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2025-06-29 - 00:31
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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 rackbslot7.osadl.org (updated Sat Jun 28, 2025 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12465212315,74sleep012183-21/usr/sbin/munin07:02:200
136879911963,15cyclictest15321-21kworker/u17:2-rpciod10:57:361
2540921130,6sleep20-21swapper/211:15:082
2540921130,6sleep20-21swapper/211:15:082
136949910838,33cyclictest0-21swapper/210:32:132
136949910838,33cyclictest0-21swapper/210:32:132
136779910617,59cyclictest6803-21sh12:36:140
13677991054,70cyclictest12070-21sh10:50:510
13677991054,58cyclictest0-21swapper/010:12:170
1347721046,16sleep10-21swapper/107:06:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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