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2026-07-04 - 21:35
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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 04, 2026 12:49:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912660,258ptp4l0-21swapper/107:05:251
330891227218,6phc2sys0-21swapper/207:05:2212
97319922324,197cyclictest151rcu_preempt12:00:2018
96219920416,161cyclictest0-21swapper/911:34:2631
96219917821,31cyclictest0-21swapper/911:50:2831
96219917821,147cyclictest0-21swapper/911:21:0431
96219917721,101cyclictest0-21swapper/909:49:0731
96219917621,98cyclictest0-21swapper/912:23:0331
96219917621,122cyclictest0-21swapper/912:08:0531
82682169163,5sleep280-21swapper/2807:07:4921
96139916812,149cyclictest151rcu_preempt09:44:0830
83682167160,6sleep260-21swapper/2607:09:2419
96219916321,88cyclictest0-21swapper/911:49:0931
96219915921,77cyclictest0-21swapper/912:04:2231
96219915621,95cyclictest0-21swapper/912:14:3031
95879915051,93cyclictest0-21swapper/411:30:2426
96019914910,115cyclictest151rcu_preempt12:36:0628
95879914856,44cyclictest0-21swapper/410:05:2426
96749914353,59cyclictest0-21swapper/1709:16:409
96139914353,54cyclictest0-21swapper/807:50:2430
9587991430,86cyclictest0-21swapper/408:40:2426
9570991430,84cyclictest0-21swapper/210:14:2212
96749914251,67cyclictest0-21swapper/1711:39:539
9674991420,89cyclictest0-21swapper/1707:12:589
9674991420,84cyclictest0-21swapper/1712:08:139
96749914151,57cyclictest0-21swapper/1712:33:219
9674991410,84cyclictest0-21swapper/1709:25:459
96219914121,77cyclictest0-21swapper/909:52:2131
96749914054,59cyclictest0-21swapper/1709:20:249
9587991400,85cyclictest0-21swapper/412:07:0126
96749913930,67cyclictest0-21swapper/1711:59:079
9674991390,85cyclictest0-21swapper/1710:41:389
9674991390,85cyclictest0-21swapper/1710:41:389
9674991390,82cyclictest0-21swapper/1711:45:469
97579913821,115cyclictest191-21ksoftirqd/2912:24:3122
96749913830,66cyclictest0-21swapper/1709:40:429
9674991380,85cyclictest0-21swapper/1708:28:339
9674991380,84cyclictest0-21swapper/1709:59:259
9674991380,83cyclictest0-21swapper/1712:36:509
9674991380,82cyclictest0-21swapper/1708:50:129
96139913829,93cyclictest0-21swapper/812:10:2030
96139913820,83cyclictest0-21swapper/810:38:3730
96139913820,83cyclictest0-21swapper/810:38:3630
96749913749,60cyclictest0-21swapper/1710:50:119
96749913749,60cyclictest0-21swapper/1710:50:119
96749913749,55cyclictest0-21swapper/1710:39:319
96749913749,55cyclictest0-21swapper/1710:39:309
96749913731,68cyclictest0-21swapper/1708:17:529
9674991370,82cyclictest0-21swapper/1708:42:289
96749913656,62cyclictest0-21swapper/1710:27:459
96749913656,62cyclictest0-21swapper/1710:27:459
96749913641,61cyclictest0-21swapper/1711:00:219
96749913632,71cyclictest0-21swapper/1710:48:049
96749913629,70cyclictest0-21swapper/1711:28:409
96749913624,74cyclictest0-21swapper/1707:21:469
9674991360,78cyclictest0-21swapper/1711:51:399
9601991360,131cyclictest0-21swapper/610:22:4528
9601991360,131cyclictest0-21swapper/610:22:4528
96749913535,68cyclictest0-21swapper/1708:13:059
96749913528,69cyclictest0-21swapper/1709:14:329
9674991350,83cyclictest0-21swapper/1710:04:149
9674991350,79cyclictest0-21swapper/1710:20:169
9674991350,79cyclictest0-21swapper/1710:20:159
9674991350,78cyclictest0-21swapper/1711:16:549
96139913527,83cyclictest0-21swapper/808:25:1330
96749913428,66cyclictest0-21swapper/1710:59:179
96749913428,66cyclictest0-21swapper/1710:59:179
96749913428,65cyclictest0-21swapper/1710:11:119
96749913424,74cyclictest0-21swapper/1707:30:529
9660991341,78cyclictest0-21swapper/1508:10:217
96219913421,73cyclictest0-21swapper/910:37:4631
96219913421,73cyclictest0-21swapper/910:37:4631
96749913344,66cyclictest0-21swapper/1712:17:519
96749913339,67cyclictest0-21swapper/1708:30:139
96749913330,63cyclictest0-21swapper/1712:03:259
96749913329,63cyclictest0-21swapper/1712:22:399
96749913328,69cyclictest0-21swapper/1711:10:309
9674991330,78cyclictest0-21swapper/1707:27:089
96609913329,74cyclictest0-21swapper/1507:30:177
96139913348,56cyclictest0-21swapper/810:55:4530
96139913348,56cyclictest0-21swapper/810:55:4430
96139913330,73cyclictest0-21swapper/809:31:3630
96899913230,54cyclictest0-21swapper/1911:30:1911
96749913260,69cyclictest0-21swapper/1710:19:439
96749913260,69cyclictest0-21swapper/1710:19:429
96749913231,68cyclictest0-21swapper/1709:54:369
9674991322,79cyclictest0-21swapper/1708:38:109
9674991320,78cyclictest0-21swapper/1707:19:079
96609913232,51cyclictest0-21swapper/1512:30:067
9660991321,94cyclictest0-21swapper/1511:56:267
96139913242,60cyclictest0-21swapper/808:05:2530
95879913230,99cyclictest0-21swapper/411:35:1326
96899913120,110cyclictest0-21swapper/1909:07:3611
9674991310,79cyclictest0-21swapper/1711:42:039
96139913150,52cyclictest0-21swapper/809:25:5430
96139913128,68cyclictest0-21swapper/812:29:4830
96139913126,59cyclictest0-21swapper/808:30:2230
9601991312,113cyclictest0-21swapper/612:14:0628
95879913114,113cyclictest151rcu_preempt12:30:1726
97579913028,101cyclictest0-21swapper/2911:06:2622
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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