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2025-12-26 - 23:55
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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 26, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122721800,4sleep31811999cyclictest10:18:063
142721510,3sleep01810599cyclictest10:54:280
3213021430,4sleep11810999cyclictest11:28:581
1068911160,8ptp4l23493-21kworker/3:007:14:363
110232940,2sleep10-21swapper/111:43:031
166232827,15sleep20-21swapper/207:13:042
97622670,4sleep125-21ksoftirqd/108:03:111
84462650,2sleep30-21swapper/308:02:573
122102600,1sleep30-21swapper/312:19:383
317972590,1sleep10-21swapper/107:43:041
106891590,1ptp4l401ktimersoftd/311:45:103
60442580,3sleep00-21swapper/011:37:480
46132550,2sleep20-21swapper/209:45:212
18119995546,5cyclictest41-21ksoftirqd/311:48:043
1811999530,4cyclictest25673-21ssh10:45:503
317172500,23sleep31811999cyclictest10:16:053
3132500,2sleep20-21swapper/212:07:492
1654724520,13sleep125-21ksoftirqd/107:13:031
106891400,1ptp4l401ktimersoftd/310:27:433
106891400,1ptp4l401ktimersoftd/308:53:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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