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2026-01-07 - 19:25
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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 Wed Jan 07, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911050,7ptp4l12006-21kworker/3:207:19:243
85062720,4sleep31286399cyclictest09:25:403
12863996635,3cyclictest41-21ksoftirqd/312:14:573
129332640,3sleep20-21swapper/208:29:422
280142590,5sleep341-21ksoftirqd/311:54:503
204502590,2sleep30-21swapper/312:53:363
12863995422,8cyclictest41-21ksoftirqd/310:34:403
106891540,1ptp4l401ktimersoftd/312:05:273
12863995337,3cyclictest41-21ksoftirqd/310:09:423
12863995321,6cyclictest41-21ksoftirqd/309:29:513
12863995321,6cyclictest41-21ksoftirqd/309:29:513
131442520,2sleep00-21swapper/009:30:020
131442520,2sleep00-21swapper/009:30:020
126512524,37sleep00-21swapper/007:23:130
12863995123,8cyclictest41-21ksoftirqd/311:07:403
12863995121,5cyclictest41-21ksoftirqd/308:44:443
12863995116,5cyclictest41-21ksoftirqd/311:31:353
12863995025,4cyclictest41-21ksoftirqd/310:14:523
12863994924,4cyclictest41-21ksoftirqd/309:59:333
12863994921,8cyclictest41-21ksoftirqd/311:20:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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