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2026-03-19 - 03:21
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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 Thu Mar 19, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40871252267184,28sleep00-21swapper/019:07:420
40872262253180,57sleep10-21swapper/119:08:481
418794621720,6sleep14187949-21missed_timers22:20:201
41074842590,4sleep1251rcuc/119:55:251
179699580,4rtkit-daemon1795-21rtkit-daemon23:00:250
179699530,4rtkit-daemon1795-21rtkit-daemon23:52:520
179699460,3rtkit-daemon0-21swapper/120:28:021
179699450,3rtkit-daemon0-21swapper/122:43:401
179699450,3rtkit-daemon0-21swapper/120:21:531
179699430,3rtkit-daemon0-21swapper/122:55:281
179699430,3rtkit-daemon0-21swapper/122:32:011
179699410,3rtkit-daemon0-21swapper/120:18:121
179699400,3rtkit-daemon0-21swapper/023:45:311
41734152390,1sleep00-21swapper/022:00:160
179699390,3rtkit-daemon0-21swapper/000:37:591
179699380,3rtkit-daemon0-21swapper/023:25:421
179699380,3rtkit-daemon0-21swapper/000:30:071
179699370,4rtkit-daemon1795-21rtkit-daemon21:46:281
179699370,4rtkit-daemon1795-21rtkit-daemon21:07:441
179699370,3rtkit-daemon0-21swapper/019:17:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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