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2026-06-10 - 13:34
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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 rackfslot7.osadl.org (updated Wed Jun 10, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67347999107105,1cyclictest722966-21apt20:40:121
673479998143,19cyclictest331ktimers/122:15:051
673479997315,39cyclictest0-21swapper/122:35:021
67348299717,19cyclictest0-21swapper/420:10:164
673479996911,39cyclictest779277-21ld22:20:211
673479996829,39cyclictest0-21swapper/100:26:001
673479996627,38cyclictest846065-21rt-features00:20:201
67347999646,19cyclictest0-21swapper/119:20:201
67347999645,19cyclictest0-21swapper/120:23:291
673479996425,39cyclictest0-21swapper/121:53:371
673479996326,18cyclictest101750irq/41-eno2-TxRx-223:13:491
673479996244,18cyclictest331ktimers/123:24:171
673479996021,39cyclictest0-21swapper/123:17:531
673479996018,20cyclictest829478-21sed23:50:241
67347999591,39cyclictest752957-21munin-run21:35:011
673483995840,18cyclictest0-21swapper/522:00:155
673479995819,39cyclictest0-21swapper/123:02:451
673479995819,39cyclictest0-21swapper/120:00:451
673479995739,18cyclictest0-21swapper/122:39:571
673479995718,39cyclictest0-21swapper/123:57:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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