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2026-04-29 - 10:16
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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 10 highest latencies:
System rackcslot0.osadl.org (updated Wed Apr 29, 2026 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2583621340,2sleep10919399cyclictest22:40:482
82752122104,14sleep150-21swapper/1519:09:237
83302121102,14sleep140-21swapper/1419:10:106
5305211991,23sleep20-21swapper/219:07:338
3178921140,0sleep40-21swapper/422:01:3910
8325211298,10sleep90-21swapper/919:10:0515
8500211090,15sleep10-21swapper/119:11:491
8326210687,14sleep100-21swapper/1019:10:062
2005721050,2sleep882-21ksoftirqd/822:03:2014
2962021030,2sleep229619-2110-uname23:33:228
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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