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2024-04-19 - 00:25
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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
Characteristics of the 20 highest latencies:
System rackdslot0.osadl.org (updated Thu Apr 18, 2024 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20773994650,0cyclictest0-21swapper/108:06:021
2077399463450,11cyclictest17806-21kworker/1:012:22:021
2077399461450,11cyclictest17806-21kworker/1:010:14:021
2077399458456,2cyclictest0-21swapper/108:33:021
2077399450437,11cyclictest0-21swapper/109:10:021
2077399442440,1cyclictest0-21swapper/110:46:011
2077399436435,0cyclictest0-21swapper/107:34:011
2077399435432,0cyclictest0-21swapper/111:18:021
2076999425423,1cyclictest1758-21kworker/0:208:05:020
2077899408406,1cyclictest0-21swapper/208:05:022
2077899319315,2cyclictest0-21swapper/212:22:022
2077899316315,0cyclictest0-21swapper/210:14:022
2077899314301,13cyclictest12657-21kworker/2:207:29:022
2077899310304,5cyclictest20271-21gnome-shell12:37:592
2077899308306,2cyclictest0-21swapper/208:33:022
2077899308302,5cyclictest20271-21gnome-shell07:54:592
2077899307300,6cyclictest20271-21gnome-shell07:46:592
2077899306300,5cyclictest20271-21gnome-shell10:34:592
2077899304302,0cyclictest0-21swapper/209:10:022
2077899301295,5cyclictest20271-21gnome-shell10:05:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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