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2026-07-29 - 09:46
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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 Wed Jul 29, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2589821370,0sleep027258-21turbostat22:09:550
2110921210,1sleep421108-21sshd22:07:584
1043321170,4sleep13207399cyclictest21:14:101
2486121110,1sleep624862-21bash00:06:396
76602890,1sleep37656-21sshd21:12:203
105052880,0sleep10-21swapper/121:37:271
323222860,1sleep00-21swapper/021:25:160
103302850,0sleep00-21swapper/021:44:070
270172830,0sleep70-21swapper/723:16:397
154312830,0sleep215428-21bash00:12:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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