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2025-12-22 - 19:12
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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 rackfslot7.osadl.org (updated Mon Dec 22, 2025 12:46:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
240725991180,1cyclictest0-21swapper/209:30:182
240725991110,109cyclictest0-21swapper/207:15:182
24072699867,59cyclictest1087-21snmpd07:51:123
240726997921,39cyclictest418587-21ntpq12:25:193
240726997857,21cyclictest5150ktimers/307:20:183
240726997857,21cyclictest5150ktimers/307:20:183
24072699780,59cyclictest245167-21ntpq07:15:223
240726997774,2cyclictest1086-21runrttasks07:28:213
240726997617,39cyclictest877-21mta-sts-daemon12:10:333
240726997617,39cyclictest877-21mta-sts-daemon12:10:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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