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2026-07-11 - 15:05
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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 rack8slot4.osadl.org (updated Sat Jul 11, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35271572231171,19sleep70-21swapper/707:09:157
35270872231169,52sleep20-21swapper/207:08:142
35268952231169,18sleep60-21swapper/607:05:296
35272012228166,19sleep40-21swapper/407:09:534
35270812224166,46sleep50-21swapper/507:08:095
35270032213185,18sleep10-21swapper/107:07:001
35269012211181,20sleep30-21swapper/307:05:333
35269372204177,17sleep00-21swapper/007:06:030
37016042570,0sleep30-21swapper/312:20:083
352807099340,32cyclictest3608197-21fschecks_time09:35:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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