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2026-08-18 - 15:47
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Tue Aug 18, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3309000997068,2cyclictest3409640-21kworker/u16:4+events_unbound08:22:046
330851525746,7sleep40-21swapper/407:05:104
3309000995249,2cyclictest3341696-21kworker/u16:1+events_unbound07:47:566
3308997995147,4cyclictest3922661-21kworker/u16:1+flush-8:011:47:425
3308997995146,5cyclictest3740455-21kworker/u16:1+flush-8:010:37:425
3308995995149,2cyclictest3535740-21kworker/u16:4+events_unbound09:13:164
3308995994947,2cyclictest3526332-21kworker/u16:3+flush-8:009:03:084
3308995994744,2cyclictest3935150-21kworker/u16:2+flush-8:012:23:074
330844924636,7sleep50-21swapper/507:04:155
3309000994543,2cyclictest3922661-21kworker/u16:1+events_unbound12:32:566
3309000994542,2cyclictest3680132-21kworker/u16:5+flush-8:010:23:106
3309000994542,2cyclictest3567767-21kworker/u16:0+flush-8:009:47:566
3308997994541,3cyclictest3740455-21kworker/u16:1+flush-8:010:28:005
3308995994543,2cyclictest3863585-21kworker/u16:5+flush-8:011:33:144
3309000994442,2cyclictest3400098-21kworker/u16:2+events_unbound08:07:426
3308995994442,2cyclictest3800681-21kworker/u16:2+events_unbound11:03:144
3308995994442,2cyclictest3516363-21kworker/u16:1+events_unbound09:08:154
3308995994441,2cyclictest3341696-21kworker/u16:1+events_unbound07:52:594
3308995994341,2cyclictest3680132-21kworker/u16:5+flush-8:010:33:204
3309001994241,0cyclictest0-21swapper/709:53:187
3309001994241,0cyclictest0-21swapper/709:48:117
3309001994239,2cyclictest3860086-21ntpq11:13:107
3309000994240,2cyclictest3800681-21kworker/u16:2+flush-8:010:53:026
3308995994240,2cyclictest3535740-21kworker/u16:4+events_unbound09:23:104
3308995994240,2cyclictest3535740-21kworker/u16:4+events_unbound09:23:104
33085492427,30sleep70-21swapper/707:05:377
3309000994138,2cyclictest3468449-21kworker/u16:0+events_unbound08:27:566
3308995994139,2cyclictest4023690-21kworker/u16:3+events_unbound12:28:104
3309000994037,2cyclictest3567767-21kworker/u16:0+events_unbound09:27:576
3309000994037,2cyclictest3535740-21kworker/u16:4+flush-8:009:13:036
3308995994038,2cyclictest3680132-21kworker/u16:5+events_unbound10:48:094
3308995994038,2cyclictest3680131-21kworker/u16:4+events_unbound10:07:594
3308995994038,2cyclictest3516363-21kworker/u16:1+flush-8:009:57:584
3308995994037,2cyclictest3740455-21kworker/u16:1+flush-8:010:38:034
3309001993938,0cyclictest0-21swapper/707:43:147
3309001993934,3cyclictest3584100-21kthreadcore09:23:047
3309001993934,3cyclictest3584100-21kthreadcore09:23:047
3309000993937,2cyclictest3644324-21kworker/u16:3+events_unbound10:03:106
3309000993937,2cyclictest3644324-21kworker/u16:3+events_unbound10:03:106
3308995993937,2cyclictest3935150-21kworker/u16:2+events_unbound11:58:144
3308995993937,2cyclictest3863585-21kworker/u16:5+flush-8:011:27:564
3308995993937,2cyclictest3618297-21kworker/u16:2+events_unbound09:43:164
3308995993936,2cyclictest3341696-21kworker/u16:1+events_unbound07:57:444
3309001993836,1cyclictest0-21swapper/710:08:147
3309001993831,5cyclictest648-21systemd-journal10:32:427
3309000993836,2cyclictest3922661-21kworker/u16:1+events_unbound12:03:526
3309000993836,2cyclictest3922661-21kworker/u16:1+events_unbound12:03:526
3309000993836,2cyclictest3516363-21kworker/u16:1+flush-8:009:18:126
3308997993836,2cyclictest3727958-21kworker/u16:0+events_unbound10:42:425
3308995993836,2cyclictest3922661-21kworker/u16:1+events_unbound12:11:244
3308995993836,2cyclictest3814475-21kworker/u16:4+events_unbound10:59:314
3308995993836,2cyclictest3680131-21kworker/u16:4+events_unbound10:17:414
3308995993836,2cyclictest3535740-21kworker/u16:4+events_unbound09:20:244
3308995993836,2cyclictest3516363-21kworker/u16:1+flush-8:009:53:284
3309001993735,1cyclictest3676850-21strings09:58:097
3309001993733,3cyclictest3961389-21/usr/sbin/munin11:58:037
3309000993735,2cyclictest3814475-21kworker/u16:4+events_unbound11:37:336
3309000993735,2cyclictest3618297-21kworker/u16:2+flush-8:009:43:096
3308997993735,2cyclictest3516363-21kworker/u16:1+flush-8:010:08:005
3308995993735,2cyclictest3935150-21kworker/u16:2+events_unbound12:04:244
3308995993735,2cyclictest3935150-21kworker/u16:2+events_unbound12:04:244
3308995993735,2cyclictest3863585-21kworker/u16:5+events_unbound11:18:094
3308995993735,2cyclictest3861668-21kworker/u16:1+events_unbound11:16:474
3308995993735,2cyclictest3836881-21kworker/u16:0+events_unbound11:07:554
3308995993735,2cyclictest3727958-21kworker/u16:0+events_unbound10:30:244
3309001993635,0cyclictest0-21swapper/711:19:277
3309001993634,1cyclictest3916908-21kthreadcore11:38:027
3309001993633,2cyclictest3615841-21ntpq09:33:117
3309001993633,2cyclictest3525387-21ntp_states08:53:107
3309000993634,2cyclictest3863585-21kworker/u16:5+events_unbound11:18:116
3308997993633,2cyclictest3935150-21kworker/u16:2+flush-8:012:17:595
3308995993634,2cyclictest3863164-21kworker/u16:3+flush-8:011:48:154
3308995993634,2cyclictest3727958-21kworker/u16:0+events_unbound10:57:084
3308995993634,2cyclictest3567767-21kworker/u16:0+events_unbound09:35:484
3309000993533,2cyclictest3935150-21kworker/u16:2+events_unbound12:30:516
3309000993533,2cyclictest3909672-21kworker/u16:0+events_unbound11:41:536
3309000993533,2cyclictest3680132-21kworker/u16:5+flush-8:010:47:416
3309000993533,2cyclictest3680132-21kworker/u16:5+flush-8:010:47:416
3309000993533,1cyclictest3409640-21kworker/u16:4+events_unbound08:48:016
3309000993533,1cyclictest3409640-21kworker/u16:4+events_unbound08:48:016
3309000993532,2cyclictest3400098-21kworker/u16:2+flush-8:008:22:576
3308995993533,2cyclictest3935150-21kworker/u16:2+events_unbound12:20:434
3308995993533,2cyclictest3400098-21kworker/u16:2+flush-8:008:42:574
3309001993432,1cyclictest3396034-21kthreadcore07:48:027
3309001993432,1cyclictest0-21swapper/709:40:127
3309001993432,1cyclictest0-21swapper/708:43:147
3309000993432,2cyclictest3409640-21kworker/u16:4+events_unbound08:43:046
3309000993432,2cyclictest3341696-21kworker/u16:1+flush-8:007:22:426
3308997993432,2cyclictest3935150-21kworker/u16:2+flush-8:012:08:095
3308997993431,3cyclictest3341696-21kworker/u16:1+flush-8:007:53:005
3308995993432,2cyclictest3935150-21kworker/u16:2+events_unbound12:34:044
3308995993432,2cyclictest3740455-21kworker/u16:1+events_unbound10:47:124
3308995993432,2cyclictest3740455-21kworker/u16:1+events_unbound10:47:124
3308995993432,2cyclictest3680132-21kworker/u16:5+events_unbound10:24:244
3308995993432,2cyclictest3680132-21kworker/u16:5+events_unbound10:21:324
3308995993432,2cyclictest3618297-21kworker/u16:2+events_unbound09:39:084
3309001993332,0cyclictest0-21swapper/712:08:177
3309001993332,0cyclictest0-21swapper/711:32:197
3309001993332,0cyclictest0-21swapper/710:47:197
3309001993332,0cyclictest0-21swapper/710:47:197
3309001993332,0cyclictest0-21swapper/709:30:007
3309001993332,0cyclictest0-21swapper/709:07:597
3309000993331,2cyclictest3922661-21kworker/u16:1+events_unbound12:15:526
3309000993331,2cyclictest3922661-21kworker/u16:1+events_unbound12:00:086
3309000993331,2cyclictest3863164-21kworker/u16:3+events_unbound11:28:526
3309000993331,2cyclictest3814475-21kworker/u16:4+events_unbound11:08:136
3309000993331,2cyclictest3680132-21kworker/u16:5+events_unbound10:49:316
3309000993330,3cyclictest3995876-21kworker/u16:0+flush-8:012:23:046
3308997993331,2cyclictest3680131-21kworker/u16:4+flush-8:010:23:205
3308995993331,2cyclictest3935150-21kworker/u16:2+events_unbound11:45:484
3308995993331,2cyclictest3567767-21kworker/u16:0+events_unbound09:29:294
3308995993331,2cyclictest3468449-21kworker/u16:0+flush-8:008:27:584
3309001993231,0cyclictest0-21swapper/711:56:357
3309001993231,0cyclictest0-21swapper/711:07:127
3309001993231,0cyclictest0-21swapper/710:34:167
3309001993231,0cyclictest0-21swapper/710:24:577
3309001993230,1cyclictest3545734-21diskmemload10:53:357
330900199320,31cyclictest3473210-21kthreadcore08:28:037
3309000993230,2cyclictest3863164-21kworker/u16:3+events_unbound12:08:126
3309000993230,2cyclictest3567767-21kworker/u16:0+events_unbound09:23:186
3309000993230,2cyclictest3567767-21kworker/u16:0+events_unbound09:23:186
3309000993230,2cyclictest3400098-21kworker/u16:2+flush-8:008:57:566
3308995993230,2cyclictest3814475-21kworker/u16:4+events_unbound11:24:084
3308995993230,2cyclictest3814475-21kworker/u16:4+events_unbound11:24:084
3308995993230,2cyclictest3516363-21kworker/u16:1+flush-8:009:48:144
3308995993230,2cyclictest3400098-21kworker/u16:2+flush-8:008:03:094
3308995993230,2cyclictest3400098-21kworker/u16:2+events_unbound08:08:094
3309001993128,2cyclictest3482399-21kthreadcore08:33:037
3309000993129,2cyclictest3863164-21kworker/u16:3+events_unbound11:51:326
3309000993129,2cyclictest3836881-21kworker/u16:0+flush-8:011:04:446
3309000993129,2cyclictest3680131-21kworker/u16:4+events_unbound10:10:206
3309000993128,2cyclictest3727958-21kworker/u16:0+flush-8:010:33:496
3308997993128,2cyclictest3922661-21kworker/u16:1+flush-8:012:12:475
3308997993127,3cyclictest3516363-21kworker/u16:1+flush-8:008:58:085
3308995993129,2cyclictest3995876-21kworker/u16:0+events_unbound12:14:454
3308995993129,2cyclictest3863164-21kworker/u16:3+events_unbound11:53:114
3308995993129,2cyclictest3567767-21kworker/u16:0+events_unbound10:06:554
3308995993129,2cyclictest3567767-21kworker/u16:0+events_unbound10:06:554
3308995993129,2cyclictest3409640-21kworker/u16:4+flush-8:008:18:164
3308995993129,2cyclictest3400098-21kworker/u16:2+events_unbound08:23:064
3309001993029,0cyclictest0-21swapper/711:10:457
3309001993029,0cyclictest0-21swapper/708:23:367
3309001993027,2cyclictest4021155-21sh12:21:147
3309001993026,2cyclictest3725865-21ntp_states10:18:117
3309000993028,2cyclictest3814475-21kworker/u16:4+events_unbound11:13:516
3309000993028,2cyclictest3814475-21kworker/u16:4+events_unbound11:01:076
3308995993028,2cyclictest3909672-21kworker/u16:0+events_unbound11:41:384
3309001992928,0cyclictest0-21swapper/710:40:377
3309001992928,0cyclictest0-21swapper/708:12:377
3309000992928,1cyclictest3567767-21kworker/u16:0+events_unbound09:34:446
3309000992927,2cyclictest3863164-21kworker/u16:3+events_unbound11:54:286
3309000992927,2cyclictest3727958-21kworker/u16:0+events_unbound10:28:526
3308995992927,2cyclictest3288455-21kworker/u16:0+flush-8:008:13:034
3309001992827,0cyclictest0-21swapper/709:16:277
3309000992826,2cyclictest3680132-21kworker/u16:5+events_unbound10:41:406
3309000992826,2cyclictest3567767-21kworker/u16:0+events_unbound09:56:536
3308995992826,2cyclictest3298790-21kworker/u16:2+events_unbound07:09:534
3308995992826,2cyclictest3288455-21kworker/u16:0+events_unbound07:20:524
3308995992825,2cyclictest3361039-21kworker/u16:2+events_unbound07:32:454
3309001992726,0cyclictest0-21swapper/711:46:327
3309001992726,0cyclictest0-21swapper/711:01:187
3309001992726,0cyclictest0-21swapper/710:51:187
3309000992725,2cyclictest3922661-21kworker/u16:1+flush-8:011:43:116
3309000992725,2cyclictest3863164-21kworker/u16:3+events_unbound11:23:476
3309000992725,2cyclictest3863164-21kworker/u16:3+events_unbound11:23:476
3308995992725,2cyclictest3400098-21kworker/u16:2+events_unbound08:34:524
3308995992725,2cyclictest3309187-21kworker/u16:3+flush-8:007:12:524
3308995992725,2cyclictest3309187-21kworker/u16:3+flush-8:007:12:524
3308995992725,2cyclictest3288455-21kworker/u16:0+events_unbound07:48:544
3309001992625,0cyclictest0-21swapper/712:05:207
3309001992625,0cyclictest0-21swapper/712:05:207
3309000992624,2cyclictest3526332-21kworker/u16:3+events_unbound09:09:006
3309000992624,2cyclictest3429276-21kworker/u16:1+events_unbound08:16:576
3309001992524,0cyclictest0-21swapper/712:26:397
3309001992524,0cyclictest0-21swapper/711:35:287
3309001992524,0cyclictest0-21swapper/711:25:127
3309001992524,0cyclictest0-21swapper/711:25:127
3309001992524,0cyclictest0-21swapper/708:38:157
3309001992524,0cyclictest0-21swapper/707:33:577
3309000992523,2cyclictest3680132-21kworker/u16:5+flush-8:010:13:526
3309000992523,2cyclictest3677877-21kworker/u16:2+events_unbound10:01:206
3308997992523,2cyclictest3409640-21kworker/u16:4+flush-8:008:16:415
3308997992522,2cyclictest3922661-21kworker/u16:1+flush-8:011:48:115
3308997992522,2cyclictest3814475-21kworker/u16:4+events_unbound11:37:595
3308997992522,2cyclictest3448476-21kworker/u16:3+flush-8:008:48:085
3308997992522,2cyclictest3448476-21kworker/u16:3+flush-8:008:48:085
37954812240,1sleep50-21swapper/510:48:045
3309001992423,0cyclictest0-21swapper/712:15:027
3309001992423,0cyclictest0-21swapper/710:05:317
3309001992423,0cyclictest0-21swapper/710:05:317
3309001992419,4cyclictest3351624-21latency_hist07:27:437
3309000992421,2cyclictest3288455-21kworker/u16:0+events_unbound07:43:086
3308997992422,2cyclictest3680131-21kworker/u16:4+flush-8:010:17:375
330866922413,8sleep60-21swapper/607:07:216
3309001992322,0cyclictest0-21swapper/711:48:387
3309001992322,0cyclictest0-21swapper/708:58:407
3309000992321,2cyclictest3935150-21kworker/u16:2+events_unbound12:20:296
3309000992321,2cyclictest3680132-21kworker/u16:5+flush-8:010:18:086
3308997992321,2cyclictest3922661-21kworker/u16:1+flush-8:012:22:585
3308997992320,3cyclictest3288455-21kworker/u16:0+flush-8:007:17:555
3308995992321,2cyclictest3516363-21kworker/u16:1+events_unbound08:57:594
3309001992219,2cyclictest3576462-21cut09:18:057
3309000992220,2cyclictest3618297-21kworker/u16:2+events_unbound09:39:176
3309000992220,2cyclictest3341696-21kworker/u16:1+events_unbound07:53:206
3308997992220,2cyclictest3935150-21kworker/u16:2+flush-8:012:03:145
3308997992220,2cyclictest3935150-21kworker/u16:2+flush-8:012:03:145
3308997992220,2cyclictest3448476-21kworker/u16:3+flush-8:008:43:115
3308995992220,2cyclictest3448476-21kworker/u16:3+events_unbound08:47:444
3308995992220,2cyclictest3448476-21kworker/u16:3+events_unbound08:47:444
3309001992120,0cyclictest0-21swapper/709:44:507
3309001992116,3cyclictest3515656-21ntp_states08:48:097
3309001992116,3cyclictest3515656-21ntp_states08:48:097
3309000992119,2cyclictest3400098-21kworker/u16:2+events_unbound07:58:196
3308997992119,2cyclictest4023690-21kworker/u16:3+flush-8:012:33:125
3308997992118,2cyclictest3535740-21kworker/u16:4+flush-8:009:27:485
3309000992018,2cyclictest3448476-21kworker/u16:3+flush-8:008:37:586
3309000992017,2cyclictest3400098-21kworker/u16:2+events_unbound08:07:526
3309000992017,2cyclictest3341696-21kworker/u16:1+flush-8:007:22:526
3308997992018,2cyclictest3813690-21kworker/u16:3+events_unbound11:02:545
3308995992018,2cyclictest3288455-21kworker/u16:0+events_unbound07:45:334
3309001991918,0cyclictest0-21swapper/710:13:517
3309001991917,1cyclictest0-21swapper/712:33:337
3309000991917,2cyclictest3288455-21kworker/u16:0+events_unbound07:40:526
3308997991916,2cyclictest3567767-21kworker/u16:0+events_unbound09:47:445
3309001991817,0cyclictest0-21swapper/707:59:447
3309000991816,2cyclictest3361039-21kworker/u16:2+flush-8:007:33:086
3309000991816,2cyclictest3309187-21kworker/u16:3+events_unbound07:08:116
3308997991816,2cyclictest3288455-21kworker/u16:0+flush-8:007:17:375
3308997991816,2cyclictest3288455-21kworker/u16:0+flush-8:007:17:375
3308995991815,2cyclictest3501144-21kworker/u16:0+events_unbound08:52:584
3309001991716,0cyclictest0-21swapper/707:13:487
3309001991716,0cyclictest0-21swapper/707:13:487
3309000991715,2cyclictest3526332-21kworker/u16:3+flush-8:009:07:376
3309001991615,0cyclictest0-21swapper/709:03:327
3309001991615,0cyclictest0-21swapper/708:21:317
3309001991613,2cyclictest125-21kswapd008:16:397
3308997991614,2cyclictest4023690-21kworker/u16:3+events_unbound12:28:085
3308997991614,2cyclictest3863164-21kworker/u16:3+flush-8:011:23:245
3308997991614,2cyclictest3863164-21kworker/u16:3+flush-8:011:23:245
3308997991614,2cyclictest3644324-21kworker/u16:3+events_unbound09:58:445
3308997991614,2cyclictest3341696-21kworker/u16:1+events_unbound07:33:055
3308997991613,2cyclictest3922661-21kworker/u16:1+events_unbound11:52:445
3309001991514,0cyclictest0-21swapper/707:20:227
3309001991512,2cyclictest1302-21snmpd07:41:197
3308997991513,2cyclictest3644324-21kworker/u16:3+flush-8:010:03:205
3308997991513,2cyclictest3644324-21kworker/u16:3+flush-8:010:03:205
3309001991413,0cyclictest0-21swapper/708:04:057
330900199140,13cyclictest0-21swapper/707:28:087
3308997991413,1cyclictest0-21swapper/509:09:065
3308997991412,2cyclictest3567767-21kworker/u16:0+events_unbound09:43:045
3308997991411,2cyclictest3863164-21kworker/u16:3+flush-8:011:57:425
3308997991410,3cyclictest3516363-21kworker/u16:1+flush-8:009:52:475
3308995991412,2cyclictest3448476-21kworker/u16:3+events_unbound08:40:284
3309001991312,0cyclictest0-21swapper/707:08:327
330900199130,11cyclictest4037380-21cut12:28:017
3309000991311,2cyclictest3309187-21kworker/u16:3+events_unbound07:13:536
3309000991311,2cyclictest3309187-21kworker/u16:3+events_unbound07:13:536
330899799139,3cyclictest3516363-21kworker/u16:1+flush-8:009:37:475
3308997991312,1cyclictest0-21swapper/509:24:525
3308997991312,1cyclictest0-21swapper/509:24:525
3308997991312,1cyclictest0-21swapper/509:16:595
3308997991311,2cyclictest3400098-21kworker/u16:2+flush-8:008:32:385
3308997991311,2cyclictest0-21swapper/511:08:085
330899799130,13cyclictest0-21swapper/510:54:355
330899799130,13cyclictest0-21swapper/510:22:345
330900199129,2cyclictest0-21swapper/707:52:587
3308997991211,1cyclictest0-21swapper/511:21:135
3308997991211,1cyclictest0-21swapper/507:58:095
3308997991210,2cyclictest3361039-21kworker/u16:2+events_unbound07:38:135
330899799120,1cyclictest0-21swapper/509:05:385
330899799120,1cyclictest0-21swapper/508:03:405
330899799120,1cyclictest0-21swapper/507:30:245
3308995991210,2cyclictest3288455-21kworker/u16:0+events_unbound07:39:244
3309000991110,1cyclictest0-21swapper/607:29:196
3308997991110,1cyclictest0-21swapper/510:58:415
3308997991110,1cyclictest0-21swapper/509:34:205
3308997991110,1cyclictest0-21swapper/508:35:125
330899799110,1cyclictest0-21swapper/508:56:395
330899799110,11cyclictest0-21swapper/508:20:145
330899599119,2cyclictest3341696-21kworker/u16:1+events_unbound07:27:134
330900099109,1cyclictest0-21swapper/608:36:106
330899799109,1cyclictest0-21swapper/511:34:475
330899799108,2cyclictest3288455-21kworker/u16:0+events_unbound07:48:135
330899799100,0cyclictest0-21swapper/508:26:135
330899599108,2cyclictest3341696-21kworker/u16:1+events_unbound07:31:294
33089979990,7cyclictest0-21swapper/509:21:385
33089979987,1cyclictest0-21swapper/510:46:515
33089979987,1cyclictest0-21swapper/510:46:515
33089979986,2cyclictest3448476-21kworker/u16:3+flush-8:008:38:085
33089979983,4cyclictest3348171-21cut07:23:035
33089979973,3cyclictest3314041-21cut07:08:015
33090009960,6cyclictest0-21swapper/608:53:056
33089979964,2cyclictest3814475-21kworker/u16:4+flush-8:011:12:475
33089979963,2cyclictest38979032sleep511:29:085
33089979961,4cyclictest3390366-21turbostat07:47:425
33089979960,3cyclictest0-21swapper/508:10:225
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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