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2025-12-25 - 14:59
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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 Thu Dec 25, 2025 00:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146244799612,19cyclictest0-21swapper/622:25:146
1462445996042,0cyclictest0-21swapper/423:57:534
1462445996041,0cyclictest0-21swapper/420:36:094
1462445995941,0cyclictest0-21swapper/423:52:134
1462445995940,0cyclictest601ktimers/400:18:534
1462445995940,0cyclictest601ktimers/400:18:534
1462442995959,0cyclictest0-21swapper/100:35:151
1462445995840,0cyclictest0-21swapper/422:29:014
1462445995840,0cyclictest0-21swapper/419:16:414
1462442995839,19cyclictest0-21swapper/120:55:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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