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2026-09-03 - 01:57
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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 100 highest latencies:
System rack0slot2.osadl.org (updated Thu Sep 03, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
411025827146,7sleep50-21swapper/519:08:095
863232420,0sleep786325-21date20:34:317
4110661994135,5cyclictest8317-21latency_hist19:54:307
4110658994137,3cyclictest494776-21kworker/u16:3+flush-8:000:24:306
41094052405,30sleep70-21swapper/719:05:067
4110651993835,3cyclictest178769-21kworker/u16:2+events_unbound21:44:304
4110651993330,3cyclictest297844-21kworker/u16:0+flush-8:022:09:594
4110651993330,3cyclictest297844-21kworker/u16:0+flush-8:022:09:594
411019223221,8sleep40-21swapper/419:07:114
4110651993027,2cyclictest479716-21kworker/u16:1+flush-8:000:24:514
411007123018,9sleep60-21swapper/619:05:296
4110651992927,2cyclictest163796-21kworker/u16:1+flush-8:021:49:304
4110651992926,2cyclictest322193-21kworker/u16:2+flush-8:022:24:404
4110661992823,4cyclictest324637-21latency_hist22:19:307
4110661992822,5cyclictest604702-21latency_hist00:14:307
4110658992825,2cyclictest4153162-21kworker/u16:3+flush-8:019:34:476
4110651992824,3cyclictest494776-21kworker/u16:3+flush-8:000:34:504
411066199260,24cyclictest144330-21latency_hist21:04:307
4110658992624,2cyclictest494776-21kworker/u16:3+events_unbound23:39:446
4110651992624,2cyclictest371471-21kworker/u16:2+flush-8:023:18:154
4110651992623,2cyclictest385772-21kworker/u16:0+flush-8:022:49:454
4110661992415,8cyclictest0-21swapper/722:09:587
4110661992415,8cyclictest0-21swapper/722:09:587
4110651992423,1cyclictest248556-21kworker/u16:3+events_unbound21:51:204
4110651992423,1cyclictest154014-21kworker/u16:0+events_unbound21:09:474
4110651992422,2cyclictest494776-21kworker/u16:3+events_unbound00:03:564
4110651992422,2cyclictest397843-21kworker/u16:3+flush-8:023:05:014
4110661992322,0cyclictest0-21swapper/700:29:447
4110661992322,0cyclictest0-21swapper/700:04:477
4110661992318,4cyclictest397566-21latency_hist22:49:307
4110651992321,2cyclictest479716-21kworker/u16:1+flush-8:000:10:004
4110651992320,2cyclictest163796-21kworker/u16:1+flush-8:022:34:314
4110651992220,2cyclictest446696-21kworker/u16:0+flush-8:023:14:304
4110651992220,2cyclictest300307-21kworker/u16:4+flush-8:022:33:124
4110661992019,0cyclictest0-21swapper/722:57:047
4110661992019,0cyclictest0-21swapper/721:21:077
4110651992018,2cyclictest494776-21kworker/u16:3+flush-8:000:14:554
4110651992018,2cyclictest494776-21kworker/u16:3+flush-8:000:14:554
4110661991918,0cyclictest0-21swapper/723:18:047
4110661991914,4cyclictest665544-21latency_hist00:39:307
411066199190,17cyclictest163068-21sh21:09:537
4110661991817,0cyclictest0-21swapper/700:27:437
4110661991816,1cyclictest567336-21ssh23:58:047
411066199180,17cyclictest1277-21snmpd20:05:107
411066199180,17cyclictest1277-21snmpd20:05:107
4110661991716,0cyclictest0-21swapper/723:53:117
4110661991716,0cyclictest0-21swapper/723:08:037
4110661991716,0cyclictest0-21swapper/723:03:237
4110661991716,0cyclictest0-21swapper/722:26:117
4110661991716,0cyclictest0-21swapper/721:31:247
4110661991716,0cyclictest0-21swapper/721:31:247
4110661991716,0cyclictest0-21swapper/720:39:487
4110661991716,0cyclictest0-21swapper/700:01:207
4110661991714,2cyclictest0-21swapper/722:49:307
4110661991710,5cyclictest648-21systemd-journal20:39:307
411066199170,16cyclictest0-21swapper/721:39:547
4110658991715,2cyclictest4110415-21kworker/u16:1+events_unbound19:14:326
4110658991714,3cyclictest371471-21kworker/u16:2+flush-8:023:04:306
411065699175,9cyclictest354139-21kthreadcore22:29:485
411066199168,7cyclictest6275-21gmain20:14:557
4110661991615,0cyclictest0-21swapper/723:29:587
4110661991615,0cyclictest0-21swapper/723:13:007
4110661991615,0cyclictest0-21swapper/721:38:327
4110661991615,0cyclictest0-21swapper/721:25:367
4110661991615,0cyclictest0-21swapper/721:05:427
4110661991615,0cyclictest0-21swapper/720:51:407
4110661991611,4cyclictest129570-21kthreadcore20:54:477
411066199160,14cyclictest0-21swapper/700:14:547
411066199160,14cyclictest0-21swapper/700:14:547
4110658991614,2cyclictest580353-21kworker/u16:5+events_unbound00:29:306
4110658991614,2cyclictest479716-21kworker/u16:1+events_unbound00:29:586
411065699160,16cyclictest0-21swapper/520:34:555
4110651991614,2cyclictest4110415-21kworker/u16:1+events_unbound19:49:454
4110651991614,2cyclictest300307-21kworker/u16:4+flush-8:022:23:394
4110651991614,2cyclictest163796-21kworker/u16:1+flush-8:022:41:034
4110651991614,2cyclictest163796-21kworker/u16:1+flush-8:021:36:124
4110651991614,2cyclictest154014-21kworker/u16:0+flush-8:021:25:024
4110661991514,0cyclictest0-21swapper/721:56:397
4110661991514,0cyclictest0-21swapper/721:49:197
4110661991514,0cyclictest0-21swapper/700:21:187
4110661991513,1cyclictest0-21swapper/722:44:127
411065699153,7cyclictest252784-21hddtemp_smartct21:49:505
4110651991514,1cyclictest0-21swapper/423:44:584
411065199150,15cyclictest0-21swapper/400:19:484
411066199144,9cyclictest1206-21tuned22:01:197
4110661991413,0cyclictest0-21swapper/722:34:257
4110661991412,1cyclictest0-21swapper/719:14:537
4110658991413,1cyclictest0-21swapper/622:51:326
4110658991413,1cyclictest0-21swapper/621:12:326
4110658991413,1cyclictest0-21swapper/620:35:006
411065899140,1cyclictest0-21swapper/622:15:456
411065899140,14cyclictest0-21swapper/623:30:476
411065899140,14cyclictest0-21swapper/622:33:056
411065899140,14cyclictest0-21swapper/621:54:476
411065899140,14cyclictest0-21swapper/600:35:256
4110656991413,1cyclictest0-21swapper/523:54:555
4110656991413,1cyclictest0-21swapper/522:35:095
411065699140,14cyclictest0-21swapper/522:44:085
4110651991413,1cyclictest0-21swapper/423:43:234
4110651991413,1cyclictest0-21swapper/420:54:524
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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