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2026-05-01 - 18:20
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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 rackfslot7.osadl.org (updated Fri May 01, 2026 12:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3477252996748,1cyclictest601ktimers/409:16:114
3477252995756,1cyclictest601ktimers/409:21:414
3477252995636,19cyclictest1-21systemd11:35:114
3477252995633,19cyclictest0-21swapper/409:35:334
3477252995615,40cyclictest3540552-21hostname09:05:134
3477252995534,20cyclictest3597509-21latency_hist10:50:004
3477252995533,19cyclictest601ktimers/410:43:134
3477252995533,19cyclictest0-21swapper/412:12:294
3477252995519,36cyclictest0-21swapper/411:07:234
3477252995516,38cyclictest3644141-21cron12:19:554
3477250995515,39cyclictest0-21swapper/210:30:142
3477257995414,39cyclictest0-21swapper/711:10:147
3477252995419,35cyclictest0-21swapper/411:13:334
3477252995419,35cyclictest0-21swapper/410:18:054
3477252995419,15cyclictest0-21swapper/412:35:094
3477252995419,15cyclictest0-21swapper/411:23:214
3477252995419,15cyclictest0-21swapper/410:31:294
3477252995419,15cyclictest0-21swapper/410:02:244
3477252995419,15cyclictest0-21swapper/409:34:444
3477252995419,15cyclictest0-21swapper/407:41:174
3477252995415,20cyclictest3488492-21kworker/u32:4+events_unbound08:21:514
3477252995414,39cyclictest3585545-21ntpq10:25:184
3477252995414,39cyclictest0-21swapper/412:27:274
3477252995414,39cyclictest0-21swapper/411:41:474
3477252995414,39cyclictest0-21swapper/409:54:474
3477252995413,39cyclictest3504894-21kworker/u32:5+events_unbound08:05:024
347725299540,34cyclictest0-21swapper/408:42:574
347725299540,34cyclictest0-21swapper/408:42:574
3477250995431,19cyclictest0-21swapper/207:15:172
3477252995334,19cyclictest0-21swapper/407:13:054
3477252995333,19cyclictest0-21swapper/412:06:254
3477252995333,19cyclictest0-21swapper/408:36:254
3477252995333,19cyclictest0-21swapper/408:36:254
3477252995314,39cyclictest3578384-21kworker/u32:0+flush-8:011:45:314
3477252995314,39cyclictest3559756-21kworker/u32:2+events_unbound09:45:514
3477252995314,39cyclictest0-21swapper/411:55:474
3477252995314,39cyclictest0-21swapper/411:26:394
3477252995314,39cyclictest0-21swapper/410:37:344
3477252995314,39cyclictest0-21swapper/408:00:394
3477252995314,19cyclictest0-21swapper/412:30:494
3477252995314,19cyclictest0-21swapper/409:42:154
3477252995314,19cyclictest0-21swapper/409:11:214
3477252995314,19cyclictest0-21swapper/407:27:254
3477252995313,40cyclictest3620045-21kworker/u32:2+events_unbound11:51:514
3477252995313,39cyclictest0-21swapper/407:15:034
3477252995233,19cyclictest0-21swapper/412:04:094
3477252995233,19cyclictest0-21swapper/411:30:054
3477252995233,19cyclictest0-21swapper/409:27:534
3477252995233,19cyclictest0-21swapper/408:52:094
3477252995233,19cyclictest0-21swapper/408:52:094
3477252995233,19cyclictest0-21swapper/408:47:134
3477252995233,19cyclictest0-21swapper/408:30:054
3477252995233,19cyclictest0-21swapper/408:30:044
3477252995233,19cyclictest0-21swapper/408:29:014
3477252995233,19cyclictest0-21swapper/408:17:134
3477252995233,19cyclictest0-21swapper/408:11:294
3477252995233,19cyclictest0-21swapper/407:57:094
3477252995233,19cyclictest0-21swapper/407:54:414
3477252995233,19cyclictest0-21swapper/407:31:034
3477252995233,19cyclictest0-21swapper/407:22:534
3477252995232,19cyclictest0-21swapper/412:22:204
3477252995232,19cyclictest0-21swapper/411:16:334
3477252995214,19cyclictest0-21swapper/410:50:134
3477252995213,39cyclictest0-21swapper/409:57:354
3477252995213,39cyclictest0-21swapper/407:39:294
3477248995214,19cyclictest0-21swapper/011:20:150
3477256995113,19cyclictest0-21swapper/609:30:156
3477252995133,18cyclictest0-21swapper/410:57:454
3477252995132,19cyclictest0-21swapper/411:01:234
3477252995132,19cyclictest0-21swapper/410:10:494
3477252995132,19cyclictest0-21swapper/410:06:534
3477252995132,19cyclictest0-21swapper/408:55:094
3477252995132,19cyclictest0-21swapper/407:47:054
3477251995113,19cyclictest875-21mta-sts-daemon11:50:153
3477257995013,18cyclictest0-21swapper/711:45:167
3477257995012,19cyclictest0-21swapper/708:05:157
3477252995031,19cyclictest0-21swapper/409:01:134
3477250994810,19cyclictest0-21swapper/211:20:152
347724899489,39cyclictest0-21swapper/012:30:150
347725099479,19cyclictest0-21swapper/210:15:152
3477248994729,18cyclictest0-21swapper/011:35:130
347725299457,38cyclictest0-21swapper/410:21:334
347724899456,19cyclictest0-21swapper/007:30:160
347725799446,19cyclictest0-21swapper/707:55:147
347725099435,19cyclictest0-21swapper/207:50:152
347725799423,38cyclictest0-21swapper/708:20:167
347725799401,19cyclictest0-21swapper/707:40:147
347725799400,39cyclictest861rcuc/711:05:157
347725799400,39cyclictest0-21swapper/709:45:177
347724999400,39cyclictest0-21swapper/109:50:131
347725099391,19cyclictest0-21swapper/207:10:162
347724999390,38cyclictest0-21swapper/108:00:161
347725799380,18cyclictest0-21swapper/708:55:147
347725199380,19cyclictest0-21swapper/310:55:153
347725699370,18cyclictest876-21mta-sts-daemon07:25:166
347725599370,18cyclictest0-21swapper/511:17:335
347725099370,37cyclictest0-21swapper/208:45:162
347724999370,18cyclictest0-21swapper/111:00:161
347725699360,35cyclictest0-21swapper/610:05:156
347725699360,17cyclictest0-21swapper/610:10:156
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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