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2026-05-20 - 16:37
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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 10 highest latencies:
System rackbslot6.osadl.org (updated Wed May 20, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1646524610,5sleep316470-21unixbench_multi08:33:323
161621770,4sleep31704099cyclictest13:13:253
1526221700,3sleep10-21swapper/108:33:181
106891710,1ptp4l401ktimersoftd/311:49:303
106891710,1ptp4l401ktimersoftd/310:52:493
167952655,10sleep00-21swapper/008:36:330
265562630,2sleep30-21swapper/312:33:233
187482590,5sleep118727-21cron11:53:061
17019995918,10cyclictest9-21ksoftirqd/013:24:420
106891580,1ptp4l401ktimersoftd/312:43:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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