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2026-01-02 - 00:50
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack5slot4.osadl.org (updated Thu Jan 01, 2026 12:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5333211198,10sleep00-21swapper/007:07:390
5411210393,6sleep10-21swapper/107:08:411
5402210292,7sleep20-21swapper/207:08:352
5296210292,7sleep30-21swapper/307:07:113
234702660,5sleep0568999cyclictest11:10:200
168412570,1sleep016844-21kthreadcore09:10:180
128952570,1sleep10-21swapper/107:15:011
146912550,1sleep214694-21kthreadcore10:35:182
205392530,0sleep20-21swapper/212:05:202
568999300,19cyclictest0-21swapper/012:06:430
569599270,26cyclictest0-21swapper/211:56:132
569599270,26cyclictest0-21swapper/211:35:512
569599270,26cyclictest0-21swapper/210:23:422
569399277,19cyclictest0-21swapper/109:45:111
569399270,26cyclictest0-21swapper/112:18:521
569399270,26cyclictest0-21swapper/111:49:251
569399270,26cyclictest0-21swapper/111:39:091
569399270,26cyclictest0-21swapper/111:33:571
569399270,26cyclictest0-21swapper/111:27:341
569399270,26cyclictest0-21swapper/110:02:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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