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2026-08-09 - 05:40
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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 rackdslot3.osadl.org (updated Sun Aug 09, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491230163,23phc2sys0-21swapper/319:09:003
253882205171,22sleep10-21swapper/119:07:061
255992204170,22sleep00-21swapper/019:09:500
252712204171,23sleep20-21swapper/219:05:422
2792521560,7sleep02590399cyclictest23:45:010
25612211365,38sleep20-21swapper/219:09:592
134491740,1getstats6154-1kworker/3:2H23:56:093
40372600,4sleep34039-21processes00:00:253
303492600,6sleep20-21swapper/223:50:122
25906995929,3cyclictest41-21ksoftirqd/323:15:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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