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2026-04-17 - 09:07
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Fri Apr 17, 2026 01:02:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1894399209192,12cyclictest0-21swapper/1322:16:265
1894399209192,12cyclictest0-21swapper/1322:16:255
1894399209192,12cyclictest0-21swapper/1322:16:255
1895199204197,4cyclictest0-21swapper/2000:31:0813
1895199204197,4cyclictest0-21swapper/2000:31:0713
1896499200185,12cyclictest0-21swapper/3021:10:4124
1896499200185,12cyclictest0-21swapper/3021:10:4124
1893999199128,57cyclictest0-21swapper/923:27:4939
1893999199128,57cyclictest0-21swapper/923:27:4939
1893999199128,57cyclictest0-21swapper/923:27:4939
1894799198192,4cyclictest0-21swapper/1722:04:559
1894799198192,4cyclictest0-21swapper/1722:04:549
1897199194191,2cyclictest0-21swapper/3621:55:2130
1897199194191,2cyclictest0-21swapper/3621:55:2030
1897199194191,2cyclictest0-21swapper/3621:55:2030
1896499192179,11cyclictest0-21swapper/3021:54:0524
1896499192179,11cyclictest0-21swapper/3021:54:0424
1894799192185,5cyclictest0-21swapper/1721:34:449
1894799192185,5cyclictest0-21swapper/1721:34:449
1894799192177,10cyclictest0-21swapper/1721:26:219
1894799192177,10cyclictest0-21swapper/1721:26:219
1894799192177,10cyclictest0-21swapper/1721:26:219
1893599190144,12cyclictest0-21swapper/523:04:4935
1893599190144,12cyclictest0-21swapper/523:04:4935
1895499188176,10cyclictest0-21swapper/2323:45:5916
1895499188176,10cyclictest0-21swapper/2323:45:5816
1895499188176,10cyclictest0-21swapper/2323:45:5816
1893599188168,13cyclictest0-21swapper/500:20:2235
1893599188168,13cyclictest0-21swapper/500:20:2135
1893599188168,13cyclictest0-21swapper/500:20:2135
1897299184138,38cyclictest0-21swapper/3722:32:2031
1897299184138,38cyclictest0-21swapper/3722:32:1931
1894799184173,8cyclictest0-21swapper/1721:15:219
1894799184173,8cyclictest0-21swapper/1721:15:209
1894799183175,6cyclictest0-21swapper/1721:43:329
1894799183175,6cyclictest0-21swapper/1721:43:329
1892899183130,51cyclictest0-21swapper/022:41:310
1892899183130,51cyclictest0-21swapper/022:41:310
1892899183130,51cyclictest0-21swapper/022:41:300
1896499182137,29cyclictest0-21swapper/3023:29:4024
1896499182137,29cyclictest0-21swapper/3023:29:3924
1896499182137,29cyclictest0-21swapper/3023:29:3924
1894799182178,2cyclictest35252-21sshd21:22:339
1894799182178,2cyclictest35252-21sshd21:22:329
1894799182175,5cyclictest0-21swapper/1723:52:509
1894799182175,5cyclictest0-21swapper/1723:52:499
1894799182175,5cyclictest0-21swapper/1723:52:499
189409918273,91cyclictest0-21swapper/1023:25:112
189409918273,91cyclictest0-21swapper/1023:25:112
189409918273,91cyclictest0-21swapper/1023:25:112
1894799181169,9cyclictest0-21swapper/1721:11:089
1894799181169,9cyclictest0-21swapper/1721:11:079
1894099181111,65cyclictest3542-21CPU2
1894099181111,65cyclictest3542-21CPU2
1894099181111,65cyclictest3542-21CPU2
1893999179138,35cyclictest0-21swapper/921:43:4039
1893999179138,35cyclictest0-21swapper/921:43:4039
1895199178167,7cyclictest0-21swapper/2022:54:4413
1895199178167,7cyclictest0-21swapper/2022:54:4413
1895199178167,7cyclictest0-21swapper/2022:54:4313
1895199178142,14cyclictest171rcu_preempt19:37:1013
1895199178142,14cyclictest171rcu_preempt19:37:0913
1893999177135,33cyclictest0-21swapper/900:37:5139
1893999177135,33cyclictest0-21swapper/900:37:5039
1896699175166,7cyclictest0-21swapper/3223:26:4826
1896699175166,7cyclictest0-21swapper/3223:26:4826
1896699175166,7cyclictest0-21swapper/3223:26:4726
1895199175161,4cyclictest0-21swapper/2021:19:0413
1895199175161,4cyclictest0-21swapper/2021:19:0413
1893599175145,28cyclictest0-21swapper/521:13:1435
1893599175145,28cyclictest0-21swapper/521:13:1335
1896499174146,11cyclictest171rcu_preempt21:44:5824
1896499174146,11cyclictest171rcu_preempt21:44:5824
1894799174154,15cyclictest0-21swapper/1721:45:189
1894799174154,15cyclictest0-21swapper/1721:45:189
1894799174154,15cyclictest0-21swapper/1721:45:179
1894399174154,11cyclictest0-21swapper/1319:34:465
1894399174154,11cyclictest0-21swapper/1319:34:465
1893999174121,50cyclictest0-21swapper/921:34:4439
1893999174121,50cyclictest0-21swapper/921:34:4439
1892899174120,43cyclictest0-21swapper/021:33:160
1892899174120,43cyclictest0-21swapper/021:33:160
1895499173163,6cyclictest0-21swapper/2323:12:1616
1895499173163,6cyclictest0-21swapper/2323:12:1616
1895199173161,7cyclictest0-21swapper/2000:10:0613
1895199173161,7cyclictest0-21swapper/2000:10:0613
1894399173150,9cyclictest0-21swapper/1300:13:315
1894399173150,9cyclictest0-21swapper/1300:13:315
1893599172164,6cyclictest0-21swapper/500:17:0335
1893599172164,6cyclictest0-21swapper/500:17:0235
1896999171154,8cyclictest171rcu_preempt19:10:4129
1896999171154,8cyclictest171rcu_preempt19:10:4129
1896699171157,7cyclictest0-21swapper/3223:05:4626
1896699171157,7cyclictest0-21swapper/3223:05:4626
1894799171154,8cyclictest0-21swapper/1721:38:239
1894799171154,8cyclictest0-21swapper/1721:38:239
1894799171152,10cyclictest0-21swapper/1719:36:159
1894799171152,10cyclictest0-21swapper/1719:36:159
1893999171125,36cyclictest0-21swapper/922:42:3439
1893999171125,36cyclictest0-21swapper/922:42:3339
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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