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2026-06-09 - 00:54
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Mon Jun 08, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
802399491404,80cyclictest0-21swapper/009:20:210
802599448386,47cyclictest8731-21cut07:10:191
76992393372,15sleep10-21swapper/107:07:061
802599346278,30cyclictest0-21swapper/109:20:211
80239911410,98cyclictest0-21swapper/009:28:590
2286991050,4rtkit-daemon2285-21rtkit-daemon11:57:351
8023999212,63cyclictest0-21swapper/008:11:000
8023999011,60cyclictest0-21swapper/012:11:000
8023999010,63cyclictest0-21swapper/012:24:590
228699890,47rtkit-daemon2285-21rtkit-daemon10:43:531
8023998518,54cyclictest0-21swapper/012:33:000
8023998517,53cyclictest0-21swapper/010:14:590
802399827,9cyclictest0-21swapper/011:10:020
228699820,5rtkit-daemon2285-21rtkit-daemon10:05:121
228699820,4rtkit-daemon2285-21rtkit-daemon11:27:401
228699810,5rtkit-daemon2285-21rtkit-daemon12:00:241
228699790,4rtkit-daemon2285-21rtkit-daemon11:01:231
802399782,55cyclictest21934-21grep07:45:260
228699780,35rtkit-daemon2285-21rtkit-daemon11:42:041
802399773,46cyclictest24597-21munin-run09:20:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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