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2026-05-17 - 14:18
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Sun May 17, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
47144323730,30sleep10-21swapper/119:05:291
4718522237194,29sleep00-21swapper/019:06:230
6109712710,3chrt0-21swapper/023:10:150
179699590,4rtkit-daemon1795-21rtkit-daemon19:15:471
179699550,3rtkit-daemon1795-21rtkit-daemon21:18:300
179699520,4rtkit-daemon1795-21rtkit-daemon21:56:150
179699520,4rtkit-daemon1795-21rtkit-daemon21:56:140
179699500,4rtkit-daemon1795-21rtkit-daemon21:07:190
179699500,4rtkit-daemon1795-21rtkit-daemon19:40:141
179699480,3rtkit-daemon1795-21rtkit-daemon23:36:231
472343994614,8cyclictest26-21ksoftirqd/121:15:011
179699400,3rtkit-daemon0-21swapper/000:14:120
47234399399,8cyclictest26-21ksoftirqd/119:35:011
47234399382,15cyclictest26-21ksoftirqd/123:15:271
47234099388,5cyclictest13-21ksoftirqd/023:50:000
179699380,3rtkit-daemon1795-21rtkit-daemon21:40:190
179699380,3rtkit-daemon0-21swapper/022:50:080
179699380,10rtkit-daemon631253-21ssh23:37:160
179699370,3rtkit-daemon0-21swapper/122:02:201
47234099360,4cyclictest13-21ksoftirqd/022:25:010
179699360,3rtkit-daemon0-21swapper/123:03:111
179699360,3rtkit-daemon0-21swapper/021:40:511
47234399350,9cyclictest489064-21kworker/1:020:05:011
47234399350,1cyclictest0-21swapper/120:45:171
179699350,4rtkit-daemon1795-21rtkit-daemon22:45:000
179699350,4rtkit-daemon1795-21rtkit-daemon21:33:100
179699350,3rtkit-daemon0-21swapper/119:44:070
179699350,3rtkit-daemon0-21swapper/100:32:551
472343993412,8cyclictest26-21ksoftirqd/100:25:001
179699340,4rtkit-daemon1795-21rtkit-daemon22:58:030
179699340,3rtkit-daemon0-21swapper/119:22:201
179699340,3rtkit-daemon0-21swapper/119:22:201
179699340,3rtkit-daemon0-21swapper/023:34:080
472343993330,2cyclictest592015-1kworker/1:1H22:50:061
472343993315,11cyclictest570198-21apt-get22:15:141
47234099331,4cyclictest13-21ksoftirqd/023:00:240
47234099330,8cyclictest497310-21apt-get20:10:110
179699330,4rtkit-daemon1795-21rtkit-daemon19:55:061
179699330,4rtkit-daemon1795-21rtkit-daemon19:50:580
179699330,3rtkit-daemon1795-21rtkit-daemon00:26:351
179699330,3rtkit-daemon0-21swapper/021:25:291
6360162320,3chrt0-21swapper/023:44:440
472343993215,11cyclictest519228-21apt-get21:05:141
472343993215,11cyclictest478908-21apt-get19:25:151
179699320,4rtkit-daemon1795-21rtkit-daemon23:53:050
179699320,4rtkit-daemon1795-21rtkit-daemon22:33:110
179699320,4rtkit-daemon1795-21rtkit-daemon20:05:430
179699320,4rtkit-daemon1795-21rtkit-daemon00:38:041
179699320,4rtkit-daemon1795-21rtkit-daemon00:11:071
179699320,3rtkit-daemon1795-21rtkit-daemon23:08:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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