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2026-01-04 - 15:03
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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 Jan 04, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6012642263184,29sleep00-21swapper/019:07:370
6010862257190,52sleep10-21swapper/119:05:441
179699630,7rtkit-daemon1795-21rtkit-daemon23:00:141
179699610,4rtkit-daemon1795-21rtkit-daemon20:52:181
6036332580,4sleep0603519-21python319:15:000
7896082520,1chrt789588-21munin-run00:10:000
179699510,3rtkit-daemon1795-21rtkit-daemon20:55:251
179699490,3rtkit-daemon1795-21rtkit-daemon23:51:201
179699480,4rtkit-daemon1795-21rtkit-daemon20:36:161
8025432470,4sleep00-21swapper/000:25:200
179699450,4rtkit-daemon759580-21apt-get23:30:141
179699440,4rtkit-daemon1795-21rtkit-daemon00:14:150
179699410,3rtkit-daemon1795-21rtkit-daemon22:06:370
601618994011,7cyclictest26-21ksoftirqd/119:25:231
7166602390,4sleep00-21swapper/022:35:170
60161899391,7cyclictest261ksoftirqd/121:00:191
60161899380,8cyclictest26-21ksoftirqd/123:25:211
179699380,4rtkit-daemon0-21swapper/123:19:091
179699370,7rtkit-daemon806-21in:imuxsock19:34:460
179699370,3rtkit-daemon1795-21rtkit-daemon19:35:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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