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2026-07-12 - 17:37
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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 10 highest latencies:
System rack3slot6.osadl.org (updated Sun Jul 12, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2523629431,51sleep10-21swapper/107:06:531
25714998158,9cyclictest22429-21aten2.4_r3power10:00:260
75282780,10sleep1251rcuc/110:45:371
25715997825,47cyclictest26-21ksoftirqd/108:25:001
2397627527,37sleep00-21swapper/007:05:150
25714997250,15cyclictest9531-21apt-get09:25:150
25714997236,17cyclictest14-21ksoftirqd/011:04:210
25715997119,46cyclictest26-21ksoftirqd/107:35:161
25714997032,20cyclictest14-21ksoftirqd/011:34:270
25714996844,9cyclictest14-21ksoftirqd/008:30:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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