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2026-07-07 - 05:39
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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 Tue Jul 07, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26897572550,0sleep72689758-21rm00:02:527
1995687995448,5cyclictest2266169-21latency_hist21:19:597
199489025218,29sleep70-21swapper/719:07:257
199457225040,7sleep50-21swapper/519:05:465
199462224736,8sleep40-21swapper/419:06:014
199465423625,8sleep60-21swapper/619:06:126
1995687993332,0cyclictest0-21swapper/720:45:277
1995687992928,0cyclictest0-21swapper/722:00:147
1995687992923,5cyclictest2768343-21latency_hist00:34:597
1995687992823,4cyclictest648-21systemd-journal19:49:597
1995684992826,2cyclictest2626681-21kworker/u16:3+events_unbound23:50:126
1995682992826,2cyclictest2704197-21kworker/u16:3+events_unbound00:13:195
1995682992826,2cyclictest2704197-21kworker/u16:3+events_unbound00:13:195
1995687992725,1cyclictest2495595-21ssh22:46:357
1995682992725,2cyclictest2702698-21kworker/u16:2+events_unbound00:08:325
1995677992725,2cyclictest2678284-21kworker/u16:1+events_unbound00:33:074
1995677992725,2cyclictest2626681-21kworker/u16:3+events_unbound23:59:274
1995677992725,2cyclictest2317694-21kworker/u16:3+events_unbound22:25:524
1995687992624,1cyclictest2291698-21ssh21:29:397
1995687992624,1cyclictest0-21swapper/722:23:477
1995684992624,2cyclictest2197332-21kworker/u16:1+events_unbound21:45:136
1995684992622,3cyclictest2743036-21kworker/u16:0+events_unbound00:30:196
1995677992624,2cyclictest2678284-21kworker/u16:1+flush-8:000:24:284
1995677992624,2cyclictest2610801-21kworker/u16:0+events_unbound23:35:364
1995677992624,2cyclictest2482093-21kworker/u16:2+events_unbound23:02:444
1995677992624,2cyclictest2317694-21kworker/u16:3+events_unbound22:54:044
1995677992624,2cyclictest2301809-21kworker/u16:0+events_unbound21:40:394
1995687992522,1cyclictest2666576-21ssh23:55:147
1995684992524,1cyclictest2197332-21kworker/u16:1+flush-8:021:54:596
1995684992523,2cyclictest2113984-21kworker/u16:3+flush-8:020:25:006
1995682992523,2cyclictest2678679-21kworker/u16:4+events_unbound00:15:595
1995682992523,2cyclictest2610801-21kworker/u16:0+flush-8:023:45:045
1995682992523,2cyclictest2011234-21kworker/u16:5+events_unbound21:20:375
1995677992523,2cyclictest2678284-21kworker/u16:1+events_unbound00:03:564
1995687992421,2cyclictest2240460-21diskmemload00:23:507
1995684992421,2cyclictest2559351-21kworker/u16:1+events_unbound23:25:286
1995684992420,3cyclictest2317694-21kworker/u16:3+flush-8:022:25:046
1995682992422,2cyclictest2317694-21kworker/u16:3+flush-8:022:45:085
1995682992422,2cyclictest2279147-21kworker/u16:2+events_unbound21:30:105
1995677992422,2cyclictest2704197-21kworker/u16:3+events_unbound00:12:074
1995677992422,2cyclictest2704197-21kworker/u16:3+events_unbound00:12:074
1995677992422,2cyclictest2678679-21kworker/u16:4+events_unbound00:19:054
1995677992422,2cyclictest2317694-21kworker/u16:3+events_unbound22:55:524
1995687992322,0cyclictest0-21swapper/721:45:277
1995687992322,0cyclictest0-21swapper/721:38:287
1995687992321,1cyclictest2612890-21ssh23:33:397
1995682992321,2cyclictest2626681-21kworker/u16:3+flush-8:023:55:525
1995682992321,2cyclictest2106226-21kworker/u16:0+events_unbound20:13:475
1995682992321,2cyclictest2042442-21kworker/u16:0+events_unbound19:49:515
1995682992321,2cyclictest2011234-21kworker/u16:5+events_unbound20:54:305
1995682992320,2cyclictest1994613-21kworker/u16:1+events_unbound19:10:035
1995677992321,2cyclictest2743036-21kworker/u16:0+events_unbound00:26:174
1995677992321,2cyclictest2702698-21kworker/u16:2+events_unbound00:08:124
1995677992321,2cyclictest2317694-21kworker/u16:3+events_unbound22:46:504
1995677992321,2cyclictest2301809-21kworker/u16:0+events_unbound21:59:544
1995677992321,2cyclictest2197332-21kworker/u16:1+flush-8:021:49:594
1995677992321,2cyclictest2197332-21kworker/u16:1+events_unbound21:20:494
1995677992321,2cyclictest2028165-21kworker/u16:1+events_unbound19:55:214
1995677992321,2cyclictest2028165-21kworker/u16:1+events_unbound19:55:214
1995687992220,1cyclictest2521116-21sh22:56:157
1995687992220,1cyclictest2369035-21ssh21:59:437
1995687992219,2cyclictest2249636-21ssh21:10:247
1995687992219,2cyclictest2187056-21lockdev20:40:267
1995684992219,2cyclictest2678284-21kworker/u16:1+flush-8:000:20:146
1995684992218,3cyclictest2011234-21kworker/u16:5+flush-8:021:10:176
1995682992220,2cyclictest2704197-21kworker/u16:3+flush-8:000:24:535
1995682992220,2cyclictest2678284-21kworker/u16:1+flush-8:000:32:145
1995682992220,2cyclictest2678284-21kworker/u16:1+flush-8:000:01:005
1995682992220,2cyclictest2610801-21kworker/u16:0+flush-8:023:44:595
1995682992220,2cyclictest2317694-21kworker/u16:3+events_unbound22:20:395
1995682992220,2cyclictest2279147-21kworker/u16:2+flush-8:021:39:545
1995682992220,2cyclictest2028165-21kworker/u16:1+events_unbound20:05:005
1995682992220,2cyclictest2028165-21kworker/u16:1+events_unbound20:04:325
1995682992220,2cyclictest2011234-21kworker/u16:5+events_unbound20:44:245
1995682992220,2cyclictest2011234-21kworker/u16:5+events_unbound20:17:525
1995682992220,2cyclictest2011234-21kworker/u16:5+events_unbound19:42:515
1995682992219,2cyclictest2317694-21kworker/u16:3+events_unbound22:50:005
1995677992220,2cyclictest2743036-21kworker/u16:0+flush-8:000:37:164
1995677992220,2cyclictest2197332-21kworker/u16:1+events_unbound20:59:554
1995677992220,2cyclictest2113984-21kworker/u16:3+events_unbound20:37:284
1995677992220,2cyclictest2053229-21kworker/u16:2+events_unbound19:48:524
1995677992220,2cyclictest2028165-21kworker/u16:1+events_unbound19:37:404
1995677992220,2cyclictest2011234-21kworker/u16:5+events_unbound20:43:304
1995677992220,2cyclictest2011234-21kworker/u16:5+events_unbound20:32:564
1995677992220,2cyclictest2002337-21kworker/u16:4+events_unbound19:33:204
1995677992219,2cyclictest2559351-21kworker/u16:1+flush-8:023:25:044
1995677992219,2cyclictest2279147-21kworker/u16:2+events_unbound21:35:134
1995687992120,0cyclictest0-21swapper/722:44:387
1995687992120,0cyclictest0-21swapper/722:12:197
1995684992118,3cyclictest2317694-21kworker/u16:3+flush-8:022:30:246
1995684992117,3cyclictest2279147-21kworker/u16:2+flush-8:021:25:246
1995682992119,2cyclictest2768383-21kworker/u16:2+flush-8:000:35:045
1995682992119,2cyclictest2678284-21kworker/u16:1+events_unbound00:26:485
1995682992119,2cyclictest2317694-21kworker/u16:3+events_unbound22:26:005
1995682992119,2cyclictest2230039-21kworker/u16:4+events_unbound21:25:465
1995682992119,2cyclictest2197332-21kworker/u16:1+events_unbound20:56:395
1995682992119,2cyclictest2113984-21kworker/u16:3+events_unbound21:07:515
1995682992119,2cyclictest2053229-21kworker/u16:2+events_unbound20:26:435
1995682992119,2cyclictest2011234-21kworker/u16:5+events_unbound19:58:525
1995682992119,2cyclictest2011234-21kworker/u16:5+events_unbound19:58:525
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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