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2026-06-23 - 22:40
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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 10 highest latencies:
System rackdslot0.osadl.org (updated Tue Jun 23, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4142992213,6cyclictest22949-21nfsd412:25:170
414299220,21cyclictest843-21systemd-network11:17:180
415199214,8cyclictest0-21swapper/208:40:512
4151992016,3cyclictest0-21swapper/209:50:132
415199200,6cyclictest0-21swapper/207:12:252
415199200,11cyclictest0-21swapper/209:15:552
415199200,11cyclictest0-21swapper/209:15:552
414799204,15cyclictest0-21swapper/110:53:211
414799203,16cyclictest25154-21taskset10:35:571
414799203,11cyclictest9385-21munin-run12:05:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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