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2025-04-02 - 08:15
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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 rack3slot6.osadl.org (updated Wed Apr 02, 2025 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202329529,18sleep10-21swapper/119:09:091
98002920,6chrt9803-21wc22:55:010
2246997256,9cyclictest26-21ksoftirqd/121:50:161
96627133,23sleep00-21swapper/019:05:230
2242997014,51cyclictest0-21swapper/022:35:250
105662700,6sleep00-21swapper/021:10:150
102142690,5sleep126-21ksoftirqd/119:30:241
2246996836,26cyclictest26-21ksoftirqd/123:20:191
2246996736,24cyclictest26-21ksoftirqd/122:55:261
2246996735,26cyclictest26-21ksoftirqd/123:40:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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