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2024-07-16 - 08:13
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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 rack5slot3.osadl.org (updated Mon Jul 15, 2024 12:50:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2047621730,2sleep70-21swapper/707:05:157
1955829242,44sleep10-21swapper/107:05:011
2201828348,30sleep30-21swapper/307:08:013
2114528348,30sleep40-21swapper/407:05:374
2213528247,30sleep00-21swapper/007:09:420
2114728047,29sleep60-21swapper/607:05:386
2212827945,30sleep20-21swapper/207:09:352
2114627843,30sleep50-21swapper/507:05:375
119262550,1sleep511919-21apt-config07:45:005
48512540,0sleep00-21swapper/008:25:150
238012490,0sleep30-21swapper/311:40:143
211622480,0sleep40-21swapper/410:05:444
279922450,0sleep20-21swapper/209:23:462
157582440,0sleep30-21swapper/312:38:513
148502310,0sleep00-21swapper/010:03:230
22587991812,3cyclictest0-21swapper/008:15:000
22594991716,1cyclictest721ktimersoftd/711:10:307
22594991615,1cyclictest721ktimersoftd/708:05:277
22594991615,1cyclictest29829-21ssh11:43:207
22592991615,1cyclictest7121-21ssh09:44:455
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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