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2026-05-20 - 14:50
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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
Characteristics of all highest latencies:
System rack6slot5.osadl.org (updated Wed May 20, 2026 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2418399105385597,4927cyclictest23845-21kworker/0:208:58:060
241839981504305,3830cyclictest21002-21kworker/0:110:02:230
241839973673889,3436cyclictest21002-21kworker/0:109:59:290
241839973263770,3505cyclictest16508-21kworker/0:108:27:310
241839967243401,3308cyclictest13780-21kworker/0:007:19:410
241839966793461,3203cyclictest23845-21kworker/0:209:18:420
241839965863517,3054cyclictest15900-21kworker/0:209:39:210
241839965833433,3127cyclictest16508-21kworker/0:108:30:570
241839964453248,3181cyclictest28924-21kworker/0:211:46:580
241839964443585,2856cyclictest13780-21kworker/0:007:12:240
241839964263351,3052cyclictest23845-21kworker/0:208:48:100
241839964153334,3030cyclictest23845-21kworker/0:209:07:270
241839963593499,2809cyclictest28924-21kworker/0:211:44:530
241839961893292,2846cyclictest23845-21kworker/0:208:44:230
241839950572687,2366cyclictest13780-21kworker/0:007:21:150
241839925432475,45cyclictest15900-21kworker/0:209:41:190
241839922682157,97cyclictest23845-21kworker/0:209:20:390
238382774186,203sleep00-21swapper07:07:480
241839949044,88cyclictest25379-21ls09:55:040
241839946836,248cyclictest4894-21runrttasks07:35:290
241839946132,359cyclictest23845-21kworker/0:208:38:390
241839946014,431cyclictest22952-21munin-node12:21:060
241839945279,190cyclictest0-21swapper07:30:530
241839945022,358cyclictest5782-21ssh09:10:470
241839945019,370cyclictest21537-21gltestperf09:45:320
241839944956,265cyclictest11-21ksoftirqd/010:10:440
241839944694,0cyclictest0-21swapper10:36:570
241839944367,193cyclictest11-21ksoftirqd/011:27:040
241839943867,357cyclictest0-21swapper08:23:290
241839943784,353cyclictest0-21swapper09:26:430
241839943666,87cyclictest30848-21ssh12:37:240
241839943658,364cyclictest0-21swapper08:50:070
241839943514,246cyclictest18278-21ssh12:08:200
241839943373,186cyclictest3744-21ssh10:19:460
241839942868,301cyclictest0-21swapper10:08:280
241839942856,358cyclictest2898-21ssh11:32:380
241839942853,360cyclictest0-21swapper11:56:130
241839942648,94cyclictest13384-21strings10:40:580
241839942257,350cyclictest0-21swapper07:29:190
241839942247,88cyclictest9818-21ssh10:32:240
241839941956,303cyclictest11718-21ssh11:52:200
241839941857,302cyclictest0-21swapper07:56:130
241839941658,358cyclictest0-21swapper10:27:180
241839941554,302cyclictest0-21swapper12:02:140
241839941552,303cyclictest28238-21strings11:15:580
241839941059,338cyclictest345450irq/10-yenta10:22:030
241839940422,367cyclictest4864-21diskmemload12:15:090
241839940338,350cyclictest4894-21runrttasks12:14:080
241839940335,368cyclictest0-21swapper10:59:000
241839940222,357cyclictest30980-21ssh11:21:570
241839940038,302cyclictest26713-21ssh11:11:500
241839940035,350cyclictest27291-21ssh12:30:160
241839940033,367cyclictest7165-31updatedb.mlocat07:48:350
241839939956,283cyclictest5466-21ssh11:39:240
241839939933,350cyclictest25265-21latency_hist11:10:050
241839939922,362cyclictest26829-21ssh12:28:390
241839939733,350cyclictest16109-21ssh09:34:160
241839939231,351cyclictest17367-21awk10:50:400
241839938832,356cyclictest166232sleep010:49:460
241839938632,354cyclictest0-21swapper11:01:470
241839938532,353cyclictest11-21ksoftirqd/008:15:340
241839938437,220cyclictest0-21swapper09:00:510
241839937719,208cyclictest14963-21munin-node08:10:340
241839937635,280cyclictest11360-21munin-node08:00:150
24183993656,359cyclictest0-21swapper08:09:200
241839936433,89cyclictest5307-21runrttasks07:44:160
241839935526,153cyclictest4894-21runrttasks07:54:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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