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2026-04-23 - 07:12
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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 rackbslot7.osadl.org (updated Thu Apr 23, 2026 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18037211210,58sleep218077-21fschecks_count18:58:022
193369910236,29cyclictest30847-21seq19:35:530
2659321000,6sleep20-21swapper/219:22:592
2008021000,8sleep30-21swapper/322:38:173
270782990,3sleep30-21swapper/321:03:003
19336999938,25cyclictest13310-21seq20:19:480
19336999938,25cyclictest13310-21seq20:19:480
19336999643,21cyclictest10637-21seq21:28:510
19336999643,21cyclictest10637-21seq21:28:510
19336999629,27cyclictest19981-21runrttasks20:42:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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