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2025-12-29 - 05:34
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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 rack3slot0.osadl.org (updated Mon Dec 29, 2025 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241042760,2sleep7392999cyclictest22:10:027
200932750,2sleep4392699cyclictest22:30:094
38912480,0sleep60-21swapper/600:24:406
346024825,8sleep20-21swapper/219:05:002
232302470,0sleep00-21swapper/021:29:110
225422470,0sleep70-21swapper/700:36:507
172462470,0sleep50-21swapper/521:31:485
78072460,1sleep665-21ksoftirqd/623:23:376
259212450,1sleep025920-21grepconf.sh23:45:570
304022430,0sleep70-21swapper/723:09:057
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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