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2025-12-03 - 16:04
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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 rack0slot2.osadl.org (updated Wed Dec 03, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
756347995349,3cyclictest1297922-21fwupd17:29:137
75590525340,10sleep40-21swapper/415:21:154
756339995148,2cyclictest961034-21kworker/u16:4+flush-8:017:22:475
756347995044,5cyclictest589235-21systemd-journal20:07:467
756347994944,4cyclictest951863-21latency_hist16:57:487
756347994744,2cyclictest982293-21cat17:12:477
756335994745,2cyclictest840706-21kworker/u16:2+events_unbound16:11:584
74719124712,30sleep70-21swapper/715:18:057
756347994640,5cyclictest1053104-21latency_hist17:47:477
756339994644,2cyclictest911666-21kworker/u16:3+flush-8:016:38:145
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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