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2026-06-04 - 06:42
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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 Thu Jun 04, 2026 00:49:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913130,305ptp4l0-21swapper/119:05:421
47452228219,6sleep220-21swapper/2219:05:1515
940099192101,1cyclictest151rcu_preempt00:28:4312
9564991630,161cyclictest0-21swapper/2923:59:5122
94879915570,70cyclictest0-21swapper/1900:11:4111
94879914859,67cyclictest0-21swapper/1900:04:0811
9564991461,116cyclictest0-21swapper/2900:01:4122
95649914533,85cyclictest0-21swapper/2922:32:2522
95649914431,112cyclictest0-21swapper/2921:26:0922
9564991440,88cyclictest0-21swapper/2923:07:0922
94269914442,58cyclictest14926-21/usr/sbin/munin22:20:2330
9564991423,88cyclictest0-21swapper/2920:48:4422
95649914237,62cyclictest0-21swapper/2922:15:2022
9564991421,98cyclictest0-21swapper/2919:37:0722
9564991421,98cyclictest0-21swapper/2919:37:0722
94519914222,77cyclictest0-21swapper/1423:43:486
9390991400,88cyclictest0-21swapper/022:02:170
9473991390,87cyclictest0-21swapper/1721:32:539
9564991381,93cyclictest191-21ksoftirqd/2920:08:4022
9564991381,93cyclictest191-21ksoftirqd/2920:08:3922
94519913841,62cyclictest0-21swapper/1422:04:546
9564991371,83cyclictest0-21swapper/2919:20:3422
9564991371,83cyclictest0-21swapper/2919:20:3322
94519913748,55cyclictest0-21swapper/1400:11:036
94519913722,60cyclictest0-21swapper/1423:11:446
94519913531,74cyclictest0-21swapper/1421:52:386
94519913526,61cyclictest0-21swapper/1422:30:006
95649913435,91cyclictest0-21swapper/2922:14:3322
9564991342,77cyclictest0-21swapper/2922:46:5222
94879913420,69cyclictest0-21swapper/1922:16:4511
93909913429,68cyclictest0-21swapper/023:50:260
95649913335,97cyclictest0-21swapper/2920:22:2122
9564991332,81cyclictest0-21swapper/2920:02:1422
9564991332,81cyclictest0-21swapper/2920:02:1422
9526991330,81cyclictest0-21swapper/2419:20:1617
9526991330,81cyclictest0-21swapper/2419:20:1517
9518991330,86cyclictest0-21swapper/2321:30:2016
94519913342,61cyclictest0-21swapper/1422:59:256
94519913230,72cyclictest0-21swapper/1423:37:226
94519913230,72cyclictest0-21swapper/1400:33:186
94519913229,73cyclictest0-21swapper/1423:02:096
94519913227,61cyclictest0-21swapper/1422:50:206
94519913226,65cyclictest0-21swapper/1423:48:046
94519913226,65cyclictest0-21swapper/1420:20:096
94519913131,68cyclictest0-21swapper/1421:49:256
94519913130,75cyclictest0-21swapper/1422:47:086
94519913129,70cyclictest0-21swapper/1400:27:056
94519913129,57cyclictest0-21swapper/1421:16:166
94739913046,56cyclictest0-21swapper/1722:11:559
94519913030,75cyclictest0-21swapper/1400:16:556
94519913030,70cyclictest0-21swapper/1421:55:176
94519913029,70cyclictest0-21swapper/1422:08:406
94519913027,70cyclictest0-21swapper/1420:00:246
94519913027,70cyclictest0-21swapper/1420:00:236
94519913027,61cyclictest0-21swapper/1423:05:196
94519913026,59cyclictest0-21swapper/1422:20:246
93909913042,57cyclictest0-21swapper/021:46:210
93909913023,59cyclictest0-21swapper/000:26:410
94519912940,58cyclictest0-21swapper/1400:37:466
94519912932,75cyclictest0-21swapper/1423:25:376
93909912947,52cyclictest0-21swapper/021:16:300
93909912935,56cyclictest0-21swapper/023:01:590
95649912858,63cyclictest0-21swapper/2922:53:1622
9564991281,126cyclictest0-21swapper/2920:36:5822
9541991286,44cyclictest0-21swapper/2621:36:1519
94739912846,53cyclictest0-21swapper/1722:53:049
94739912842,60cyclictest0-21swapper/1721:46:169
94739912837,61cyclictest0-21swapper/1723:20:529
94739912828,58cyclictest0-21swapper/1721:15:159
94739912826,63cyclictest0-21swapper/1722:40:029
94739912824,59cyclictest0-21swapper/1723:55:239
94519912829,68cyclictest0-21swapper/1421:40:186
93909912848,51cyclictest0-21swapper/022:34:080
9564991272,77cyclictest0-21swapper/2923:14:0722
95649912718,80cyclictest0-21swapper/2923:39:1522
9541991276,25cyclictest0-21swapper/2621:21:4819
9541991276,120cyclictest0-21swapper/2621:10:0319
94739912747,54cyclictest0-21swapper/1721:39:189
94739912744,53cyclictest0-21swapper/1720:20:139
94739912730,64cyclictest0-21swapper/1719:17:429
94739912730,64cyclictest0-21swapper/1719:17:429
94739912729,63cyclictest0-21swapper/1700:14:519
94739912727,60cyclictest0-21swapper/1720:50:099
94739912724,64cyclictest0-21swapper/1723:17:409
94519912752,67cyclictest0-21swapper/1422:40:106
94519912731,73cyclictest0-21swapper/1423:53:576
94519912730,70cyclictest0-21swapper/1422:30:226
94519912725,59cyclictest0-21swapper/1421:36:356
93909912728,71cyclictest0-21swapper/022:51:300
93909912727,63cyclictest0-21swapper/000:21:210
93909912725,61cyclictest0-21swapper/021:26:000
93909912723,70cyclictest0-21swapper/021:40:570
9541991266,119cyclictest0-21swapper/2622:21:0819
9541991266,100cyclictest0-21swapper/2620:30:0019
94739912652,59cyclictest0-21swapper/1723:14:109
94739912643,65cyclictest0-21swapper/1722:04:589
94739912637,59cyclictest0-21swapper/1720:43:129
94519912632,76cyclictest0-21swapper/1421:34:596
94519912632,70cyclictest0-21swapper/1422:13:596
94519912631,72cyclictest0-21swapper/1400:23:206
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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