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2025-12-25 - 00:19
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack0slot7.osadl.org (updated Wed Dec 24, 2025 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31690539948021,55cyclictest0-21swapper/1119:10:583
3169042994749,59cyclictest0-21swapper/022:23:580
3169042994749,59cyclictest0-21swapper/022:23:580
31690439946836,28cyclictest203150irq/139-enp2s0-rx-020:21:481
31690449945423,1cyclictest4058964-21dd22:42:448
31690569944717,430cyclictest0-21swapper/1421:52:516
31690579944618,28cyclictest0-21swapper/1520:34:217
31690429944422,28cyclictest0-21swapper/022:58:190
31690459944111,27cyclictest0-21swapper/323:08:289
3169045994384,27cyclictest0-21swapper/323:42:589
3169042994345,28cyclictest0-21swapper/000:14:360
3169052994322,28cyclictest0-21swapper/1021:15:582
3169046994310,26cyclictest0-21swapper/422:56:2210
31690459942923,404cyclictest0-21swapper/322:45:599
3169052994280,27cyclictest0-21swapper/1022:33:582
31690459942522,403cyclictest0-21swapper/322:27:179
31690439942520,402cyclictest0-21swapper/122:16:281
316905499423420,2cyclictest4079628-21kworker/u64:7+events_unbound23:21:374
316905299423413,7cyclictest4057282-21kworker/10:1+events22:42:432
3169056994220,421cyclictest0-21swapper/1423:20:236
3169056994220,421cyclictest0-21swapper/1421:47:196
31690499942213,0cyclictest0-21swapper/722:29:5413
316904899422420,2cyclictest3790680-21kworker/6:1+events23:29:2212
31690459942217,402cyclictest0-21swapper/323:02:219
31690569942118,403cyclictest0-21swapper/1400:35:256
31690479942121,396cyclictest0-21swapper/522:32:5911
31690439942015,405cyclictest0-21swapper/120:46:231
31690429942019,398cyclictest0-21swapper/023:36:210
31690479941915,404cyclictest0-21swapper/519:48:4711
3169046994190,0cyclictest0-21swapper/419:11:4910
31690479941814,404cyclictest0-21swapper/523:59:2211
31690479941814,404cyclictest0-21swapper/500:06:2211
316904599417415,1cyclictest3933946-21kworker/3:1+pm22:32:109
31690569941614,402cyclictest0-21swapper/1423:09:526
316904899416415,1cyclictest3579227-21kworker/6:3+events20:56:2012
31690459941610,402cyclictest0-21swapper/300:09:479
316904899415415,0cyclictest52278-21kworker/6:0+events23:54:5012
3169047994158,407cyclictest0-21swapper/520:17:2511
316904699415415,0cyclictest0-21swapper/423:21:3710
3169047994149,405cyclictest0-21swapper/521:50:4211
3169042994149,405cyclictest0-21swapper/023:33:210
3169057994130,413cyclictest0-21swapper/1521:56:597
316905499413412,1cyclictest0-21swapper/1200:27:224
3169052994128,400cyclictest0-21swapper/1019:22:582
3169052994128,400cyclictest0-21swapper/1019:22:582
31690519941219,0cyclictest0-21swapper/920:24:2115
3169050994120,404cyclictest0-21swapper/822:29:5414
3169044994120,404cyclictest0-21swapper/222:29:538
316905799411408,1cyclictest0-21swapper/1522:42:447
3169054994112,408cyclictest0-21swapper/1200:30:464
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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