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2024-11-06 - 18:58
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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 rackdslot1.osadl.org (updated Wed Nov 06, 2024 12:46:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1166911890,16ptp4l0-21swapper/007:08:460
1166911690,48ptp4l0-21swapper/107:05:241
1166911240,16ptp4l0-21swapper/207:05:032
28253998678,5cyclictest41-21ksoftirqd/307:25:113
28253998476,5cyclictest41-21ksoftirqd/311:45:113
28253998377,4cyclictest41-21ksoftirqd/307:40:103
2790028362,10sleep30-21swapper/307:09:113
28253998072,5cyclictest41-21ksoftirqd/307:20:103
28253998072,4cyclictest41-21ksoftirqd/307:10:113
28253997870,5cyclictest41-21ksoftirqd/308:25:103
28253997869,5cyclictest41-21ksoftirqd/308:20:103
84262750,4sleep0101ktimersoftd/011:05:190
28253997566,5cyclictest41-21ksoftirqd/311:55:103
28251997164,4cyclictest25-21ksoftirqd/112:25:111
28251997164,4cyclictest25-21ksoftirqd/108:30:061
28253997062,4cyclictest41-21ksoftirqd/309:00:123
28251997063,4cyclictest25-21ksoftirqd/111:20:121
55398680,2rtkit-daemon0-21swapper/007:25:310
28253996834,5cyclictest41-21ksoftirqd/311:15:003
116691680,5ptp4l25719-21apt-get10:35:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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