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2026-05-19 - 13:59
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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 20 highest latencies:
System rackdslot0.osadl.org (updated Tue May 19, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
751299253,14cyclictest0-21swapper/019:31:570
7521992314,5cyclictest0-21swapper/223:29:592
751599220,5cyclictest0-21swapper/119:18:451
752199202,1cyclictest0-21swapper/221:54:312
7515992017,2cyclictest11796-21cron00:05:011
7512992017,2cyclictest2638-21mii-tool20:55:160
752199193,15cyclictest28-21ksoftirqd/220:50:172
752199192,1cyclictest0-21swapper/223:45:162
7521991916,2cyclictest22122-21date23:25:022
7521991914,1cyclictest0-21swapper/223:15:172
7521991913,5cyclictest0-21swapper/222:51:092
752199190,5cyclictest0-21swapper/221:18:262
752199190,3cyclictest0-21swapper/221:35:182
752199190,1cyclictest0-21swapper/220:20:362
752199190,18cyclictest1280-21grep19:55:162
752199190,18cyclictest0-21swapper/220:09:392
751599192,16cyclictest0-21swapper/123:42:581
751599192,16cyclictest0-21swapper/100:39:041
751599190,1cyclictest0-21swapper/120:15:161
751299199,5cyclictest0-21swapper/000:40:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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