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2025-08-29 - 14:47
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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 20 highest latencies:
System rack4slot6.osadl.org (updated Fri Aug 29, 2025 12:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6674521130,110pltrace0-21swapper/507:08:415
6674521130,110pltrace0-21swapper/507:08:415
3885521130,103pltrace0-21swapper/707:05:237
3885521130,103pltrace0-21swapper/707:05:237
3885521090,100pltrace0-21swapper/207:05:212
3885521090,100pltrace0-21swapper/207:05:202
3885521080,99pltrace0-21swapper/607:05:196
3885521080,99pltrace0-21swapper/607:05:196
6674521040,96pltrace0-21swapper/107:09:561
6674521040,96pltrace0-21swapper/107:09:561
388552950,91pltrace0-21swapper/307:05:463
388552950,91pltrace0-21swapper/307:05:463
652626940,10sleep00-21swapper/007:05:300
652626940,10sleep00-21swapper/007:05:290
672425844,10sleep40-21swapper/407:07:584
672425844,10sleep40-21swapper/407:07:584
1427452370,6pltrace78-21ksoftirqd/708:19:527
1261052310,2pltrace0-21swapper/709:15:227
708799230,15cyclictest0-21swapper/612:06:166
589252220,4pltrace0-21swapper/708:05:427
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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