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2026-04-19 - 21:54
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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 50 highest latencies:
System rack3slot6.osadl.org (updated Sun Apr 19, 2026 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4855991387,112cyclictest0-21swapper/010:30:150
48559912074,28cyclictest14-21ksoftirqd/007:20:120
4855991087,79cyclictest0-21swapper/012:35:150
48599910776,18cyclictest26-21ksoftirqd/107:35:141
48599910775,18cyclictest26-21ksoftirqd/108:15:111
48599910673,19cyclictest26-21ksoftirqd/111:20:131
4855991067,21cyclictest0-21swapper/007:55:110
48559910610,24cyclictest0-21swapper/010:55:240
48599910576,19cyclictest26-21ksoftirqd/111:10:121
48599910574,21cyclictest26-21ksoftirqd/109:00:151
4855991058,75cyclictest0-21swapper/008:20:120
48559910217,21cyclictest0-21swapper/007:15:140
48559910112,21cyclictest0-21swapper/012:20:140
48559910110,24cyclictest0-21swapper/011:00:110
48599910071,19cyclictest26-21ksoftirqd/109:45:151
48599910070,18cyclictest26-21ksoftirqd/107:30:111
4855991009,24cyclictest0-21swapper/008:50:220
48559910014,23cyclictest0-21swapper/008:35:140
485599999,23cyclictest0-21swapper/009:00:120
4859999867,21cyclictest26-21ksoftirqd/109:10:131
485599989,24cyclictest0-21swapper/011:35:130
485599987,22cyclictest0-21swapper/009:15:150
4855999810,25cyclictest0-21swapper/011:45:140
4859999772,17cyclictest26-21ksoftirqd/107:45:151
485599976,22cyclictest0-21swapper/010:25:130
485599967,22cyclictest0-21swapper/011:05:120
4855999546,27cyclictest0-21swapper/008:05:160
4855999512,21cyclictest0-21swapper/010:40:120
194382950,6chrt19442-21sed10:50:350
4855999411,61cyclictest0-21swapper/008:30:140
4859999362,20cyclictest26-21ksoftirqd/108:45:171
4859999360,20cyclictest26-21ksoftirqd/107:10:151
485599939,23cyclictest0-21swapper/012:00:140
485599937,24cyclictest0-21swapper/008:00:140
4855999313,20cyclictest0-21swapper/008:55:130
485599927,21cyclictest0-21swapper/007:50:130
4855999213,25cyclictest0-21swapper/010:00:080
485599919,26cyclictest0-21swapper/011:25:130
485599919,25cyclictest0-21swapper/009:40:110
485599919,21cyclictest0-21swapper/012:25:150
485599919,20cyclictest0-21swapper/011:30:160
485599917,25cyclictest0-21swapper/011:10:130
485599909,24cyclictest0-21swapper/009:20:130
485599909,23cyclictest0-21swapper/010:10:120
468329032,46sleep10-21swapper/107:09:411
485599898,22cyclictest0-21swapper/012:05:130
485599897,24cyclictest0-21swapper/011:20:140
4859998829,45cyclictest0-21swapper/112:00:161
4859998754,20cyclictest26-21ksoftirqd/110:20:151
485599879,24cyclictest0-21swapper/012:30:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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