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2026-09-04 - 04:27
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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 Fri Sep 04, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3797210028,19sleep10-21swapper/119:07:401
4204999645,33cyclictest26-21ksoftirqd/100:25:121
269229338,39sleep00-21swapper/019:05:170
98592820,13sleep09862-21missed_timers23:55:280
298852800,4sleep10-21swapper/120:20:011
4204997924,16cyclictest503-21snmpd21:36:531
4204997916,12cyclictest0-21swapper/120:50:301
120582790,7chrt0-21swapper/022:30:350
4204997821,18cyclictest19645-21seq19:50:341
4204997740,27cyclictest26-21ksoftirqd/100:30:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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