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2025-06-24 - 18:05
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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 Tue Jun 24, 2025 00:46:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35103942368360,5sleep140-21swapper/1419:07:096
35085382368360,5sleep20-21swapper/219:05:218
35104502358311,37sleep80-21swapper/819:07:5214
35105052357316,32sleep90-21swapper/919:08:4115
35070342355311,15sleep60-21swapper/619:05:0812
35070332355313,14sleep50-21swapper/519:05:0711
35094592354310,14sleep110-21swapper/1119:05:303
35105682353344,6sleep120-21swapper/1219:09:324
35101672351343,5sleep00-21swapper/019:05:350
35105602348325,14sleep40-21swapper/419:09:2410
35104622348327,14sleep30-21swapper/319:08:039
35104942345321,15sleep150-21swapper/1519:08:317
35105742344325,12sleep10-21swapper/119:09:371
35104262344321,15sleep70-21swapper/719:07:3413
35105292339317,14sleep100-21swapper/1019:08:582
35071342337315,14sleep130-21swapper/1319:05:165
351107199281281,0cyclictest0-21swapper/1121:35:193
351104399278277,1cyclictest3638579-21nodev-device-ev21:35:199
351104199255255,0cyclictest0-21swapper/222:15:208
351107199229228,1cyclictest3668537-21nodev-device-ev22:10:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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