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2026-01-11 - 05:25
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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 Sun Jan 11, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
396774825521,30sleep70-21swapper/719:06:197
3968149994644,2cyclictest4058628-21kworker/u16:0+events_unbound21:53:025
3968157994540,4cyclictest650-21systemd-journal20:38:027
3968154994038,2cyclictest411315-21kworker/u16:3+events_unbound23:52:036
3968149994038,2cyclictest4078277-21kworker/u16:1+events_unbound21:08:035
396763523929,7sleep60-21swapper/619:04:416
3968149993836,2cyclictest178873-21kworker/u16:0+flush-8:022:33:025
396759523828,7sleep50-21swapper/519:04:085
3968154993735,2cyclictest340127-21kworker/u16:2+events_unbound23:40:006
3968154993735,2cyclictest291455-21kworker/u16:1+events_unbound23:57:006
3968154993735,2cyclictest291455-21kworker/u16:1+events_unbound23:36:316
3968154993735,2cyclictest191763-21kworker/u16:5+events_unbound22:49:236
3968149993736,1cyclictest340127-21kworker/u16:2+events_unbound23:25:565
3968149993736,1cyclictest291455-21kworker/u16:1+events_unbound23:53:045
396786023711,8sleep40-21swapper/419:07:524
3968154993634,2cyclictest425426-21kworker/u16:4+events_unbound00:21:206
3968154993634,2cyclictest278863-21kworker/u16:2+events_unbound23:09:396
3968154993634,2cyclictest191763-21kworker/u16:5+flush-8:023:15:396
3968154993634,2cyclictest131317-21kworker/u16:4+events_unbound22:29:396
3968154993532,2cyclictest4058628-21kworker/u16:0+events_unbound21:28:076
3968149993533,2cyclictest4078277-21kworker/u16:1+flush-8:020:53:205
3968149993533,2cyclictest178873-21kworker/u16:0+events_unbound22:57:595
3968154993432,2cyclictest425426-21kworker/u16:4+flush-8:000:08:396
3968154993432,2cyclictest4058628-21kworker/u16:0+events_unbound21:47:326
3968154993432,2cyclictest291455-21kworker/u16:1+flush-8:023:44:206
3968154993432,2cyclictest178873-21kworker/u16:0+events_unbound22:47:046
3968154993432,2cyclictest178873-21kworker/u16:0+events_unbound22:39:116
3968154993432,2cyclictest178873-21kworker/u16:0+events_unbound22:39:116
3968154993432,2cyclictest131317-21kworker/u16:4+events_unbound22:05:076
3968154993432,2cyclictest10967-21kworker/u16:3+events_unbound21:42:566
3968149993432,2cyclictest83732-21kworker/u16:1+events_unbound21:58:565
3968149993432,2cyclictest425426-21kworker/u16:4+events_unbound00:29:115
3968149993432,2cyclictest3904214-21kworker/u16:0+events_unbound19:13:035
3968147993432,2cyclictest291455-21kworker/u16:1+flush-8:023:34:034
3968157993332,0cyclictest0-21swapper/722:25:077
3968157993332,0cyclictest0-21swapper/700:04:147
3968154993331,2cyclictest83732-21kworker/u16:1+flush-8:021:59:436
3968154993331,2cyclictest4058628-21kworker/u16:0+flush-8:020:33:326
3968154993331,2cyclictest314255-21kworker/u16:0+events_unbound23:29:486
3968149993331,2cyclictest425426-21kworker/u16:4+events_unbound00:18:575
3968147993331,2cyclictest19730-21kworker/u16:5+events_unbound21:33:244
3968157993231,0cyclictest0-21swapper/723:21:147
3968157993231,0cyclictest0-21swapper/723:21:147
3968154993230,2cyclictest83732-21kworker/u16:1+events_unbound21:56:316
3968154993230,2cyclictest291455-21kworker/u16:1+events_unbound23:27:306
3968154993230,2cyclictest191763-21kworker/u16:5+events_unbound22:23:006
3968154993230,2cyclictest10967-21kworker/u16:3+flush-8:021:34:076
3968154993229,2cyclictest425028-21kworker/u16:0+events_unbound00:23:066
3968157993130,0cyclictest0-21swapper/722:32:317
3968154993129,2cyclictest83732-21kworker/u16:1+events_unbound21:49:236
3968154993129,2cyclictest4058628-21kworker/u16:0+events_unbound21:16:356
3968154993129,2cyclictest4058628-21kworker/u16:0+events_unbound20:14:136
3968154993129,2cyclictest278863-21kworker/u16:2+flush-8:023:06:266
3968154993129,2cyclictest129268-21kworker/u16:2+flush-8:022:13:506
3968154993128,2cyclictest425028-21kworker/u16:0+events_unbound00:33:066
3968154993128,2cyclictest411315-21kworker/u16:3+events_unbound23:58:036
3968154993128,2cyclictest4058628-21kworker/u16:0+flush-8:021:08:106
3968149993129,2cyclictest228380-21kworker/u16:1+events_unbound22:43:005
3968149993129,2cyclictest228380-21kworker/u16:1+events_unbound22:43:005
3968149993129,2cyclictest178873-21kworker/u16:0+events_unbound23:02:445
3968149993129,2cyclictest178873-21kworker/u16:0+events_unbound22:48:325
3968149993129,2cyclictest131317-21kworker/u16:4+events_unbound22:13:045
3968147993129,2cyclictest178873-21kworker/u16:0+events_unbound22:28:324
3968157993029,0cyclictest0-21swapper/700:15:597
3968154993028,2cyclictest425028-21kworker/u16:0+flush-8:000:16:146
3968154993028,2cyclictest4078277-21kworker/u16:1+events_unbound20:52:126
3968154993028,2cyclictest3844074-21kworker/u16:5+flush-8:019:53:366
3968154993028,2cyclictest191763-21kworker/u16:5+events_unbound23:00:266
3968154993028,2cyclictest129268-21kworker/u16:2+events_unbound22:12:156
3968154993027,3cyclictest291455-21kworker/u16:1+events_unbound23:22:256
3968154993027,3cyclictest291455-21kworker/u16:1+events_unbound23:22:256
3968149993028,2cyclictest4058628-21kworker/u16:0+events_unbound20:08:025
3968149993028,2cyclictest291455-21kworker/u16:1+events_unbound23:07:125
3968149993028,2cyclictest19730-21kworker/u16:5+events_unbound21:32:295
3968149993028,2cyclictest191763-21kworker/u16:5+flush-8:023:20:165
3968149993028,2cyclictest191763-21kworker/u16:5+flush-8:023:20:165
3968149993028,2cyclictest10967-21kworker/u16:3+events_unbound21:36:295
3968154992927,2cyclictest425469-21kworker/u16:5+flush-8:000:04:386
3968154992927,2cyclictest4078277-21kworker/u16:1+events_unbound20:38:356
3968154992927,2cyclictest3844074-21kworker/u16:5+events_unbound20:53:266
3968154992927,2cyclictest3844074-21kworker/u16:5+events_unbound20:20:366
3968154992927,2cyclictest19730-21kworker/u16:5+events_unbound21:19:186
3968154992927,2cyclictest10967-21kworker/u16:3+events_unbound21:27:506
3968149992927,2cyclictest425028-21kworker/u16:0+events_unbound00:36:565
3968149992927,2cyclictest291455-21kworker/u16:1+events_unbound23:45:445
3968149992927,2cyclictest291455-21kworker/u16:1+events_unbound23:38:245
3968149992927,2cyclictest19730-21kworker/u16:5+events_unbound21:21:485
3968149992927,2cyclictest131317-21kworker/u16:4+events_unbound22:26:005
3968147992927,2cyclictest228380-21kworker/u16:1+events_unbound22:47:574
3968157992827,1cyclictest362737-21ssh23:30:317
3968157992827,0cyclictest0-21swapper/719:57:247
3968157992825,2cyclictest96-21ksoftirqd/722:04:147
3968154992826,2cyclictest4058628-21kworker/u16:0+events_unbound20:11:136
3968154992826,2cyclictest254566-21kworker/u16:3+events_unbound22:55:506
3968154992826,2cyclictest228380-21kworker/u16:1+events_unbound22:35:156
3968154992826,2cyclictest131317-21kworker/u16:4+events_unbound22:26:196
3968149992826,2cyclictest425469-21kworker/u16:5+events_unbound00:09:445
3968149992826,2cyclictest425028-21kworker/u16:0+events_unbound00:15:365
3968149992826,2cyclictest129268-21kworker/u16:2+flush-8:021:53:445
3968149992826,2cyclictest129268-21kworker/u16:2+events_unbound22:08:215
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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