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2026-06-24 - 21:21
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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 rackcslot0.osadl.org (updated Wed Jun 24, 2026 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1662621450,7sleep141716099cyclictest21:21:406
163642133106,22sleep70-21swapper/719:08:5613
163642133106,22sleep70-21swapper/719:08:5613
166742125103,18sleep40-21swapper/419:12:3810
166742125103,18sleep40-21swapper/419:12:3810
164162120106,10sleep20-21swapper/219:09:398
164162120106,10sleep20-21swapper/219:09:398
16625211795,17sleep120-21swapper/1219:11:584
16625211795,17sleep120-21swapper/1219:11:584
3201521160,1sleep150-21swapper/1521:55:237
3201521160,1sleep150-21swapper/1521:55:237
2219521150,1sleep30-21swapper/323:20:469
16473211393,14sleep30-21swapper/319:10:299
16473211393,14sleep30-21swapper/319:10:299
2467721110,8sleep31714499cyclictest21:54:399
2467721110,8sleep31714499cyclictest21:54:399
1950921100,1sleep1119504-21sshd21:51:023
1950921100,1sleep1119504-21sshd21:51:023
16645210691,10sleep150-21swapper/1519:12:177
16645210691,10sleep150-21swapper/1519:12:177
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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