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2026-05-13 - 06:58
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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 Wed May 13, 2026 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2260099231,16cyclictest20267-21wc20:00:172
2260099230,21cyclictest3546-21cron00:17:002
22600992214,7cyclictest0-21swapper/221:37:282
2260099220,2cyclictest5220-21grep20:30:142
2260099220,21cyclictest0-21swapper/221:15:192
2260099220,1cyclictest8513-21netstat20:35:162
22600992115,5cyclictest16949-21grep20:50:182
22600992114,6cyclictest6266-21expr21:30:152
22600992114,6cyclictest0-21swapper/219:55:202
22600992113,7cyclictest28869-21proxymap21:12:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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