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2026-06-15 - 07:31
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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 rack3slot6.osadl.org (updated Mon Jun 15, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2408429624,27sleep00-21swapper/019:06:340
144712930,5sleep014473-21aten2.4-expect23:15:150
24588999119,63cyclictest0-21swapper/019:10:120
275882900,5chrt27591-21netstat19:15:271
2409728926,16sleep10-21swapper/119:06:441
24588998735,46cyclictest30126-21sed22:25:360
24588998665,14cyclictest0-21swapper/021:50:150
228482850,4chrt0-21swapper/120:35:261
24588998425,54cyclictest457-21dbus-daemon20:00:010
2458899798,64cyclictest0-21swapper/022:35:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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