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2025-12-19 - 18:50
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Fri Dec 19, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1190221480,7sleep20-21swapper/207:09:072
1068911010,4ptp4l401ktimersoftd/307:11:273
165482670,4sleep21354399cyclictest10:39:212
193402650,4sleep319341-21grep09:39:083
151012580,2sleep30-21swapper/310:39:063
106891550,1ptp4l401ktimersoftd/307:15:173
325602540,1sleep00-21swapper/007:49:180
106891540,1ptp4l401ktimersoftd/310:01:063
106891480,2ptp4l11055-21kworker/3:009:37:073
106891390,1ptp4l401ktimersoftd/308:29:073
106891380,1ptp4l401ktimersoftd/309:19:083
13543993729,4cyclictest33-21ksoftirqd/211:19:062
106891370,1ptp4l401ktimersoftd/312:04:203
106891370,1ptp4l401ktimersoftd/308:10:383
13543993629,4cyclictest33-21ksoftirqd/207:34:002
106891360,2ptp4l11055-21kworker/3:009:58:533
106891360,0ptp4l401ktimersoftd/312:19:173
106891350,2ptp4l11055-21kworker/3:012:35:293
106891350,1ptp4l401ktimersoftd/308:44:183
106891350,0ptp4l401ktimersoftd/307:53:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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