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2024-04-26 - 15:39
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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 Fri Apr 26, 2024 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847999440437,1cyclictest0-21swapper/220:22:022
2847799376374,1cyclictest0-21swapper/019:50:020
2847799376374,1cyclictest0-21swapper/019:50:010
2847799359349,1cyclictest0-21swapper/020:49:020
2847799353352,1cyclictest14974-21kworker/0:221:26:020
2847899324311,11cyclictest0-21swapper/121:53:021
28477993100,309cyclictest0-21swapper/019:49:590
2847999306300,5cyclictest20271-21gnome-shell20:45:592
2847899305299,5cyclictest20271-21gnome-shell21:34:591
2847999303298,4cyclictest0-21swapper/220:11:592
2847899303298,4cyclictest20271-21gnome-shell21:14:591
2847899302291,11cyclictest0-21swapper/100:01:021
2847899301295,5cyclictest20271-21gnome-shell23:39:591
2847899300295,4cyclictest20271-21gnome-shell00:38:581
2847899300295,4cyclictest20271-21gnome-shell00:16:581
2847999299296,2cyclictest20271-21gnome-shell23:18:002
2847999299296,2cyclictest20271-21gnome-shell23:17:592
2847999298298,0cyclictest0-21swapper/221:01:022
2847999298293,4cyclictest20271-21gnome-shell22:07:592
2847899298293,4cyclictest20271-21gnome-shell20:09:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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