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2026-07-20 - 09:17
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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 10 highest latencies:
System rackfslot7.osadl.org (updated Mon Jul 20, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2514743991650,163cyclictest0-21swapper/223:20:132
2514745999189,1cyclictest2675308-21date00:00:024
2514745997718,39cyclictest2600364-21sed21:45:024
2514745997556,19cyclictest0-21swapper/421:05:164
2514745997315,39cyclictest2584399-21ls21:15:144
2514745997315,39cyclictest236199-21snmpd23:31:084
2514745997130,40cyclictest1086-21runrttasks21:22:364
2514745997113,38cyclictest0-21swapper/421:10:444
2514745996930,39cyclictest0-21swapper/423:04:394
2514745996929,39cyclictest0-21swapper/423:12:224
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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