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2025-06-28 - 23:10
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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 rackaslot8.osadl.org (updated Sat Jun 28, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127512320251,22sleep10-21swapper/107:09:021
126192272237,21sleep30-21swapper/307:07:193
125482263232,20sleep00-21swapper/007:06:220
127322261227,22sleep20-21swapper/207:08:472
22032610,0sleep20-21swapper/209:35:452
100112570,0sleep10-21swapper/109:15:221
311262550,0sleep10-21swapper/109:33:351
65062530,0sleep10-21swapper/111:54:151
250802240,0sleep10-21swapper/109:28:351
228912210,0sleep00-21swapper/012:24:090
131772190,1sleep20-21swapper/207:10:172
276562180,0sleep30-21swapper/312:06:303
126112160,0sleep20-21swapper/209:17:552
74632150,0sleep30-21swapper/311:28:553
311442110,0sleep00-21swapper/012:29:130
322622100,0sleep20-21swapper/210:28:242
3176290,1sleep30-21swapper/312:11:223
129369994,3cyclictest19982-21systemd-journal09:23:072
129279998,1cyclictest12-21ksoftirqd/012:05:000
3576280,0sleep0131rcuc/010:30:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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