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2026-03-10 - 08:29
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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 Tue Mar 10, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31421850,5sleep31498499cyclictest20:33:433
1598121630,5sleep01496899cyclictest22:38:460
3184921600,3sleep21498099cyclictest23:59:182
1068911240,7ptp4l401ktimersoftd/319:56:493
42372710,2sleep10-21swapper/121:48:451
106891690,1ptp4l401ktimersoftd/322:32:093
40852650,5sleep01496899cyclictest20:38:580
138902650,2sleep30-21swapper/322:36:323
147132594,10sleep20-21swapper/219:56:252
206712580,1sleep30-21swapper/323:48:513
145272580,4sleep341-21ksoftirqd/300:14:293
106891580,1ptp4l401ktimersoftd/322:48:133
106891570,1ptp4l401ktimersoftd/323:19:453
317992560,2sleep10-21swapper/123:59:131
106891560,1ptp4l401ktimersoftd/322:06:073
106891550,1ptp4l401ktimersoftd/300:31:123
257382540,2sleep025736-21sh23:20:420
14975995443,5cyclictest25-21ksoftirqd/100:33:451
248902530,2sleep20-21swapper/221:23:492
248902530,2sleep20-21swapper/221:23:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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