyclictest0-21swapper/1411:11:536
51149912826,64cyclictest0-21swapper/1408:16:046
51149912826,64cyclictest0-21swapper/1408:16:046
51149912825,65cyclictest0-21swapper/1410:46:476
50979912877,44cyclictest0-21swapper/1012:02:382
50859912838,58cyclictest0-21swapper/712:28:1229
50859912829,70cyclictest0-21swapper/712:34:0629
50859912827,67cyclictest0-21swapper/710:59:2929
50599912847,80cyclictest0-21swapper/109:05:021
50599912847,80cyclictest0-21swapper/109:05:021
51589912720,64cyclictest0-21swapper/2411:12:5717
51249912715,87cyclictest0-21swapper/1609:38:488
51149912726,65cyclictest0-21swapper/1411:17:186
51099912717,71cyclictest0-21swapper/1307:28:465
509799127120,3cyclictest0-21swapper/1009:54:212
50859912728,69cyclictest0-21swapper/708:14:5329
50859912728,69cyclictest0-21swapper/708:14:5329
50859912728,68cyclictest0-21swapper/711:55:3729
50859912728,64cyclictest0-21swapper/707:37:2929
50859912727,68cyclictest0-21swapper/710:46:0829
50859912727,67cyclictest0-21swapper/709:37:2129
50859912720,71cyclictest0-21swapper/711:03:4629
50599912744,82cyclictest0-21swapper/111:40:331
51589912645,56cyclictest0-21swapper/2409:47:2517
51149912645,59cyclictest0-21swapper/1412:03:126
51149912627,66cyclictest0-21swapper/1410:31:006
51149912626,65cyclictest0-21swapper/1407:10:226
50979912622,103cyclictest0-21swapper/1009:31:532
50859912629,68cyclictest0-21swapper/707:20:2329
50859912628,72cyclictest0-21swapper/709:30:1429
50859912628,70cyclictest0-21swapper/712:21:4829
50859912627,68cyclictest0-21swapper/711:20:5329
50859912627,68cyclictest0-21swapper/710:10:1929
50859912627,65cyclictest0-21swapper/710:25:1729
50859912627,64cyclictest0-21swapper/710:20:0629
50859912626,68cyclictest0-21swapper/709:00:2729
50859912626,68cyclictest0-21swapper/709:00:2729
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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