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2026-05-15 - 17:14
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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 rack3slot6.osadl.org (updated Fri May 15, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2511721330,6chrt25116-21sed12:20:371
1057621020,5chrt10579-21ls11:40:350
10694999166,12cyclictest14-21ksoftirqd/008:55:120
10694999065,13cyclictest14-21ksoftirqd/012:25:100
10694998860,16cyclictest14-21ksoftirqd/007:20:150
10694998763,12cyclictest14-21ksoftirqd/007:40:110
10694998757,19cyclictest0-21swapper/011:30:130
10694998654,19cyclictest14-21ksoftirqd/007:50:140
10694998454,17cyclictest0-21swapper/009:25:100
10694998354,20cyclictest14-21ksoftirqd/007:45:130
10694998254,17cyclictest14-21ksoftirqd/009:05:140
10694998252,19cyclictest14-21ksoftirqd/007:30:160
10694998153,18cyclictest14-21ksoftirqd/008:15:130
10694998150,17cyclictest0-21swapper/008:10:110
10694998150,17cyclictest0-21swapper/008:10:110
10694998052,18cyclictest14-21ksoftirqd/008:00:130
10694998049,19cyclictest14-21ksoftirqd/011:10:240
226462790,7sleep1251rcuc/107:40:271
10694997953,16cyclictest14-21ksoftirqd/009:20:130
10694997947,21cyclictest14-21ksoftirqd/007:25:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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