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2025-12-23 - 23:01
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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 rackdslot3.osadl.org (updated Tue Dec 23, 2025 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59022233168,21sleep30-21swapper/307:07:263
59022233168,21sleep30-21swapper/307:07:253
59012202169,22sleep20-21swapper/207:07:252
59012202169,22sleep20-21swapper/207:07:252
58482202169,21sleep10-21swapper/107:06:431
58482202169,21sleep10-21swapper/107:06:421
58992201168,22sleep00-21swapper/007:07:230
58992201168,22sleep00-21swapper/007:07:230
682321520,5sleep0639199cyclictest08:15:250
639299611,58cyclictest0-21swapper/111:36:131
134391570,8getstats639499cyclictest08:17:233
42492560,1sleep20-21swapper/211:35:182
639299530,17cyclictest7501-21chrt10:35:111
6391995044,3cyclictest207-21systemd-journal09:19:590
306702490,1sleep20-21swapper/211:20:242
639299481,16cyclictest8006-21ls07:10:291
6392994741,4cyclictest25-21ksoftirqd/108:45:001
639299471,14cyclictest12676-21ls07:20:261
639299462,8cyclictest6365-21apt-get09:25:141
139391460,0ptp4l401ktimersoftd/310:00:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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