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2026-05-07 - 22:15
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack0slot0.osadl.org (updated Thu May 07, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237121320,0sleep70-21swapper/710:27:497
70602790,0sleep00-21swapper/010:10:190
7112780,0sleep00-21swapper/009:55:530
16992750,1sleep5591ktimersoftd/507:10:215
23202740,0sleep6671rcuc/611:58:206
50062730,0sleep081ktimersoftd/007:20:000
247322720,0sleep10-21swapper/109:50:161
216732720,0sleep20-21swapper/212:37:192
212822720,0sleep70-21swapper/712:10:077
232322710,0sleep023234-21id12:33:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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