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2025-12-13 - 07:58
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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 Sat Dec 13, 2025 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14277502273211,47sleep00-21swapper/019:06:050
14277572263188,61sleep10-21swapper/119:06:111
179699530,4rtkit-daemon1795-21rtkit-daemon19:39:221
179699510,4rtkit-daemon1795-21rtkit-daemon00:25:171
179699480,3rtkit-daemon1795-21rtkit-daemon20:07:501
179699470,4rtkit-daemon1795-21rtkit-daemon00:35:050
179699380,3rtkit-daemon0-21swapper/120:36:461
179699370,3rtkit-daemon0-21swapper/120:22:331
142825299377,9cyclictest1531427-21apt-get23:25:121
179699360,3rtkit-daemon0-21swapper/123:34:560
179699360,3rtkit-daemon0-21swapper/120:31:441
179699360,3rtkit-daemon0-21swapper/119:26:301
179699360,3rtkit-daemon0-21swapper/021:15:270
179699360,3rtkit-daemon0-21swapper/000:32:390
142825299360,12cyclictest1533172-21apt-get23:30:061
179699350,5rtkit-daemon0-21swapper/019:20:311
179699350,4rtkit-daemon1795-21rtkit-daemon23:13:351
179699350,3rtkit-daemon0-21swapper/120:51:261
179699350,3rtkit-daemon0-21swapper/120:15:041
179699350,3rtkit-daemon0-21swapper/119:47:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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