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2026-08-26 - 19:06
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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
Characteristics of the 20 highest latencies:
System rackeslot2.osadl.org (updated Wed Aug 26, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
181525322470,2sleep30-21swapper/309:50:023
175379121070,2sleep30-21swapper/309:15:023
19493392340,1sleep10-21swapper/111:07:131
17966032340,2sleep30-21swapper/309:39:593
157918099240,2cyclictest1724188-21dump-pmu-power08:55:010
1579180992213,5cyclictest2099870-21runrttasks12:34:030
1579180992114,6cyclictest1579178-21cyclictest11:29:530
1579182992017,1cyclictest0-21swapper/211:53:092
1579182992017,1cyclictest0-21swapper/210:20:092
1579181992012,3cyclictest935-21wpa_supplicant07:30:021
1579180992016,2cyclictest777-21avahi-daemon08:05:030
157918099201,14cyclictest1827189-21aten_repower_po09:59:460
1579181991912,3cyclictest1802003-21kthreadcore09:44:591
1579180991917,1cyclictest2108999-21ssh12:39:350
1579180991913,1cyclictest1885404-21ssh10:30:000
1579180991912,6cyclictest2016985-21kthreadcore11:45:000
1579180991912,6cyclictest1933187-21cpuspeed10:59:540
157918099191,1cyclictest2056094-21apt-get12:09:350
2213291180,3phc2sys0-21swapper/311:58:343
157918199188,5cyclictest0-21swapper/110:34:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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