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2025-12-10 - 09:38
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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 Dec 10, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1773912070,5ptp4l401ktimersoftd/320:27:073
650621670,7sleep20-21swapper/220:22:262
3109021510,4sleep2868699cyclictest00:07:312
108182700,2sleep10-21swapper/122:35:561
8681996150,5cyclictest25-21ksoftirqd/122:37:281
134462610,2sleep00-21swapper/000:56:550
78852600,2sleep00-21swapper/001:24:130
210742590,3sleep10-21swapper/101:03:231
8676995620,6cyclictest9-21ksoftirqd/001:38:100
8676995617,7cyclictest9-21ksoftirqd/022:53:010
8676995615,7cyclictest9-21ksoftirqd/023:08:300
275762560,5sleep3869399cyclictest23:27:453
177391560,1ptp4l401ktimersoftd/300:17:433
93122540,2sleep30-21swapper/301:27:093
8676995422,7cyclictest9-21ksoftirqd/000:22:410
8676995422,7cyclictest9-21ksoftirqd/000:22:410
8693995321,8cyclictest41-21ksoftirqd/300:56:553
8676995321,9cyclictest9-21ksoftirqd/000:02:330
303972530,3sleep233-21ksoftirqd/201:12:552
869399526,9cyclictest41-21ksoftirqd/323:42:483
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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