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2026-04-10 - 18:22
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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 Apr 10, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1102521810,5sleep02948799cyclictest11:08:470
1477921790,3sleep02948799cyclictest09:56:200
1068911760,5ptp4l401ktimersoftd/308:11:243
167421610,6sleep12949399cyclictest11:31:241
2016721460,4sleep22949999cyclictest11:17:162
138042730,2sleep10-21swapper/113:21:411
223242690,2sleep20-21swapper/209:06:082
134962620,5sleep233-21ksoftirqd/211:44:102
281142610,3sleep30-21swapper/311:58:523
319542590,5sleep031957-21latency_hist08:20:530
240502590,2sleep20-21swapper/211:21:172
2950699589,14cyclictest14176-21/usr/sbin/munin11:11:223
29506995810,14cyclictest5146-21grep11:36:073
274262560,1sleep00-21swapper/011:25:570
263172560,1sleep30-21swapper/313:36:003
29506995410,19cyclictest19252-21ssh11:16:193
293732544,37sleep10-21swapper/108:15:411
291542503,34sleep20-21swapper/208:12:522
2950699497,18cyclictest11446-21ssh12:46:263
29487994939,4cyclictest9-21ksoftirqd/011:56:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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