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2026-03-29 - 10:55
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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 rackcslot4.osadl.org (updated Sun Mar 29, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
328993323430,9sleep00-21swapper/019:05:110
32914802258191,53sleep10-21swapper/119:08:031
179699630,4rtkit-daemon1795-21rtkit-daemon00:23:340
34454562620,2sleep00-21swapper/023:40:130
33516562600,4sleep10-21swapper/121:25:221
179699560,3rtkit-daemon0-21swapper/120:55:001
179699540,4rtkit-daemon0-21swapper/100:08:231
179699540,3rtkit-daemon1795-21rtkit-daemon22:57:150
179699540,3rtkit-daemon0-21swapper/122:55:501
179699540,3rtkit-daemon0-21swapper/121:32:361
179699540,3rtkit-daemon0-21swapper/120:17:161
179699530,4rtkit-daemon1795-21rtkit-daemon00:20:121
179699530,3rtkit-daemon0-21swapper/122:37:471
179699530,3rtkit-daemon0-21swapper/120:05:181
179699530,3rtkit-daemon0-21swapper/119:39:011
179699530,3rtkit-daemon0-21swapper/100:13:361
179699520,4rtkit-daemon1795-21rtkit-daemon00:32:021
179699520,3rtkit-daemon0-21swapper/123:32:261
179699520,3rtkit-daemon0-21swapper/123:22:021
179699520,3rtkit-daemon0-21swapper/122:29:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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