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2025-04-18 - 19:20
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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 rack9slot2.osadl.org (updated Fri Apr 18, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120722285251,22sleep00-21swapper/00
121882277218,47sleep10-21swapper/11
1247299276271,3cyclictest0-21swapper/22
122452275190,70sleep20-21swapper/22
1247799237232,3cyclictest14396-21awk3
1246899233225,4cyclictest14381-21munin-run1
121202233196,24sleep30-21swapper/33
1246499121116,3cyclictest14394-21perf0
283652680,2sleep21247299cyclictest2
283652680,2sleep21247299cyclictest2
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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