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2025-12-22 - 09:12
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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 Mon Dec 22, 2025 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1923262261199,47sleep10-21swapper/119:05:261
1931962245203,28sleep00-21swapper/019:07:270
179699530,4rtkit-daemon1795-21rtkit-daemon19:33:191
179699500,4rtkit-daemon1795-21rtkit-daemon21:44:210
179699500,4rtkit-daemon1795-21rtkit-daemon00:16:120
179699500,3rtkit-daemon1795-21rtkit-daemon23:08:451
179699500,3rtkit-daemon1795-21rtkit-daemon22:01:030
179699490,4rtkit-daemon1795-21rtkit-daemon23:47:181
179699490,4rtkit-daemon1795-21rtkit-daemon21:14:031
179699490,3rtkit-daemon1795-21rtkit-daemon23:54:571
179699480,3rtkit-daemon1795-21rtkit-daemon20:28:061
179699480,3rtkit-daemon1795-21rtkit-daemon20:23:491
179699480,10rtkit-daemon0-21swapper/119:21:471
179699470,3rtkit-daemon1795-21rtkit-daemon19:17:071
179699460,3rtkit-daemon1795-21rtkit-daemon20:43:541
179699380,3rtkit-daemon0-21swapper/119:14:051
179699370,3rtkit-daemon0-21swapper/122:13:271
179699360,5rtkit-daemon270190-21pmu-power22:20:220
179699360,3rtkit-daemon0-21swapper/119:52:570
179699350,4rtkit-daemon1795-21rtkit-daemon23:30:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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