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2025-04-02 - 04:24
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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 rack0slot4.osadl.org (updated Wed Apr 02, 2025 00:47:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21829742354309,14sleep80-21swapper/819:04:1714
21832032351307,15sleep10-21swapper/119:07:091
21829752347323,14sleep90-21swapper/919:04:1815
21829032343320,15sleep130-21swapper/1319:03:165
21829362342319,15sleep120-21swapper/1219:03:494
21829982341317,15sleep150-21swapper/1519:04:407
21829802341318,15sleep140-21swapper/1419:04:246
21832152340315,16sleep70-21swapper/719:07:1413
21830482340316,16sleep40-21swapper/419:05:1710
21829882339316,15sleep50-21swapper/519:04:3011
21829412339316,15sleep00-21swapper/019:03:520
21830542338315,16sleep100-21swapper/1019:05:242
21831852336311,16sleep20-21swapper/219:06:538
21830322336311,16sleep110-21swapper/1119:05:083
21832302335312,15sleep30-21swapper/319:07:269
21829302335312,15sleep60-21swapper/619:03:4312
218361999225224,1cyclictest2402616-21nodev-device-ev23:59:5710
218364199220220,0cyclictest0-21swapper/1123:29:383
218361599220218,1cyclictest2380215-21nodev-device-ev23:29:389
2183615992130,212cyclictest2305572-21daemon-init21:38:539
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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