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2026-04-21 - 23:05
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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 50 highest latencies:
System rackbslot6.osadl.org (updated Tue Apr 21, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911200,8ptp4l3341-21kworker/3:208:18:373
121832780,2sleep30-21swapper/313:48:153
121832780,2sleep30-21swapper/313:48:153
81572724,10sleep00-21swapper/008:20:590
106891700,1ptp4l401ktimersoftd/311:48:433
106891690,1ptp4l401ktimersoftd/312:25:123
106891690,1ptp4l401ktimersoftd/311:06:543
79952674,10sleep20-21swapper/208:18:512
87072640,2sleep38709-21rm12:39:173
91032630,1sleep20-21swapper/213:46:412
91032630,1sleep20-21swapper/213:46:412
70632630,3sleep20-21swapper/209:22:272
218682610,2sleep00-21swapper/008:47:170
69372600,2sleep30-21swapper/311:32:203
124782590,3sleep10-21swapper/112:42:321
106891590,1ptp4l401ktimersoftd/311:26:223
45112580,2sleep20-21swapper/209:17:222
303162580,4sleep1834399cyclictest11:56:031
197182580,3sleep219719-21irqrtprio11:12:202
106891570,1ptp4l401ktimersoftd/313:23:053
227352560,2sleep20-21swapper/213:27:182
8348995122,12cyclictest33-21ksoftirqd/213:12:162
106891510,1ptp4l401ktimersoftd/312:18:023
8338994942,4cyclictest9-21ksoftirqd/013:22:170
106891480,1ptp4l401ktimersoftd/313:00:593
78922470,2sleep00-21swapper/011:00:370
8348994610,6cyclictest33-21ksoftirqd/208:29:542
8348994610,6cyclictest33-21ksoftirqd/208:29:542
834899459,5cyclictest33-21ksoftirqd/209:12:542
834899453,7cyclictest321ktimersoftd/211:52:272
8348994510,5cyclictest33-21ksoftirqd/209:33:502
106891450,0ptp4l401ktimersoftd/309:53:363
8348994410,5cyclictest33-21ksoftirqd/208:40:262
834899438,5cyclictest33-21ksoftirqd/208:21:592
834899438,5cyclictest33-21ksoftirqd/208:21:592
8348994320,10cyclictest33-21ksoftirqd/213:01:242
1452914314,8phc2sys41-21ksoftirqd/312:47:183
106891420,7ptp4l401ktimersoftd/313:03:253
106891420,1ptp4l401ktimersoftd/312:44:033
834899414,35cyclictest311rcuc/211:32:032
8348994118,8cyclictest33-21ksoftirqd/213:37:052
8348994118,8cyclictest33-21ksoftirqd/209:27:192
106891410,1ptp4l401ktimersoftd/310:52:253
8348994021,10cyclictest33-21ksoftirqd/210:32:222
8348994018,9cyclictest33-21ksoftirqd/212:52:162
8348994017,9cyclictest33-21ksoftirqd/212:02:322
8348994017,9cyclictest33-21ksoftirqd/212:02:322
8338994032,4cyclictest9-21ksoftirqd/013:32:170
834899393,5cyclictest33-21ksoftirqd/211:58:282
106891390,5ptp4l401ktimersoftd/312:02:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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