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2026-04-11 - 20:53
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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 Sat Apr 11, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
937821820,7sleep20-21swapper/208:11:472
746921680,4sleep01039099cyclictest09:16:270
106891990,3ptp4l401ktimersoftd/308:15:173
106891810,2ptp4l401ktimersoftd/313:01:323
81712750,2sleep30-21swapper/312:31:543
106891710,1ptp4l401ktimersoftd/310:45:553
219832660,5sleep321989-21needreboot11:06:513
219832660,5sleep321989-21needreboot11:06:513
272942640,1sleep00-21swapper/010:40:020
321682620,1sleep10-21swapper/110:06:461
33472610,2sleep10-21swapper/113:01:271
270992600,1sleep10-21swapper/110:39:431
106891580,1ptp4l401ktimersoftd/312:26:073
106891570,1ptp4l401ktimersoftd/313:38:193
106891570,1ptp4l401ktimersoftd/312:37:113
106891570,1ptp4l401ktimersoftd/312:15:173
106891570,1ptp4l401ktimersoftd/311:43:503
106891570,1ptp4l401ktimersoftd/311:33:473
100562574,10sleep10-21swapper/108:13:291
1039099552,8cyclictest23831-21gltestperf08:41:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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