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2025-01-25 - 07:45
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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 Sat Jan 25, 2025 00:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
269600999112,39cyclictest283487-21kworker/u32:0+events_unbound20:20:171
269600999012,59cyclictest308434-21ls20:15:241
269600999012,59cyclictest308434-21ls20:15:231
269600998949,38cyclictest323737-21seq20:47:471
269600997719,39cyclictest345857-21forks21:30:111
269600997718,39cyclictest348647-21df21:35:131
269600997639,18cyclictest331ktimers/123:49:471
269600997414,40cyclictest297652-21taskset19:57:511
26960099740,34cyclictest0-21swapper/120:30:381
26960099740,34cyclictest0-21swapper/120:30:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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