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2026-09-05 - 14:46
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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 rack5slot2.osadl.org (updated Sat Sep 05, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
208282204188,11sleep10-21swapper/107:09:481
206832204187,12sleep30-21swapper/307:07:573
206852183168,11sleep00-21swapper/007:07:590
205552183166,12sleep20-21swapper/207:06:152
172602480,1sleep317258-21grep08:05:133
22032450,0sleep10-21swapper/111:45:311
261902420,0sleep10-21swapper/107:15:191
139702390,1sleep12102299cyclictest11:35:181
2101799102,4cyclictest7954-21munin-run11:00:010
210179992,3cyclictest57150irq/125-eth011:20:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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