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2026-05-13 - 01:45
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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 Tue May 12, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
511799210,20cyclictest843-21systemd-network12:17:522
511399214,8cyclictest0-21swapper/109:43:541
511399210,3cyclictest0-21swapper/109:18:351
511399203,8cyclictest0-21swapper/111:09:021
511399202,3cyclictest0-21swapper/111:00:151
5117991914,3cyclictest0-21swapper/208:32:472
511799191,17cyclictest0-21swapper/209:30:012
511799190,16cyclictest3989-21H222:10:212
511399193,15cyclictest0-21swapper/107:55:011
511299192,1cyclictest0-21swapper/009:18:430
5112991916,2cyclictest681-21cut08:00:000
5112991914,4cyclictest0-21swapper/007:50:160
511299190,3cyclictest0-21swapper/011:11:270
511299190,3cyclictest0-21swapper/011:11:260
511299190,18cyclictest15499-21http_loadtime09:20:150
511799182,15cyclictest27715-21idleruntime08:45:162
511799182,15cyclictest0-21swapper/208:51:122
5117991816,1cyclictest28-21ksoftirqd/207:11:102
5117991816,1cyclictest2289-21switchtime08:55:212
5117991814,3cyclictest18461-21munin-plugin-st08:30:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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