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2026-05-19 - 20:32
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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 May 19, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31908182940,1sleep40-21swapper/408:18:014
3049368995452,2cyclictest3058918-21kworker/u16:3+flush-8:008:27:575
3049368995250,2cyclictest3110639-21kworker/u16:2+flush-8:008:18:125
3049368995149,2cyclictest3502773-21kworker/u16:0+flush-8:011:12:595
3049368994947,2cyclictest3273507-21kworker/u16:2+flush-8:009:02:575
35890522470,1sleep60-21swapper/611:12:586
3049368994745,2cyclictest3575707-21kworker/u16:4+flush-8:012:08:125
304892924736,7sleep50-21swapper/507:05:365
3049368994442,2cyclictest3648842-21kworker/u16:2+events_unbound11:53:205
3049368994341,2cyclictest3758097-21kworker/u16:2+events_unbound12:37:165
3049368994341,2cyclictest3709548-21kworker/u16:1+flush-8:012:23:075
3049368994341,2cyclictest3502774-21kworker/u16:3+events_unbound11:07:575
3049368994341,2cyclictest3429566-21kworker/u16:2+flush-8:010:18:115
304894824316,7sleep40-21swapper/407:05:514
3049368994241,1cyclictest3319952-21kworker/u16:4+flush-8:010:22:595
3049368994238,2cyclictest3319952-21kworker/u16:4+events_unbound10:03:165
37286012410,0sleep73728603-21cut12:08:057
3049371994139,2cyclictest3429566-21kworker/u16:2+flush-8:010:38:106
30404722403,31sleep70-21swapper/707:02:577
3049368993937,2cyclictest3575707-21kworker/u16:4+events_unbound11:51:485
3049368993937,2cyclictest3429566-21kworker/u16:2+events_unbound10:34:405
3049368993937,2cyclictest3429566-21kworker/u16:2+events_unbound10:16:125
3049368993937,2cyclictest3319952-21kworker/u16:4+flush-8:009:28:125
3049368993937,2cyclictest3099948-21kworker/u16:0+flush-8:007:48:105
3049368993936,2cyclictest3058918-21kworker/u16:3+events_unbound09:37:445
3049373993836,1cyclictest3589010-21perl11:12:587
3049368993836,2cyclictest3575707-21kworker/u16:4+flush-8:012:02:575
3049368993836,2cyclictest3502773-21kworker/u16:0+events_unbound10:46:045
3049368993836,2cyclictest3319952-21kworker/u16:4+events_unbound09:25:335
3049368993836,2cyclictest3307808-21kworker/u16:0+events_unbound09:43:165
3049368993836,2cyclictest3286957-21kworker/u16:1+events_unbound09:19:285
3049368993836,2cyclictest3273507-21kworker/u16:2+events_unbound09:13:575
3049368993834,3cyclictest3099948-21kworker/u16:0+flush-8:008:03:085
3049368993735,2cyclictest3502773-21kworker/u16:0+events_unbound11:02:085
3049368993735,2cyclictest3502773-21kworker/u16:0+events_unbound10:54:175
3049368993735,2cyclictest3429566-21kworker/u16:2+events_unbound10:38:155
3049368993735,2cyclictest3429565-21kworker/u16:1+events_unbound10:29:165
3049368993735,2cyclictest3429565-21kworker/u16:1+events_unbound10:29:165
3049368993735,2cyclictest3319952-21kworker/u16:4+events_unbound09:52:295
3049368993735,2cyclictest3319952-21kworker/u16:4+events_unbound09:52:295
3049368993634,2cyclictest3770324-21kworker/u16:3+events_unbound12:28:445
3049368993634,2cyclictest3575707-21kworker/u16:4+events_unbound12:17:125
3049368993634,2cyclictest3502773-21kworker/u16:0+events_unbound12:00:045
3049368993634,2cyclictest3502773-21kworker/u16:0+events_unbound10:50:105
3049368993634,2cyclictest3319952-21kworker/u16:4+flush-8:010:08:025
3049368993634,2cyclictest3319952-21kworker/u16:4+flush-8:009:58:085
3049368993533,2cyclictest3648842-21kworker/u16:2+events_unbound11:47:365
3049368993533,2cyclictest3634493-21kworker/u16:1+events_unbound11:30:365
3049368993533,2cyclictest3574739-21kworker/u16:1+events_unbound11:20:495
3049368993533,2cyclictest3502774-21kworker/u16:3+events_unbound11:06:125
3049368993533,2cyclictest3502773-21kworker/u16:0+events_unbound11:40:205
3049368993533,2cyclictest3273507-21kworker/u16:2+events_unbound09:09:105
3049368993533,2cyclictest3058918-21kworker/u16:3+flush-8:008:47:565
3049368993533,2cyclictest3058918-21kworker/u16:3+events_unbound09:35:085
3049368993432,2cyclictest3575707-21kworker/u16:4+events_unbound11:22:565
3049368993432,2cyclictest3502773-21kworker/u16:0+events_unbound11:34:285
3049368993432,2cyclictest3307808-21kworker/u16:0+events_unbound09:56:165
3049368993331,2cyclictest3575707-21kworker/u16:4+events_unbound12:18:285
33176262320,1chrt3317624-21ssh09:18:387
3049368993229,2cyclictest3099948-21kworker/u16:0+events_unbound07:37:465
3049368993229,2cyclictest3099948-21kworker/u16:0+events_unbound07:37:465
3049368993129,2cyclictest3058918-21kworker/u16:3+events_unbound08:58:025
3049371993029,1cyclictest3502773-21kworker/u16:0+events_unbound12:08:036
32219202290,1chrt3221921-21kthreadcore08:33:037
3049373992924,4cyclictest3624399-21latency_hist11:27:427
3049371992927,2cyclictest3502773-21kworker/u16:0+flush-8:011:42:576
35397402280,0sleep73539742-21grep10:52:557
3049373992827,0cyclictest0-21swapper/712:29:547
3049373992827,0cyclictest0-21swapper/711:32:317
3049373992827,0cyclictest0-21swapper/709:01:097
3049373992825,2cyclictest124-21kswapd010:27:547
3049373992825,2cyclictest124-21kswapd010:27:547
3049371992826,2cyclictest3099948-21kworker/u16:0+flush-8:007:43:136
3049368992826,2cyclictest3058918-21kworker/u16:3+flush-8:008:08:105
32924862270,1chrt3292489-21tr09:08:127
3049373992726,0cyclictest0-21swapper/711:08:087
3049373992726,0cyclictest0-21swapper/710:08:567
3049373992723,2cyclictest3791487-21ntpq12:33:127
3049373992624,1cyclictest0-21swapper/710:43:267
3049373992624,1cyclictest0-21swapper/708:19:447
3049368992624,2cyclictest3058918-21kworker/u16:3+events_unbound08:42:375
3049373992524,0cyclictest0-21swapper/708:01:177
3049373992520,4cyclictest3368707-21latency_hist09:42:427
3049371992522,2cyclictest3273507-21kworker/u16:2+flush-8:009:13:036
3049371992521,3cyclictest3099948-21kworker/u16:0+flush-8:007:58:006
3049368992523,2cyclictest3058918-21kworker/u16:3+events_unbound08:13:095
3049368992523,2cyclictest3058918-21kworker/u16:3+events_unbound07:34:585
33771582240,1chrt3377159-21grep09:43:067
3049373992423,0cyclictest0-21swapper/711:58:587
3049373992423,0cyclictest0-21swapper/710:14:487
3049373992423,0cyclictest0-21swapper/709:48:297
3049373992423,0cyclictest0-21swapper/709:48:297
3049373992423,0cyclictest0-21swapper/707:54:177
3049373992423,0cyclictest0-21swapper/707:49:367
3049373992423,0cyclictest0-21swapper/707:30:467
3049371992422,2cyclictest3709548-21kworker/u16:1+flush-8:012:21:006
3049368992422,2cyclictest3049138-21kworker/u16:1+events_unbound07:22:445
3049373992322,0cyclictest0-21swapper/710:03:377
3049373992322,0cyclictest0-21swapper/708:40:177
3049373992322,0cyclictest0-21swapper/708:27:017
3049373992322,0cyclictest0-21swapper/707:44:547
3049371992321,2cyclictest3575707-21kworker/u16:4+flush-8:011:32:376
3049371992321,2cyclictest3058918-21kworker/u16:3+flush-8:009:38:106
3049368992321,2cyclictest3206923-21kworker/u16:1+events_unbound08:45:515
3049368992321,2cyclictest3110639-21kworker/u16:2+flush-8:007:44:575
304899822313,7sleep60-21swapper/607:06:336
3049373992221,0cyclictest0-21swapper/711:43:287
3049373992221,0cyclictest0-21swapper/709:16:367
3049373992217,4cyclictest3478308-21latency_hist10:27:427
3049373992217,3cyclictest3674722-21kthreadcore11:47:597
3049368992220,2cyclictest3099948-21kworker/u16:0+flush-8:007:58:105
3049368992220,2cyclictest3058918-21kworker/u16:3+events_unbound08:23:465
3049373992120,0cyclictest0-21swapper/712:23:237
3049373992120,0cyclictest0-21swapper/711:40:087
3049373992120,0cyclictest0-21swapper/709:53:457
3049373992120,0cyclictest0-21swapper/709:06:147
3049373992120,0cyclictest0-21swapper/708:04:297
3049373992120,0cyclictest0-21swapper/707:10:487
3049373992119,1cyclictest3611293-21ssh11:21:017
3049371992119,2cyclictest3429566-21kworker/u16:2+events_unbound10:43:106
3049368992119,2cyclictest3049138-21kworker/u16:1+events_unbound07:22:105
3049373992019,0cyclictest0-21swapper/708:47:567
3049373992019,0cyclictest0-21swapper/708:43:367
3049368992018,2cyclictest3058918-21kworker/u16:3+events_unbound08:55:515
3049368992018,2cyclictest3049138-21kworker/u16:1+flush-8:007:13:135
3049368992018,2cyclictest3020823-21kworker/u16:0+events_unbound07:08:125
3049373991918,0cyclictest0-21swapper/710:48:257
3049373991918,0cyclictest0-21swapper/709:32:497
3049373991918,0cyclictest0-21swapper/708:54:447
3049373991918,0cyclictest0-21swapper/707:17:137
3049373991914,4cyclictest3563456-21latency_hist11:02:417
3049373991817,0cyclictest0-21swapper/709:28:137
3049373991817,0cyclictest0-21swapper/708:16:037
3049373991815,2cyclictest3695870-21ssh11:55:097
3049371991816,2cyclictest3058918-21kworker/u16:3+events_unbound09:23:146
3049368991816,2cyclictest3058918-21kworker/u16:3+flush-8:008:34:375
3049373991714,2cyclictest3414728-21timerwakeupswit09:58:157
3049371991715,2cyclictest3307808-21kworker/u16:0+flush-8:009:57:526
3049373991615,0cyclictest0-21swapper/712:14:417
3049373991615,0cyclictest0-21swapper/707:33:117
3049373991614,1cyclictest3719982-21ssh12:04:477
3049373991614,1cyclictest3574091-21ssh11:04:587
3049371991613,2cyclictest3110639-21kworker/u16:2+flush-8:007:47:476
3049368991613,2cyclictest3049138-21kworker/u16:1+events_unbound07:27:525
3049373991514,0cyclictest0-21swapper/707:22:127
3049371991513,2cyclictest3206923-21kworker/u16:1+flush-8:008:33:076
3049371991512,2cyclictest3502773-21kworker/u16:0+events_unbound12:33:166
3049368991513,2cyclictest3099948-21kworker/u16:0+flush-8:007:55:015
3049373991413,0cyclictest0-21swapper/709:24:297
3049373991413,0cyclictest0-21swapper/708:29:047
3049373991413,0cyclictest0-21swapper/707:41:437
3049373991413,0cyclictest0-21swapper/707:41:437
3049373991411,2cyclictest0-21swapper/710:18:117
304937399140,1cyclictest0-21swapper/707:23:067
3049371991413,1cyclictest0-21swapper/607:37:596
3049371991413,1cyclictest0-21swapper/607:37:596
3049371991410,4cyclictest0-21swapper/610:11:526
3049364991414,0cyclictest0-21swapper/410:00:494
3049364991413,1cyclictest0-21swapper/412:30:274
3049364991413,1cyclictest0-21swapper/411:09:244
3049364991413,1cyclictest0-21swapper/410:31:444
3049364991413,1cyclictest0-21swapper/410:31:444
3049364991413,1cyclictest0-21swapper/408:42:094
3049364991412,2cyclictest0-21swapper/411:17:094
304936499140,1cyclictest0-21swapper/411:35:354
304936499140,14cyclictest0-21swapper/412:07:354
304936499140,14cyclictest0-21swapper/409:10:134
304937399139,3cyclictest1234-21snmpd08:10:027
3049373991310,2cyclictest0-21swapper/711:33:047
3049371991312,1cyclictest0-21swapper/612:24:086
3049371991312,1cyclictest0-21swapper/610:52:046
3049371991312,1cyclictest0-21swapper/610:29:416
3049371991312,1cyclictest0-21swapper/610:29:416
3049371991312,1cyclictest0-21swapper/609:31:216
3049371991311,2cyclictest3429566-21kworker/u16:2+flush-8:010:58:186
3049371991311,2cyclictest3307808-21kworker/u16:0+events_unbound09:53:106
3049364991312,1cyclictest631rcuc/410:36:274
3049364991312,1cyclictest0-21swapper/410:15:294
3049364991312,1cyclictest0-21swapper/410:08:424
3049364991312,1cyclictest0-21swapper/409:22:124
3049364991312,1cyclictest0-21swapper/408:28:074
304936499130,0cyclictest0-21swapper/410:49:514
304936499130,0cyclictest0-21swapper/409:39:234
36878742120,0sleep40-21swapper/411:53:034
304937399129,2cyclictest1234-21snmpd10:33:307
304936499129,1cyclictest201rcu_preempt11:28:034
3049364991211,1cyclictest631rcuc/409:33:104
3049373991110,1cyclictest3757212-21ssh12:21:077
304937199119,2cyclictest86-21ksoftirqd/610:19:416
304937199119,2cyclictest3575707-21kworker/u16:4+events_unbound12:02:416
304937199119,2cyclictest3099948-21kworker/u16:0+flush-8:008:58:146
304937199119,2cyclictest3058918-21kworker/u16:3+flush-8:007:32:596
304937199119,2cyclictest3049138-21kworker/u16:1+events_unbound07:17:586
304937199117,3cyclictest3049138-21kworker/u16:1+flush-8:007:12:436
3049371991110,1cyclictest0-21swapper/608:45:476
3049371991110,1cyclictest0-21swapper/607:55:486
304937199110,11cyclictest0-21swapper/609:43:346
304936499119,1cyclictest0-21swapper/407:43:024
304936499118,2cyclictest641ktimers/407:28:064
304936499118,1cyclictest201rcu_preempt11:39:384
3049364991110,1cyclictest3575707-21kworker/u16:4-flush-8:012:23:164
3049364991110,1cyclictest0-21swapper/408:55:244
304936499110,11cyclictest0-21swapper/407:40:494
304936499110,11cyclictest0-21swapper/407:40:494
304936499110,11cyclictest0-21swapper/407:08:404
304937399104,5cyclictest3503577-21expr10:37:547
304937199109,1cyclictest0-21swapper/608:32:046
304937199108,2cyclictest86-21ksoftirqd/611:33:066
304937199108,2cyclictest2335293-21kworker/u16:2+flush-8:007:12:586
304937199107,2cyclictest3110639-21kworker/u16:2+flush-8:008:18:086
304937199107,2cyclictest3058918-21kworker/u16:3+events_unbound08:08:126
304937199106,3cyclictest3095474-21kthreadcore07:28:006
304936499109,1cyclictest3273507-21kworker/u16:2-events_unbound09:15:574
304936499109,1cyclictest0-21swapper/410:20:274
304936499109,1cyclictest0-21swapper/407:18:074
304936499109,1cyclictest0-21swapper/407:12:444
304936499107,1cyclictest681rcuog/411:18:144
304936499107,1cyclictest201rcu_preempt11:04:014
304936499107,1cyclictest201rcu_preempt09:43:014
304936499105,3cyclictest0-21swapper/411:23:024
30493719997,2cyclictest86-21ksoftirqd/612:31:486
30493719997,2cyclictest86-21ksoftirqd/612:13:346
30493719997,2cyclictest86-21ksoftirqd/612:03:076
30493719997,2cyclictest86-21ksoftirqd/611:54:276
30493719997,2cyclictest86-21ksoftirqd/611:24:466
30493719997,2cyclictest86-21ksoftirqd/611:07:286
30493719997,2cyclictest86-21ksoftirqd/610:54:536
30493719997,2cyclictest86-21ksoftirqd/610:33:296
30493719997,2cyclictest86-21ksoftirqd/610:23:286
30493719997,2cyclictest86-21ksoftirqd/609:35:346
30493719997,2cyclictest86-21ksoftirqd/609:19:346
30493719997,2cyclictest3502774-21kworker/u16:3+flush-8:011:08:176
30493719996,2cyclictest3082645-21cat07:22:566
30493649998,1cyclictest3429565-21kworker/u16:1-nfsiod10:25:224
30493649998,1cyclictest3099948-21kworker/u16:0-events_unbound07:48:034
30493649998,1cyclictest3058918-21kworker/u16:3-flush-8:008:47:584
30493649998,1cyclictest0-21swapper/412:17:534
30493649998,1cyclictest0-21swapper/410:02:484
30493649998,1cyclictest0-21swapper/409:29:564
30493649998,1cyclictest0-21swapper/408:58:214
30493649998,1cyclictest0-21swapper/408:44:594
30493649998,1cyclictest0-21swapper/408:13:034
30493649998,1cyclictest0-21swapper/408:00:204
30493649998,1cyclictest0-21swapper/407:33:024
30493649998,1cyclictest0-21swapper/407:22:584
30493649995,1cyclictest681rcuog/412:10:104
30493649995,1cyclictest681rcuog/411:57:424
30493649995,1cyclictest681rcuog/409:52:554
30493649995,1cyclictest681rcuog/409:51:034
30493649995,1cyclictest681rcuog/409:51:034
30493649995,1cyclictest0-21swapper/408:08:004
30493649995,1cyclictest0-21swapper/408:02:534
30493649994,2cyclictest0-21swapper/411:00:004
30493649992,3cyclictest0-21swapper/408:23:014
30493649991,4cyclictest65-21ksoftirqd/410:45:594
30493719986,2cyclictest86-21ksoftirqd/611:49:406
30493719986,2cyclictest86-21ksoftirqd/611:19:506
30493719986,2cyclictest86-21ksoftirqd/610:13:596
30493719986,2cyclictest86-21ksoftirqd/610:05:016
30493719986,2cyclictest86-21ksoftirqd/609:07:546
30493719986,2cyclictest86-21ksoftirqd/608:48:066
30493719983,5cyclictest2-21kthreadd09:48:016
30493719983,5cyclictest2-21kthreadd09:48:016
30493649987,1cyclictest0-21swapper/412:33:004
30493649987,1cyclictest0-21swapper/412:12:434
30493649987,1cyclictest0-21swapper/411:47:514
30493649987,1cyclictest0-21swapper/408:33:224
30493649985,1cyclictest0-21swapper/410:52:594
30493649984,1cyclictest681rcuog/407:53:024
30493649983,3cyclictest0-21swapper/409:03:044
30493649980,5cyclictest65-21ksoftirqd/409:22:564
30493649980,4cyclictest65-21ksoftirqd/411:43:004
30493649980,4cyclictest65-21ksoftirqd/410:38:014
30493719975,2cyclictest86-21ksoftirqd/609:02:576
30493719970,1cyclictest36588432sleep611:39:036
30493719965,1cyclictest0-21swapper/608:53:016
30493719961,1cyclictest0-21swapper/608:24:526
30493719961,1cyclictest0-21swapper/608:02:556
30493719960,6cyclictest0-21swapper/608:12:556
30493719960,1cyclictest0-21swapper/608:37:576
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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