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2026-04-02 - 17:26
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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 Apr 02, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10770492251182,53sleep00-21swapper/007:05:150
10781872237195,28sleep10-21swapper/107:05:571
179699550,5rtkit-daemon1795-21rtkit-daemon08:45:211
179699530,4rtkit-daemon1795-21rtkit-daemon11:42:431
179699520,4rtkit-daemon1795-21rtkit-daemon09:28:300
12523382510,4sleep10-21swapper/112:16:161
179699500,3rtkit-daemon1795-21rtkit-daemon10:00:160
179699500,3rtkit-daemon1795-21rtkit-daemon09:03:570
179699490,3rtkit-daemon1795-21rtkit-daemon08:55:390
11627502490,4sleep11162747-21apt-config10:10:021
12399482480,6sleep00-21swapper/011:59:580
179699470,3rtkit-daemon1795-21rtkit-daemon11:03:230
12057032450,4sleep10-21swapper/111:10:171
179699440,5rtkit-daemon1247222-21apt-get12:10:110
179699430,4rtkit-daemon0-21swapper/112:02:240
179699420,3rtkit-daemon1795-21rtkit-daemon11:07:511
179699400,3rtkit-daemon0-21swapper/009:33:200
179699380,3rtkit-daemon0-21swapper/110:21:461
179699370,4rtkit-daemon0-21swapper/107:22:291
179699370,3rtkit-daemon0-21swapper/107:46:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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