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2026-06-22 - 19:47
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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 Mon Jun 22, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30001822268191,28sleep10-21swapper/107:05:521
30005522262180,19sleep00-21swapper/007:09:500
308296321370,5sleep10-21swapper/109:55:081
32014792860,12sleep013-21ksoftirqd/012:39:230
179699680,8rtkit-daemon3015111-21expr07:40:220
179699610,5rtkit-daemon3020149-21diskstats07:55:170
179699610,5rtkit-daemon3001617-21ntp_states07:10:220
179699590,4rtkit-daemon3049073-21diskmemload11:41:020
179699570,3rtkit-daemon0-21swapper/009:40:230
179699560,5rtkit-daemon3039498-21apt-get08:45:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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