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2025-07-15 - 03:20
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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 rack8slot4.osadl.org (updated Tue Jul 15, 2025 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19571912224165,18sleep10-21swapper/119:08:331
19571632224168,18sleep30-21swapper/319:08:113
19550882224168,42sleep40-21swapper/419:06:114
19571532222189,21sleep20-21swapper/219:08:012
19571482215181,21sleep60-21swapper/619:07:576
19572632214183,20sleep70-21swapper/719:09:357
19571692212182,19sleep00-21swapper/019:08:160
19550802208161,37sleep50-21swapper/519:06:045
1957512993613,0cyclictest0-21swapper/500:30:275
195751099320,1cyclictest2086184-21munin-run23:05:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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