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2026-05-22 - 08:41
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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 Fri May 22, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2411225846,8sleep40-21swapper/419:04:304
24631995453,0cyclictest0-21swapper/722:13:017
2411524232,7sleep50-21swapper/519:04:315
242802415,31sleep70-21swapper/719:06:497
628089400,33rtkit-daemon0-21swapper/619:03:036
24631993735,1cyclictest0-21swapper/721:53:227
24631993732,4cyclictest153315-21latency_hist20:12:337
24631993635,0cyclictest0-21swapper/721:02:587
24631993534,0cyclictest0-21swapper/723:48:257
24631993534,0cyclictest0-21swapper/722:36:537
24631993433,0cyclictest0-21swapper/722:55:217
24631993432,1cyclictest680177-21ssh23:58:457
24631993432,1cyclictest535818-21ssh22:59:467
24631993332,0cyclictest0-21swapper/723:45:307
24631993332,0cyclictest0-21swapper/723:07:227
24631993332,0cyclictest0-21swapper/722:05:547
24631993332,0cyclictest0-21swapper/721:59:067
24631993332,0cyclictest0-21swapper/721:59:067
24631993332,0cyclictest0-21swapper/700:04:497
24631993332,0cyclictest0-21swapper/700:04:497
24622993331,2cyclictest115192-21kworker/u16:0+events_unbound20:52:585
24631993227,4cyclictest706334-21latency_hist00:12:327
24631993130,0cyclictest0-21swapper/722:45:507
24631993130,0cyclictest0-21swapper/722:08:507
24631993130,0cyclictest0-21swapper/721:19:457
24631993130,0cyclictest0-21swapper/721:19:457
24631993130,0cyclictest0-21swapper/700:16:507
24631993129,1cyclictest596778-21sh23:25:497
24631993129,1cyclictest596778-21sh23:25:497
24631993029,0cyclictest0-21swapper/700:35:377
24631992928,0cyclictest0-21swapper/723:56:257
24631992928,0cyclictest0-21swapper/722:40:257
24631992928,0cyclictest0-21swapper/700:30:097
24631992827,0cyclictest0-21swapper/722:51:057
24631992827,0cyclictest0-21swapper/721:33:147
24631992827,0cyclictest0-21swapper/721:26:397
24631992827,0cyclictest0-21swapper/721:16:067
24631992726,0cyclictest0-21swapper/723:32:217
24631992726,0cyclictest0-21swapper/723:18:267
24631992726,0cyclictest0-21swapper/721:41:017
24631992726,0cyclictest0-21swapper/721:12:317
24622992725,2cyclictest537309-21kworker/u16:3+events_unbound23:18:015
24631992625,0cyclictest0-21swapper/723:16:177
24626992624,2cyclictest115192-21kworker/u16:0+events_unbound21:12:496
24631992524,0cyclictest0-21swapper/723:10:177
24626992524,1cyclictest39069-21kworker/u16:3+events_unbound19:37:466
2463199240,22cyclictest56058-21missed_timers19:18:087
24622992420,3cyclictest501478-21kworker/u16:1+flush-8:023:42:585
24631992322,0cyclictest0-21swapper/723:34:217
24631992322,0cyclictest0-21swapper/719:15:477
24631992221,0cyclictest0-21swapper/719:52:307
24631992120,0cyclictest0-21swapper/721:44:587
24631992120,0cyclictest0-21swapper/720:59:187
24614992119,2cyclictest4164394-21kworker/u16:4+events_unbound19:12:474
24614992118,2cyclictest501478-21kworker/u16:1+flush-8:000:12:374
24631992019,0cyclictest0-21swapper/723:41:537
24631991918,0cyclictest0-21swapper/721:47:367
24631991915,3cyclictest1234-21snmpd20:22:207
2463199190,17cyclictest0-21swapper/719:32:557
2461499190,1cyclictest0-21swapper/400:33:404
24631991814,3cyclictest124-21kswapd000:22:467
24626991815,2cyclictest2299872sleep620:49:356
24631991716,0cyclictest0-21swapper/722:29:217
24631991716,0cyclictest0-21swapper/720:52:317
24631991716,0cyclictest0-21swapper/719:11:197
24626991714,2cyclictest115192-21kworker/u16:0+flush-8:021:07:506
24622991713,3cyclictest105217-21kworker/u16:2+flush-8:019:52:585
24622991713,3cyclictest105217-21kworker/u16:2+flush-8:019:52:585
24614991714,2cyclictest110617-21cut19:47:504
24631991615,0cyclictest0-21swapper/722:22:237
24631991615,0cyclictest0-21swapper/721:30:457
24631991614,1cyclictest0-21swapper/720:05:337
24631991614,1cyclictest0-21swapper/719:29:507
24622991614,2cyclictest115192-21kworker/u16:0+events_unbound21:12:585
24622991613,2cyclictest67952-21kworker/u16:0+flush-8:019:28:355
24614991613,3cyclictest0-21swapper/423:26:394
24614991613,3cyclictest0-21swapper/423:26:394
2461499160,0cyclictest0-21swapper/422:05:184
24631991514,0cyclictest0-21swapper/722:26:267
24631991510,4cyclictest635-21systemd-journal19:22:337
2463199150,13cyclictest1448-21dockerd19:46:477
2462699150,14cyclictest0-21swapper/620:17:556
24622991511,3cyclictest630848-21ntpq23:37:575
24614991511,3cyclictest634409-21/usr/sbin/munin23:42:544
2461499150,1cyclictest0-21swapper/421:42:574
24631991413,0cyclictest0-21swapper/720:45:317
24631991413,0cyclictest0-21swapper/719:57:347
2463199140,1cyclictest0-21swapper/720:12:557
24626991413,1cyclictest0-21swapper/623:59:186
24626991413,1cyclictest0-21swapper/623:08:516
24626991413,1cyclictest0-21swapper/622:59:146
24626991410,3cyclictest416988-21cpuspeed_turbos22:12:446
2462699140,1cyclictest0-21swapper/623:35:406
2462699140,1cyclictest0-21swapper/621:28:076
2462699140,1cyclictest0-21swapper/600:12:526
2462699140,14cyclictest0-21swapper/623:44:016
2462699140,14cyclictest0-21swapper/621:50:216
2462699140,14cyclictest0-21swapper/621:22:456
2462699140,14cyclictest0-21swapper/619:52:536
2462699140,14cyclictest0-21swapper/619:52:536
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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