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2026-06-20 - 11:26
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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
Characteristics of the 20 highest latencies:
System rackdslot0.osadl.org (updated Sat Jun 20, 2026 00:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24025993129,1cyclictest0-21swapper/020:40:150
24027992115,5cyclictest0-21swapper/221:12:512
24027992115,5cyclictest0-21swapper/221:12:512
2402799201,16cyclictest16811-21perf00:40:002
24026992018,1cyclictest0-21swapper/123:05:121
2402699201,18cyclictest30097-21if_lxdbr000:05:171
2402799193,1cyclictest0-21swapper/200:30:172
24027991917,1cyclictest0-21swapper/223:34:432
24027991917,1cyclictest0-21swapper/223:16:252
24027991917,1cyclictest0-21swapper/222:59:192
24027991916,2cyclictest20368-21expr20:55:192
2402799190,1cyclictest0-21swapper/220:34:382
2402799190,18cyclictest6976-21nfsd422:25:182
2402799190,18cyclictest399-20systemd-journal21:57:252
2402799190,18cyclictest0-21swapper/219:23:022
2402699192,16cyclictest5119-21date20:30:011
2402699192,16cyclictest1829-21systemd-journal19:31:491
2402699192,16cyclictest1829-21systemd-journal19:31:491
24026991917,1cyclictest0-21swapper/122:45:171
24026991917,1cyclictest0-21swapper/120:08:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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