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2026-01-04 - 12:42
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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 highest latencies:
System rack0slot2.osadl.org (updated Sun Jan 04, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9175221460,1sleep791756-21kthreadcore20:18:497
198752640,0sleep60-21swapper/619:38:586
4143208994943,5cyclictest272058-21latency_hist21:53:307
414264124332,8sleep40-21swapper/419:04:594
342432430,1chrt0-21swapper/419:48:494
414288124232,7sleep50-21swapper/519:08:215
414199624229,8sleep60-21swapper/619:04:056
4143205994038,2cyclictest436521-21kworker/u16:4+events_unbound00:08:446
4143208993933,5cyclictest650-21systemd-journal20:18:307
4143205993936,2cyclictest253109-21kworker/u16:0+flush-8:021:48:446
4143205993836,2cyclictest426879-21kworker/u16:2+flush-8:023:33:456
4143205993836,2cyclictest195162-21kworker/u16:4+events_unbound21:53:436
41426072383,31sleep70-21swapper/719:04:307
4143205993734,2cyclictest175492-21kworker/u16:3+flush-8:023:03:456
4143205993634,2cyclictest426879-21kworker/u16:2+flush-8:023:23:296
4143205993633,2cyclictest59432-21kworker/u16:0+events_unbound20:43:446
4143205993633,2cyclictest4133279-21kworker/u16:5+events_unbound19:33:446
4143205993633,2cyclictest175492-21kworker/u16:3+events_unbound21:28:296
4143198993633,2cyclictest59432-21kworker/u16:0+events_unbound20:38:504
4143198993633,2cyclictest543091-21kworker/u16:2+flush-8:000:13:454
4143198993633,2cyclictest175492-21kworker/u16:3+flush-8:021:43:304
4143198993633,2cyclictest175492-21kworker/u16:3+flush-8:021:43:304
4143205993532,2cyclictest195162-21kworker/u16:4+events_unbound22:28:486
4143205993532,2cyclictest195162-21kworker/u16:4+events_unbound22:28:486
4143202993533,2cyclictest563380-21kworker/u16:2+events_unbound00:24:045
4143205993432,2cyclictest88775-21kworker/u16:1+flush-8:021:08:306
4143205993431,2cyclictest436521-21kworker/u16:4+events_unbound23:43:456
4143198993431,2cyclictest146671-21kworker/u16:2+flush-8:020:58:444
4143205993331,2cyclictest4060431-21kworker/u16:4+events_unbound20:03:306
4143205993331,2cyclictest253109-21kworker/u16:0+events_unbound21:43:476
4143205993330,2cyclictest4060431-21kworker/u16:4+flush-8:019:19:006
4143202993331,2cyclictest59432-21kworker/u16:0+flush-8:020:53:545
4143202993331,2cyclictest59432-21kworker/u16:0+flush-8:020:53:545
4143198993330,2cyclictest4060431-21kworker/u16:4+events_unbound19:18:454
4143198993329,3cyclictest175492-21kworker/u16:3+flush-8:022:08:454
4143205993230,2cyclictest175492-21kworker/u16:3+flush-8:022:43:596
4143205993230,2cyclictest146671-21kworker/u16:2+events_unbound20:48:546
4143205993229,2cyclictest514209-21kworker/u16:1+events_unbound00:18:446
4143205993229,2cyclictest11595-21kworker/u16:1+events_unbound19:54:016
4143202993230,2cyclictest493538-21kworker/u16:0+events_unbound00:18:095
4143198993230,2cyclictest493538-21kworker/u16:0+flush-8:000:33:454
4143198993230,2cyclictest4060431-21kworker/u16:4+flush-8:019:58:304
4143198993229,2cyclictest253109-21kworker/u16:0+events_unbound21:43:454
4143205993129,2cyclictest59432-21kworker/u16:0+flush-8:020:18:436
4143205993129,2cyclictest514209-21kworker/u16:1+flush-8:000:13:496
4143205993128,2cyclictest175492-21kworker/u16:3+flush-8:022:19:126
4143202993129,2cyclictest436521-21kworker/u16:4+flush-8:000:08:585
4143202993129,2cyclictest340028-21kworker/u16:0+flush-8:022:38:585
4143202993129,2cyclictest195162-21kworker/u16:4+events_unbound22:28:585
4143202993129,2cyclictest195162-21kworker/u16:4+events_unbound22:28:585
4143202993128,2cyclictest4060431-21kworker/u16:4+flush-8:020:13:585
4143205993028,2cyclictest426879-21kworker/u16:2+flush-8:023:53:306
4143205993028,2cyclictest417533-21kworker/u16:0+events_unbound23:08:526
4143205993028,2cyclictest4060431-21kworker/u16:4+flush-8:020:13:566
4143205993028,2cyclictest4060431-21kworker/u16:4+flush-8:019:13:256
4143205993027,2cyclictest175492-21kworker/u16:3+flush-8:022:28:256
4143202993028,2cyclictest580844-21kworker/u16:1+events_unbound00:33:435
4143202993028,2cyclictest146671-21kworker/u16:2+events_unbound20:52:295
4143202993028,2cyclictest11595-21kworker/u16:1+flush-8:019:58:535
4143202993027,2cyclictest426879-21kworker/u16:2+flush-8:023:28:405
4143202993026,3cyclictest175492-21kworker/u16:3+flush-8:021:58:565
4143198993028,2cyclictest4060431-21kworker/u16:4+flush-8:019:28:304
4143198993027,2cyclictest195162-21kworker/u16:4+events_unbound21:59:004
2211072300,1sleep40-21swapper/421:23:524
4143205992927,2cyclictest4060431-21kworker/u16:4+events_unbound19:52:416
4143205992926,2cyclictest4133279-21kworker/u16:5+flush-8:020:03:526
4143205992926,2cyclictest4133279-21kworker/u16:5+flush-8:020:03:526
4143205992926,2cyclictest253109-21kworker/u16:0+events_unbound21:58:316
4143205992926,2cyclictest195162-21kworker/u16:4+flush-8:022:48:446
4143202992927,2cyclictest4133279-21kworker/u16:5+events_unbound19:43:525
4143202992927,2cyclictest282804-21kworker/u16:5+events_unbound22:15:415
4143202992926,2cyclictest59432-21kworker/u16:0+events_unbound20:43:325
4143202992926,2cyclictest426879-21kworker/u16:2+events_unbound23:18:585
4143202992926,2cyclictest4060431-21kworker/u16:4+events_unbound19:23:345
4143198992927,2cyclictest59432-21kworker/u16:0+events_unbound21:28:564
4143198992927,2cyclictest175492-21kworker/u16:3+flush-8:021:38:244
4143198992926,2cyclictest59432-21kworker/u16:0+events_unbound20:53:444
4143198992926,2cyclictest59432-21kworker/u16:0+events_unbound20:53:444
4143198992926,2cyclictest175492-21kworker/u16:3+flush-8:022:38:304
4143205992826,2cyclictest2667662-21kworker/u16:3+flush-8:019:13:456
4143202992826,2cyclictest436521-21kworker/u16:4+events_unbound23:42:335
4143202992825,2cyclictest493538-21kworker/u16:0+events_unbound23:53:495
4143202992825,2cyclictest426879-21kworker/u16:2+events_unbound23:48:525
4143202992825,2cyclictest4060431-21kworker/u16:4+flush-8:019:30:465
4143198992827,1cyclictest59432-21kworker/u16:0+events_unbound21:11:094
4143198992826,2cyclictest282804-21kworker/u16:5+events_unbound22:23:244
4143198992826,2cyclictest195162-21kworker/u16:4+flush-8:022:38:484
4143205992725,2cyclictest59432-21kworker/u16:0+flush-8:021:08:566
4143205992725,2cyclictest195162-21kworker/u16:4+events_unbound22:43:246
4143205992725,2cyclictest175492-21kworker/u16:3+flush-8:021:38:456
4143205992725,2cyclictest175492-21kworker/u16:3+flush-8:021:38:456
4143202992725,2cyclictest467099-21kworker/u16:1+events_unbound23:37:415
4143202992725,2cyclictest175492-21kworker/u16:3+events_unbound23:01:405
4143202992725,2cyclictest11595-21kworker/u16:1+events_unbound19:58:135
4143202992724,2cyclictest426879-21kworker/u16:2+events_unbound23:15:295
4143202992724,2cyclictest4133279-21kworker/u16:5+events_unbound20:08:475
4143202992724,2cyclictest175492-21kworker/u16:3+events_unbound21:17:305
4143205992625,1cyclictest514209-21kworker/u16:1+events_unbound00:01:096
4143205992624,2cyclictest59432-21kworker/u16:0+flush-8:020:53:456
4143205992624,2cyclictest59432-21kworker/u16:0+flush-8:020:53:456
4143202992623,2cyclictest88775-21kworker/u16:1+flush-8:021:08:335
4143202992623,2cyclictest4133279-21kworker/u16:5+events_unbound20:03:485
4143202992623,2cyclictest4133279-21kworker/u16:5+events_unbound20:03:485
4143198992623,2cyclictest282804-21kworker/u16:5+events_unbound22:03:454
4143198992623,2cyclictest175492-21kworker/u16:3+events_unbound22:58:444
4143205992522,2cyclictest436521-21kworker/u16:4+events_unbound00:23:436
4143202992523,2cyclictest88775-21kworker/u16:1+events_unbound20:31:135
4143202992523,2cyclictest59432-21kworker/u16:0+events_unbound21:05:135
4143202992523,2cyclictest59432-21kworker/u16:0+events_unbound20:19:415
4143202992523,2cyclictest493538-21kworker/u16:0+events_unbound00:32:365
4143202992523,2cyclictest436521-21kworker/u16:4+flush-8:000:04:005
4143202992523,2cyclictest436521-21kworker/u16:4+events_unbound23:27:415
4143202992523,2cyclictest301513-21kworker/u16:1+events_unbound22:10:125
4143202992523,2cyclictest195162-21kworker/u16:4+flush-8:021:34:025
4143202992522,2cyclictest514209-21kworker/u16:1+events_unbound23:58:425
4143202992522,2cyclictest282804-21kworker/u16:5+events_unbound22:26:255
4143202992522,2cyclictest175492-21kworker/u16:3+events_unbound22:36:335
4143198992523,2cyclictest59432-21kworker/u16:0+events_unbound20:43:534
4143198992523,2cyclictest175492-21kworker/u16:3+events_unbound22:33:244
4143198992523,2cyclictest175492-21kworker/u16:3+events_unbound22:33:244
4143198992523,2cyclictest11595-21kworker/u16:1+events_unbound19:43:484
4143198992521,3cyclictest282804-21kworker/u16:5+flush-8:023:13:564
4143205992422,2cyclictest59432-21kworker/u16:0+flush-8:020:23:586
4143205992422,2cyclictest4060431-21kworker/u16:4+flush-8:019:28:256
4143205992422,2cyclictest282804-21kworker/u16:5+events_unbound22:03:476
4143205992421,2cyclictest4060431-21kworker/u16:4+events_unbound19:28:376
4143205992421,2cyclictest301513-21kworker/u16:1+flush-8:022:11:216
4143202992422,2cyclictest59432-21kworker/u16:0+events_unbound21:02:125
4143202992422,2cyclictest436521-21kworker/u16:4+events_unbound23:43:435
4143202992422,2cyclictest4133279-21kworker/u16:5+events_unbound19:17:215
4143202992422,2cyclictest340028-21kworker/u16:0+events_unbound22:52:415
4143202992422,2cyclictest340028-21kworker/u16:0+events_unbound22:43:535
4143202992422,2cyclictest195162-21kworker/u16:4+flush-8:021:53:415
4143202992422,2cyclictest195162-21kworker/u16:4+events_unbound21:46:415
4143202992421,2cyclictest4060431-21kworker/u16:4+flush-8:019:18:465
4143202992421,2cyclictest195162-21kworker/u16:4+flush-8:021:48:555
4143205992321,2cyclictest59432-21kworker/u16:0+events_unbound20:29:066
4143205992321,2cyclictest493538-21kworker/u16:0+events_unbound00:36:396
4143205992321,2cyclictest426879-21kworker/u16:2+events_unbound23:15:406
4143205992321,2cyclictest4060431-21kworker/u16:4+flush-8:020:10:426
4143205992321,2cyclictest282804-21kworker/u16:5+events_unbound22:57:406
4143205992320,2cyclictest195162-21kworker/u16:4+flush-8:021:18:536
4143202992321,2cyclictest59432-21kworker/u16:0+events_unbound21:28:335
4143202992320,2cyclictest514209-21kworker/u16:1+events_unbound00:20:415
4143198992321,2cyclictest436521-21kworker/u16:4+events_unbound23:58:584
4143198992320,2cyclictest563380-21kworker/u16:2+events_unbound00:23:494
4143202992220,2cyclictest417533-21kworker/u16:0+events_unbound23:09:455
4143202992220,2cyclictest4060431-21kworker/u16:4+flush-8:019:51:405
4143202992220,2cyclictest11595-21kworker/u16:1+events_unbound19:41:135
4143198992220,2cyclictest59432-21kworker/u16:0+events_unbound21:13:324
4143198992220,2cyclictest4133279-21kworker/u16:5+flush-8:019:33:254
4143198992220,2cyclictest4060431-21kworker/u16:4+events_unbound20:13:484
4143198992220,2cyclictest175492-21kworker/u16:3+flush-8:021:20:404
4143198992219,3cyclictest514209-21kworker/u16:1+flush-8:000:23:304
4143198992219,2cyclictest436521-21kworker/u16:4+flush-8:023:43:404
4143198992219,2cyclictest4060431-21kworker/u16:4+flush-8:019:38:414
4143198992219,2cyclictest233347-21kworker/u16:1+flush-8:021:49:004
4143208992116,4cyclictest136851-21latency_hist20:43:307
4143205992119,2cyclictest493538-21kworker/u16:0+events_unbound23:51:366
4143202992119,2cyclictest175492-21kworker/u16:3+flush-8:021:18:475
4143202992119,2cyclictest175492-21kworker/u16:3+events_unbound21:39:025
4143202992119,2cyclictest175492-21kworker/u16:3+events_unbound21:39:025
4143198992119,2cyclictest417533-21kworker/u16:0+flush-8:023:08:554
4143198992119,2cyclictest340028-21kworker/u16:0+events_unbound22:53:534
4143198992118,2cyclictest563380-21kworker/u16:2+flush-8:000:28:404
4143205992018,2cyclictest59432-21kworker/u16:0+flush-8:020:38:556
4143205992018,2cyclictest175492-21kworker/u16:3+flush-8:022:59:316
4143205992017,2cyclictest563380-21kworker/u16:2+flush-8:000:28:506
4143202992018,2cyclictest282804-21kworker/u16:5+events_unbound22:03:555
4143198992018,2cyclictest436521-21kworker/u16:4+events_unbound23:31:404
4143198992017,2cyclictest195162-21kworker/u16:4+flush-8:022:13:304
4143208991914,4cyclictest146493-21latency_hist20:48:307
4143208991913,5cyclictest591279-21latency_hist00:38:297
4143205991917,2cyclictest59432-21kworker/u16:0+events_unbound21:28:446
4143205991917,2cyclictest493538-21kworker/u16:0+events_unbound00:06:416
4143205991917,2cyclictest436521-21kworker/u16:4+events_unbound23:29:416
4143202991917,2cyclictest59432-21kworker/u16:0+flush-8:021:23:495
4143202991917,2cyclictest175492-21kworker/u16:3+events_unbound23:04:345
4143198991917,2cyclictest59432-21kworker/u16:0+events_unbound20:37:424
4143198991917,2cyclictest233347-21kworker/u16:1+events_unbound21:53:554
4143198991916,2cyclictest4060431-21kworker/u16:4+events_unbound19:33:524
4143198991916,2cyclictest146671-21kworker/u16:2+events_unbound21:03:424
4143205991816,2cyclictest175492-21kworker/u16:3+flush-8:022:14:046
4143202991816,2cyclictest59432-21kworker/u16:0+events_unbound20:37:115
4143202991816,2cyclictest4060431-21kworker/u16:4+events_unbound19:33:345
4143198991816,2cyclictest493538-21kworker/u16:0+flush-8:023:53:504
4143198991816,2cyclictest4133279-21kworker/u16:5+flush-8:020:02:414
4143198991815,2cyclictest59432-21kworker/u16:0+events_unbound20:48:474
4143198991815,2cyclictest493538-21kworker/u16:0+flush-8:023:48:454
4143208991714,2cyclictest1267-21snmpd00:27:077
4143205991715,2cyclictest59432-21kworker/u16:0+events_unbound20:35:086
4143205991715,2cyclictest11595-21kworker/u16:1+events_unbound19:45:416
4143205991714,2cyclictest175492-21kworker/u16:3+flush-8:022:38:256
4143205991714,2cyclictest175492-21kworker/u16:3+flush-8:021:13:566
4143202991714,2cyclictest340028-21kworker/u16:0+flush-8:022:53:515
4143198991715,2cyclictest426879-21kworker/u16:2+flush-8:023:20:124
4143208991613,2cyclictest1267-21snmpd20:52:537
4143205991614,2cyclictest146671-21kworker/u16:2+events_unbound21:02:296
4143202991614,2cyclictest59432-21kworker/u16:0+events_unbound20:40:115
4143202991614,2cyclictest59432-21kworker/u16:0+events_unbound20:27:115
4143202991614,2cyclictest282804-21kworker/u16:5+flush-8:022:22:325
4143198991614,2cyclictest59432-21kworker/u16:0+flush-8:020:18:334
4143198991614,2cyclictest436521-21kworker/u16:4+events_unbound00:10:414
4143198991614,2cyclictest4060431-21kworker/u16:4+events_unbound20:04:424
4143198991614,2cyclictest4060431-21kworker/u16:4+events_unbound20:04:424
4143198991614,2cyclictest282804-21kworker/u16:5+events_unbound22:23:434
4143198991613,2cyclictest426879-21kworker/u16:2+flush-8:023:43:304
414320899159,5cyclictest50047-21latency_hist19:58:307
414320899159,5cyclictest388516-21/usr/sbin/munin22:53:567
414320899159,5cyclictest1267-21snmpd23:10:157
414320899157,7cyclictest5944-21gmain21:58:567
4143208991513,1cyclictest0-21swapper/723:28:507
4143208991512,2cyclictest0-21swapper/700:08:517
414320899150,13cyclictest1267-21snmpd22:47:597
4143205991513,2cyclictest436521-21kworker/u16:4+flush-8:023:26:416
4143198991512,2cyclictest88775-21kworker/u16:1+flush-8:020:23:464
4143198991512,2cyclictest436521-21kworker/u16:4+events_unbound00:03:374
414320899149,4cyclictest78044-21ntpq20:08:567
414320899149,3cyclictest300163-21ntpq22:03:567
414320899146,7cyclictest4161184-21kthreadcore19:13:537
414320899146,7cyclictest194779-21latency_hist21:13:307
4143208991411,2cyclictest261446-21ntpq21:43:577
4143208991411,2cyclictest0-21swapper/720:53:577
4143208991411,2cyclictest0-21swapper/720:53:577
4143208991411,2cyclictest0-21swapper/719:48:567
4143208991410,3cyclictest445200-21ntpq23:18:557
414320899140,4cyclictest382331-21kthreadcore22:48:507
414320899140,12cyclictest53652-21grep19:58:497
414320899140,12cyclictest528145-21kthreadcore00:03:507
414320899140,12cyclictest16852-21kthreadcore19:38:557
414320899140,12cyclictest10460-21ntpq19:33:567
4143205991412,2cyclictest436521-21kworker/u16:4+events_unbound23:40:416
4143202991412,2cyclictest2667662-21kworker/u16:3+flush-8:019:09:055
414320899139,3cyclictest504541-21/usr/sbin/munin23:54:017
414320899139,3cyclictest474233-21ntpq23:33:537
414320899139,3cyclictest331072-21df22:23:437
414320899139,3cyclictest1267-21snmpd22:40:237
414320899139,3cyclictest1267-21snmpd19:24:517
414320899139,3cyclictest0-21swapper/722:28:497
414320899139,3cyclictest0-21swapper/722:28:497
414320899138,4cyclictest650-21systemd-journal23:48:257
414320899138,4cyclictest417316-21cut23:08:297
414320899138,4cyclictest215365-21cat21:23:467
414320899137,5cyclictest495410-21df_inode23:48:447
414320899137,5cyclictest230947-21kthreadcore21:28:527
414320899137,5cyclictest109568-21kthreadcore20:28:487
414320899136,2cyclictest0-21swapper/723:13:307
414320899134,8cyclictest6045-21gmain00:13:557
4143208991310,2cyclictest242126-21ntpq21:33:587
4143208991310,2cyclictest126261-21ntpq20:34:007
4143208991310,2cyclictest0-21swapper/722:18:447
414320899130,6cyclictest699-21systemd-udevd00:23:277
414320899130,5cyclictest626489rtkit-daemon20:23:317
414320899130,4cyclictest251763-21ntp_kernel_pll_21:38:567
414320899130,4cyclictest251763-21ntp_kernel_pll_21:38:567
414320899130,12cyclictest455901-21/usr/sbin/munin23:28:307
414320899130,11cyclictest515614-21cut23:58:477
414320899130,11cyclictest312322-21irqcore22:13:477
414320899130,11cyclictest277327-21tr21:53:487
4143198991311,2cyclictest340028-21kworker/u16:0+events_unbound22:53:124
414320899128,3cyclictest60157-21cpuspeed20:03:447
414320899128,3cyclictest60157-21cpuspeed20:03:447
414320899128,3cyclictest180963-21cut21:03:497
414320899127,4cyclictest4185977-21/usr/sbin/munin19:28:457
414320899125,6cyclictest398482-21expr22:58:447
414320899124,7cyclictest575569-21cat00:28:497
414320899124,7cyclictest0-21swapper/719:18:337
414320899124,6cyclictest353632-21grep22:33:497
414320899123,8cyclictest0-21swapper/723:39:477
414320899123,7cyclictest301966-21cat22:08:447
414320899120,5cyclictest167405-21kthreadcore20:58:497
414320899120,3cyclictest210373-21cut21:18:507
4143198991210,2cyclictest88775-21kworker/u16:1+flush-8:020:32:124
4143198991210,2cyclictest426879-21kworker/u16:2+events_unbound23:35:444
414319899120,1cyclictest0-21swapper/423:23:414
414319899120,1cyclictest0-21swapper/422:46:104
414320899118,2cyclictest1267-21snmpd19:11:307
414320899114,6cyclictest21833-21expr19:43:447
414320899110,9cyclictest196005-21irqcore21:13:477
414320599110,11cyclictest0-21swapper/621:35:436
414319899118,2cyclictest4060431-21kworker/u16:4+flush-8:019:08:414
4143198991110,1cyclictest0-21swapper/419:16:574
414319899110,11cyclictest0-21swapper/420:09:374
41431989998,1cyclictest0-21swapper/423:05:144
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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