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2025-02-06 - 14:39
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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 rack8slot4.osadl.org (updated Thu Feb 06, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39253732256185,23sleep40-21swapper/407:09:194
39252992235180,43sleep50-21swapper/507:08:165
39252942224171,17sleep00-21swapper/007:08:110
39232042220167,17sleep70-21swapper/707:06:017
39231892219189,19sleep10-21swapper/107:05:471
39252702217184,21sleep30-21swapper/307:07:503
39232462213181,21sleep20-21swapper/207:06:362
39253952212182,19sleep60-21swapper/607:09:386
39553142470,0sleep30-21swapper/308:06:433
392563099370,30cyclictest4061158-21idleruntime-cro11:50:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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