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2026-07-01 - 11:57
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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 Wed Jul 01, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22716213064,8sleep30-21swapper/319:07:003
228092126116,7sleep10-21swapper/119:08:101
227372117108,6sleep20-21swapper/219:07:152
227852115104,7sleep00-21swapper/019:07:540
39422640,1sleep10-21swapper/100:10:131
154382640,1sleep20-21swapper/223:20:012
259932610,1sleep120-21rcuc/123:25:241
300802600,1sleep00-21swapper/000:00:190
196822580,0sleep00-21swapper/022:55:120
118222520,0sleep10-21swapper/123:15:191
23127993515,19cyclictest0-21swapper/121:15:121
2313299341,32cyclictest0-21swapper/200:04:492
2313299291,21cyclictest0-21swapper/223:24:512
2313299281,26cyclictest0-21swapper/220:55:062
2313299280,27cyclictest0-21swapper/219:23:322
23132992718,1cyclictest749-21snmpd23:52:012
23127992723,3cyclictest0-21swapper/100:19:161
2312799270,26cyclictest0-21swapper/122:33:061
2312799270,26cyclictest0-21swapper/121:52:511
2312499270,25cyclictest23872-21awk20:34:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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