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2026-07-22 - 20:46
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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 rackfslot7.osadl.org (updated Wed Jul 22, 2026 12:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3222426997051,19cyclictest0-21swapper/211:30:152
322242699602,19cyclictest0-21swapper/211:40:152
3222428995819,19cyclictest0-21swapper/412:05:584
3222428995818,39cyclictest3269450-21acpi08:35:124
3222428995737,19cyclictest601ktimers/411:53:164
3222428995719,37cyclictest0-21swapper/409:16:194
3222428995716,40cyclictest1086-21runrttasks11:55:364
3222428995617,19cyclictest236199-21snmpd11:24:424
3222428995614,40cyclictest3254904-21taskset08:07:394
3222428995536,19cyclictest1086-21runrttasks10:06:304
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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