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2025-12-10 - 06:11
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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 the 100 highest latencies:
System rackdslot0.osadl.org (updated Wed Dec 10, 2025 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6598992928,0cyclictest0-21swapper/222:20:152
6598992311,11cyclictest1419-21kworker/2:221:40:002
659699230,18cyclictest0-21swapper/119:25:371
659699230,18cyclictest0-21swapper/119:15:161
659599230,5cyclictest0-21swapper/022:44:300
6598992113,4cyclictest0-21swapper/221:48:422
659899210,0cyclictest0-21swapper/221:30:142
659599213,17cyclictest9-21ksoftirqd/021:50:280
659899204,9cyclictest0-21swapper/221:50:202
659899204,11cyclictest6244-21munin-run23:55:002
659899203,16cyclictest28-21ksoftirqd/222:02:002
6596992019,1cyclictest21-21ksoftirqd/120:50:311
6596992019,1cyclictest21-21ksoftirqd/120:50:311
6598991917,1cyclictest0-21swapper/220:32:332
6598991916,2cyclictest5160-21processes20:00:232
6598991916,2cyclictest4534-21H212:26:332
659899191,12cyclictest0-21swapper/221:05:192
659899190,17cyclictest4538-21H212:26:332
659699192,2cyclictest23651-21chrt21:34:031
659699192,16cyclictest28830-21tr20:45:161
6596991917,1cyclictest0-21swapper/122:03:301
6596991915,3cyclictest2707-21lxd00:36:581
659699191,17cyclictest18620-21sort21:25:021
659699190,2cyclictest4538-21H212:26:331
659699190,18cyclictest0-21swapper/123:20:511
659699190,16cyclictest4526-21H212:26:331
659599190,3cyclictest4526-21H212:26:330
659599190,2cyclictest4593-21H212:26:330
659599190,2cyclictest4526-21H212:26:330
659599190,18cyclictest0-21swapper/023:20:150
659599190,18cyclictest0-21swapper/022:50:160
659599190,16cyclictest4593-21H212:26:330
659599190,16cyclictest4536-21H212:26:330
659599190,16cyclictest4532-21H212:26:330
659599190,16cyclictest4532-21H212:26:330
659899182,2cyclictest4538-21H212:26:332
659899182,1cyclictest12380-21vmstat19:15:242
659899182,15cyclictest0-21swapper/221:00:022
6598991815,2cyclictest32646-21nfsd420:50:222
6598991815,2cyclictest32646-21nfsd420:50:212
6598991814,3cyclictest4593-21H212:26:332
6598991814,3cyclictest4532-21H212:26:332
6598991814,3cyclictest4526-21H212:26:332
6598991813,4cyclictest29357-21cat21:44:552
659899181,16cyclictest24576-21cut00:25:182
659899181,16cyclictest0-21swapper/222:40:182
659899180,3cyclictest26477-21grep22:35:182
659899180,2cyclictest4534-21H212:26:332
659899180,2cyclictest4526-21H212:26:332
659899180,17cyclictest4538-21H212:26:332
659899180,16cyclictest4536-21H212:26:332
659899180,16cyclictest4528-21H212:26:332
659899180,16cyclictest17372-21ps19:25:202
659899180,15cyclictest4526-21H212:26:332
659699182,15cyclictest19775-21chrt22:22:321
6596991817,1cyclictest21-21ksoftirqd/121:52:111
6596991817,1cyclictest21-21ksoftirqd/100:31:131
6596991816,1cyclictest21-21ksoftirqd/122:56:541
6596991814,3cyclictest4530-21H212:26:331
659699180,2cyclictest4523-21H212:26:331
659699180,2cyclictest4523-21H212:26:331
659699180,2cyclictest4523-21H212:26:331
659699180,1cyclictest0-21swapper/100:15:151
659699180,17cyclictest893-21systemd-logind23:03:071
659699180,17cyclictest4536-21H212:26:331
659699180,17cyclictest21037-21tr00:20:161
659699180,16cyclictest4526-21H212:26:331
659699180,16cyclictest4523-21H212:26:331
659599182,2cyclictest28219-21nfsd423:35:200
6595991816,1cyclictest9-21ksoftirqd/021:38:420
6595991814,3cyclictest4581-21H212:26:330
6595991814,3cyclictest4530-21H212:26:330
6595991814,3cyclictest0-21swapper/020:56:260
6595991813,2cyclictest4581-21H212:26:330
6595991813,2cyclictest4528-21H212:26:330
659599181,16cyclictest4536-21H212:26:330
659599181,16cyclictest22764-21nfsd423:25:190
659599180,3cyclictest0-21swapper/000:10:220
659599180,17cyclictest4538-21H212:26:330
659599180,17cyclictest4534-21H212:26:330
659599180,15cyclictest4526-21H212:26:330
659599180,15cyclictest4523-21H212:26:330
6598991715,1cyclictest0-21swapper/219:40:022
6598991714,2cyclictest4593-21H212:26:332
6598991714,2cyclictest4593-21H212:26:332
6598991714,2cyclictest4593-21H212:26:332
6598991714,2cyclictest4581-21H212:26:332
6598991714,2cyclictest4581-21H212:26:332
6598991714,2cyclictest4536-21H212:26:332
6598991714,2cyclictest4530-21H212:26:332
6598991714,2cyclictest4530-21H212:26:332
6598991714,2cyclictest4528-21H212:26:332
6598991714,2cyclictest4528-21H212:26:332
6598991714,2cyclictest1783-21nfsd419:55:172
659899170,8cyclictest0-21swapper/200:35:222
659899170,2cyclictest4536-21H212:26:332
659899170,2cyclictest4523-21H212:26:332
659899170,2cyclictest29924-21grep20:45:192
659899170,2cyclictest23232-21cron00:25:002
659899170,2cyclictest0-21swapper/220:20:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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