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2025-12-06 - 04:01
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack9slot2.osadl.org (updated Sat Dec 06, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134852312274,25sleep10-21swapper/11
134812301262,26sleep20-21swapper/22
13988992880,284cyclictest11082-21date2
1399399283278,3cyclictest0-21swapper/33
120532255184,24sleep00-21swapper/00
135542252185,25sleep30-21swapper/33
1397899227221,3cyclictest11075-21gpgv0
1398599175171,2cyclictest0-21swapper/11
40621350,1sleep00-21swapper/00
690121220,3sleep31399399cyclictest3
185272700,4sleep20-21swapper/22
321752680,2sleep232182-21gltestperf2
215682410,1sleep30-21swapper/33
13978993514,4cyclictest9-21ksoftirqd/00
13978993412,4cyclictest9-21ksoftirqd/00
13978992910,4cyclictest9-21ksoftirqd/00
297192280,3sleep20-21swapper/22
1397899278,4cyclictest9-21ksoftirqd/00
1397899277,4cyclictest9-21ksoftirqd/00
13978992618,5cyclictest23927-21sh0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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