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2026-08-23 - 05:21
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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 rackcslot4.osadl.org (updated Sun Aug 23, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188943923620,9sleep00-21swapper/019:05:220
18904732318276,28sleep10-21swapper/119:07:371
204508821540,4sleep0161rcuc/023:40:010
136599560,4rtkit-daemon1364-21rtkit-daemon22:29:050
19979712510,5sleep10-21swapper/122:32:011
136599510,4rtkit-daemon1364-21rtkit-daemon23:51:110
136599500,4rtkit-daemon1364-21rtkit-daemon21:44:480
136599480,4rtkit-daemon1364-21rtkit-daemon21:07:401
136599470,4rtkit-daemon1364-21rtkit-daemon19:14:180
136599450,5rtkit-daemon1911238-21apt-get20:00:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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