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2026-07-16 - 03:52
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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 rackdslot4.osadl.org (updated Thu Jul 16, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
305392203168,23sleep30-21swapper/319:06:483
305892202169,22sleep10-21swapper/119:07:271
306252201167,22sleep20-21swapper/219:07:552
305612201168,21sleep00-21swapper/019:07:050
1908821820,7sleep33108399cyclictest00:10:163
138591163125,13phc2sys0-21swapper/319:10:013
602321580,7sleep23108299cyclictest22:40:002
31080996810,16cyclictest14936-21grep00:00:230
3108099618,10cyclictest6126-21cstates20:30:130
315982600,2sleep131601-21sed19:10:151
31080996012,11cyclictest12958-21vmstat22:50:270
3108099599,11cyclictest25716-21date21:10:010
3108099549,11cyclictest14809-21sensors20:45:250
3108099538,7cyclictest28273-21apt-get21:15:110
3108099538,11cyclictest9603-21cat21:40:200
3108099538,11cyclictest9603-21cat21:40:200
3108099538,10cyclictest5072-21mailstats21:30:250
3108099518,7cyclictest3756-21apt-get19:20:120
3108099518,14cyclictest22802-21sshd21:01:040
3108099508,13cyclictest12122-21irqstats19:35:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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