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2026-07-02 - 01:10
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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 rack0slot0.osadl.org (updated Thu Jul 02, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1759721400,2sleep1332899cyclictest22:58:461
1077121360,0sleep30-21swapper/321:14:053
591821180,1sleep10-21swapper/100:03:231
2837521170,0sleep70-21swapper/723:24:577
1983521100,0sleep10-21swapper/100:17:561
1877621090,1sleep6671rcuc/621:50:226
231372860,0sleep60-21swapper/622:40:156
217312830,0sleep20-21swapper/221:40:162
140912820,1sleep7761rcuc/723:19:057
94162790,0sleep10-21swapper/121:34:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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