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2026-03-28 - 15:19
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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 20 highest latencies:
System rackfslot7.osadl.org (updated Sat Mar 28, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1359446996359,3cyclictest88-21ksoftirqd/722:40:097
135944699613,39cyclictest861rcuc/700:00:177
135944699570,0cyclictest0-21swapper/719:10:217
1359443995637,19cyclictest1533399-21sensors00:20:214
1359443995617,39cyclictest870-21mta-sts-daemon19:50:584
1359443995537,18cyclictest601ktimers/421:21:024
1359443995519,36cyclictest0-21swapper/420:12:584
1359443995517,19cyclictest1485966-21ntp_states22:55:214
1359443995517,19cyclictest1466322-21ntpq22:20:204
1359443995515,39cyclictest1516377-21rt-features23:50:224
1359443995435,19cyclictest362-21jbd2/sda2-820:20:064
1359443995435,19cyclictest1499906-21ntpq23:20:194
1359443995419,35cyclictest0-21swapper/423:55:154
1359443995419,35cyclictest0-21swapper/422:09:144
1359443995419,35cyclictest0-21swapper/420:40:214
1359443995419,35cyclictest0-21swapper/420:18:104
1359443995419,35cyclictest0-21swapper/419:33:124
1359443995419,15cyclictest0-21swapper/423:44:564
1359443995419,15cyclictest0-21swapper/423:29:024
1359443995419,15cyclictest0-21swapper/423:19:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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