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2026-11-01 - 01:21
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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 rack5slot2.osadl.org (updated Sat Oct 31, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251902204190,10sleep10-21swapper/107:09:001
249532189173,12sleep00-21swapper/007:05:540
249212177160,12sleep30-21swapper/307:05:293
24955211698,13sleep20-21swapper/207:05:552
301952910,0sleep320857-21diskmemload11:58:183
259902460,0sleep20-21swapper/210:34:022
203862440,0sleep20-21swapper/208:00:202
312472430,0sleep10-21swapper/110:52:501
65342420,0sleep10-21swapper/109:50:421
107552400,0sleep20-21swapper/210:42:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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