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2026-06-29 - 05:18
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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 20 highest latencies:
System rackdslot3.osadl.org (updated Mon Jun 29, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
116142247202,35sleep20-21swapper/219:09:592
139491231165,22phc2sys0-21swapper/319:08:013
116132206172,22sleep10-21swapper/119:09:571
116062206173,22sleep00-21swapper/019:09:530
139391590,1ptp4l7030-21irqstats22:20:193
139391580,1ptp4l401ktimersoftd/323:00:123
139391520,38ptp4l0-21swapper/319:10:003
71952510,2sleep00-21swapper/021:15:000
139391500,1ptp4l401ktimersoftd/323:25:503
50742470,4sleep35079-21cpuspeed_turbos21:10:133
11908994527,15cyclictest9-21ksoftirqd/021:15:120
139391440,0ptp4l401ktimersoftd/320:45:183
139391430,0ptp4l401ktimersoftd/320:15:323
139391430,0ptp4l401ktimersoftd/300:38:273
11910994337,3cyclictest26325-21cron21:55:002
1191099430,41cyclictest0-21swapper/222:50:232
1191099430,1cyclictest0-21swapper/223:35:232
139391420,0ptp4l401ktimersoftd/323:45:133
139391420,0ptp4l401ktimersoftd/319:27:053
57898410,8rtkit-daemon0-21swapper/019:41:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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