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2025-12-20 - 06:36
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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 rack0slot7.osadl.org (updated Sat Dec 20, 2025 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17635412136104,29sleep140-21swapper/1419:05:536
283663721170,0sleep102836626-21dd23:57:022
289217621090,0sleep12892150-21dd00:14:461
278170121080,0sleep60-21swapper/623:42:3312
278170121080,0sleep60-21swapper/623:42:3212
190032521010,0sleep00-21swapper/019:44:550
176395529378,12sleep00-21swapper/019:08:360
176409629088,1sleep40-21swapper/419:09:2910
176412628437,39sleep150-21swapper/1519:09:407
176351227977,1sleep50-21swapper/519:05:4411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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