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2025-02-17 - 13:55
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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 10 highest latencies:
System rack1slot2.osadl.org (updated Mon Feb 17, 2025 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
670425049,0sleep00-21swapper/006:32:580
666923627,0sleep10-21swapper/106:32:351
685423526,0sleep20-21swapper/206:34:442
692023223,0sleep30-21swapper/306:35:293
70949980,0cyclictest0-21swapper/107:27:031
70939988,0cyclictest0-21swapper/008:37:060
70949973,0cyclictest5930-21awk11:56:521
70949973,0cyclictest23871-21snmpd10:07:161
70949973,0cyclictest21882-21sadc08:16:411
70949973,0cyclictest21456-21sadc06:46:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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