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2024-07-14 - 01:16
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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 rackeslot8.osadl.org (updated Sat Jul 13, 2024 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28967272420,1chrt0-21swapper/012:05:160
28527652310,1sleep30-21swapper/311:34:333
2497558992721,5cyclictest2788669-21munin-plugin-st10:50:000
2497558992715,4cyclictest0-21swapper/011:30:010
2497562992623,2cyclictest0-21swapper/112:20:011
2497558992620,5cyclictest759-21systemctl11:40:010
2497558992615,2cyclictest471rcuog/212:05:000
2497562992522,2cyclictest543-21gdbus08:42:141
2497568992421,1cyclictest0-21swapper/310:25:513
2497562992422,1cyclictest0-21swapper/109:20:001
2497558992418,5cyclictest771-21gmain08:41:450
2497562992319,3cyclictest2566189-21systemd-run08:05:011
2497558992318,4cyclictest2938220-21true12:35:000
2497558992312,2cyclictest191rcu_preempt12:20:010
2497564992219,2cyclictest2737849-21gpgconf10:11:342
2497564992218,2cyclictest0-21swapper/212:00:002
2497562992218,3cyclictest2584298-21idleruntime-cro08:20:001
249755899225,3cyclictest0-21swapper/009:13:360
2497558992214,7cyclictest2931103-21grep12:30:010
2497564992118,2cyclictest2554037-21idleruntime-cro07:55:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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