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2026-01-03 - 00:42
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Fri Jan 02, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31809025847,8sleep60-21swapper/607:07:496
31809025847,8sleep60-21swapper/607:07:496
30888425721,30sleep70-21swapper/707:03:487
30888425721,30sleep70-21swapper/707:03:487
31809725241,7sleep40-21swapper/407:07:554
31809725241,7sleep40-21swapper/407:07:554
318460994441,2cyclictest3796678-21kworker/u16:1+events_unbound07:08:515
318460994038,2cyclictest691178-21kworker/u16:1+flush-8:010:33:355
31806024030,7sleep50-21swapper/507:07:235
31806024030,7sleep50-21swapper/507:07:235
318455993936,2cyclictest623060-21kworker/u16:2+events_unbound10:29:004
31846699350,34cyclictest327978-21latency_hist07:13:377
318466993226,5cyclictest904481-21latency_hist12:08:357
318460993230,2cyclictest865931-21kworker/u16:1+events_unbound11:53:315
318455993028,2cyclictest924284-21kworker/u16:1+events_unbound12:29:274
318455993028,2cyclictest304288-21kworker/u16:3+events_unbound08:18:314
318460992928,1cyclictest477456-21kworker/u16:2+events_unbound08:46:125
318460992927,2cyclictest802308-21kworker/u16:3+events_unbound12:29:055
318460992927,2cyclictest477456-21kworker/u16:2+events_unbound08:55:175
6816262280,0chrt0-21swapper/610:13:366
318466992726,0cyclictest0-21swapper/708:28:497
318466992723,3cyclictest5967-21gnome-software09:58:317
318460992725,2cyclictest836723-21kworker/u16:0+events_unbound11:46:475
318460992624,2cyclictest427952-21kworker/u16:4+events_unbound08:40:405
318455992624,2cyclictest720652-21kworker/u16:0+events_unbound10:43:304
318455992624,2cyclictest720652-21kworker/u16:0+events_unbound10:43:304
318466992524,0cyclictest0-21swapper/707:16:327
318460992523,2cyclictest802308-21kworker/u16:3+events_unbound12:37:165
318460992523,2cyclictest652474-21kworker/u16:4+events_unbound10:02:475
318460992523,2cyclictest623060-21kworker/u16:2+events_unbound11:29:065
318460992523,2cyclictest3796678-21kworker/u16:1+events_unbound08:08:435
318460992523,2cyclictest3045789-21kworker/u16:5+events_unbound07:26:115
318455992523,2cyclictest411091-21kworker/u16:2+events_unbound07:55:474
318455992523,2cyclictest3045789-21kworker/u16:5+events_unbound07:08:554
318460992422,2cyclictest427952-21kworker/u16:4+events_unbound08:51:485
318455992422,2cyclictest836723-21kworker/u16:0+events_unbound12:10:164
318455992422,2cyclictest652474-21kworker/u16:4+events_unbound10:13:164
318455992422,2cyclictest564792-21kworker/u16:2+events_unbound09:21:484
318466992318,4cyclictest962697-21latency_hist12:38:367
318460992321,2cyclictest3796678-21kworker/u16:1+events_unbound08:00:365
318455992321,2cyclictest865931-21kworker/u16:1+events_unbound11:53:334
318455992321,2cyclictest802308-21kworker/u16:3+events_unbound11:33:164
318460992220,2cyclictest545494-21kworker/u16:3+events_unbound09:22:125
318460992220,2cyclictest458381-21kworker/u16:0+events_unbound09:39:475
318455992220,2cyclictest802309-21kworker/u16:4+events_unbound11:16:164
318455992220,2cyclictest652474-21kworker/u16:4+events_unbound10:05:474
318455992220,2cyclictest427952-21kworker/u16:4+events_unbound08:29:284
318455992220,2cyclictest3796678-21kworker/u16:1+events_unbound07:49:104
318466992120,0cyclictest0-21swapper/711:19:007
318466992120,0cyclictest0-21swapper/708:18:517
318466992120,0cyclictest0-21swapper/708:18:517
318460992119,2cyclictest894849-21kworker/u16:1+events_unbound12:06:475
318460992119,2cyclictest865931-21kworker/u16:1+events_unbound11:53:575
318460992119,2cyclictest836723-21kworker/u16:0+events_unbound11:37:475
318460992119,2cyclictest623060-21kworker/u16:2+events_unbound09:53:325
318460992119,2cyclictest623060-21kworker/u16:2+events_unbound09:47:015
318460992119,2cyclictest427952-21kworker/u16:4+events_unbound09:10:465
318455992119,2cyclictest720652-21kworker/u16:0+events_unbound10:36:474
318455992119,2cyclictest623060-21kworker/u16:2+events_unbound11:36:124
318455992119,2cyclictest458381-21kworker/u16:0+flush-8:009:03:314
318455992119,2cyclictest458381-21kworker/u16:0+events_unbound09:39:294
318455992118,2cyclictest865931-21kworker/u16:1+events_unbound11:53:514
318455992118,2cyclictest427952-21kworker/u16:4+events_unbound08:48:414
318466992018,1cyclictest0-21swapper/712:18:557
318460992018,2cyclictest623060-21kworker/u16:2+events_unbound10:17:365
318460992018,2cyclictest584567-21kworker/u16:1+events_unbound09:33:385
318460992018,2cyclictest3796678-21kworker/u16:1+flush-8:008:24:035
318460992018,2cyclictest3796678-21kworker/u16:1+events_unbound07:52:165
318455992018,2cyclictest691178-21kworker/u16:1+events_unbound10:27:204
318455992018,2cyclictest458381-21kworker/u16:0+events_unbound09:46:124
318455992018,2cyclictest3045789-21kworker/u16:5+events_unbound07:27:484
318455992017,2cyclictest768746-21kworker/u16:1+flush-8:011:09:074
318455992017,2cyclictest652474-21kworker/u16:4+flush-8:010:13:464
318466991915,3cyclictest1267-21snmpd09:14:537
318460991917,2cyclictest836723-21kworker/u16:0+events_unbound11:41:155
318460991917,2cyclictest768746-21kworker/u16:1+events_unbound11:09:475
318460991917,2cyclictest720652-21kworker/u16:0+events_unbound11:02:475
318455991917,2cyclictest802308-21kworker/u16:3+events_unbound11:59:044
318455991917,2cyclictest427952-21kworker/u16:4+events_unbound09:09:474
318455991917,2cyclictest427952-21kworker/u16:4+events_unbound08:24:014
318455991917,2cyclictest3045789-21kworker/u16:5+events_unbound07:32:204
318466991817,0cyclictest0-21swapper/711:03:557
318460991816,2cyclictest720652-21kworker/u16:0+events_unbound10:44:525
318460991816,2cyclictest623060-21kworker/u16:2+events_unbound10:19:295
318460991816,2cyclictest584567-21kworker/u16:1+events_unbound09:25:175
318460991816,2cyclictest458381-21kworker/u16:0+flush-8:008:59:465
318460991816,2cyclictest427952-21kworker/u16:4+events_unbound09:06:045
318460991816,2cyclictest3045789-21kworker/u16:5+events_unbound07:19:285
318455991816,2cyclictest623060-21kworker/u16:2+events_unbound11:06:164
318455991816,2cyclictest458381-21kworker/u16:0+events_unbound08:33:484
318455991816,2cyclictest351439-21kworker/u16:0+flush-8:007:58:594
318466991716,0cyclictest0-21swapper/710:20:427
318466991716,0cyclictest0-21swapper/709:18:517
318466991716,0cyclictest0-21swapper/708:23:507
318460991715,2cyclictest924284-21kworker/u16:1+flush-8:012:24:155
318460991715,2cyclictest836723-21kworker/u16:0+events_unbound12:02:155
318460991715,2cyclictest802309-21kworker/u16:4+events_unbound11:27:475
318460991715,2cyclictest802309-21kworker/u16:4+events_unbound11:27:475
318460991715,2cyclictest351439-21kworker/u16:0+events_unbound07:47:485
318455991715,2cyclictest836723-21kworker/u16:0+events_unbound11:44:464
318455991715,2cyclictest740835-21kworker/u16:3+events_unbound10:56:124
318455991715,2cyclictest458381-21kworker/u16:0+flush-8:009:53:514
318455991715,2cyclictest427952-21kworker/u16:4+events_unbound08:12:374
318455991715,2cyclictest304288-21kworker/u16:3+events_unbound07:40:484
318455991714,3cyclictest802309-21kworker/u16:4+flush-8:011:23:364
318455991714,3cyclictest802309-21kworker/u16:4+flush-8:011:23:364
318466991615,0cyclictest0-21swapper/711:09:007
318466991615,0cyclictest0-21swapper/709:24:037
318466991613,2cyclictest638298-21kthreadcore09:48:567
318466991610,5cyclictest650-21systemd-journal08:58:357
31846699160,14cyclictest1267-21snmpd11:38:067
31846399160,16cyclictest0-21swapper/610:44:046
31846399160,15cyclictest0-21swapper/611:58:386
318460991614,2cyclictest720652-21kworker/u16:0+events_unbound10:51:485
318460991614,2cyclictest652474-21kworker/u16:4+events_unbound10:06:205
318460991614,2cyclictest623060-21kworker/u16:2+events_unbound11:07:515
318460991614,2cyclictest564792-21kworker/u16:2+events_unbound09:15:475
318460991614,2cyclictest411091-21kworker/u16:2+events_unbound07:55:045
318460991614,2cyclictest3796678-21kworker/u16:1+events_unbound07:13:585
318460991614,2cyclictest304288-21kworker/u16:3+events_unbound07:28:375
318455991614,2cyclictest720652-21kworker/u16:0+flush-8:010:49:074
318455991614,2cyclictest545494-21kworker/u16:3+events_unbound09:25:474
318455991614,2cyclictest458381-21kworker/u16:0+events_unbound09:36:474
318455991613,2cyclictest427952-21kworker/u16:4+flush-8:008:38:464
318466991514,0cyclictest0-21swapper/710:11:387
318466991514,0cyclictest0-21swapper/709:09:107
318466991513,1cyclictest361063-21cat07:28:367
318466991513,1cyclictest0-21swapper/708:38:567
318466991512,2cyclictest1267-21snmpd11:31:217
318466991511,3cyclictest719295-21ntpq10:29:007
318466991511,2cyclictest874479-21ntp_states11:49:017
31846699150,13cyclictest671615-21latency_hist10:08:367
31846699150,13cyclictest1267-21snmpd10:59:057
318463991512,2cyclictest623060-21kworker/u16:2+flush-8:010:24:026
318463991511,3cyclictest439123-21cpuspeed_turbos08:08:476
31846399150,6cyclictest0-21swapper/609:38:516
318460991513,2cyclictest3796678-21kworker/u16:1+events_unbound08:19:165
318460991513,2cyclictest3796678-21kworker/u16:1+events_unbound08:19:165
318460991513,2cyclictest304288-21kworker/u16:3+events_unbound07:40:155
318455991513,2cyclictest477456-21kworker/u16:2+events_unbound08:58:134
318455991513,2cyclictest458381-21kworker/u16:0+events_unbound08:21:484
318455991513,2cyclictest458381-21kworker/u16:0+events_unbound08:21:484
318455991513,2cyclictest3796678-21kworker/u16:1+events_unbound07:16:204
318455991513,2cyclictest351439-21kworker/u16:0+events_unbound07:37:524
318455991512,2cyclictest802309-21kworker/u16:4+flush-8:011:18:464
31846699146,7cyclictest6045-21gmain07:49:037
318466991413,0cyclictest0-21swapper/710:53:597
318466991413,0cyclictest0-21swapper/710:13:517
318466991413,0cyclictest0-21swapper/708:00:547
318466991413,0cyclictest0-21swapper/707:54:047
318466991412,1cyclictest0-21swapper/709:58:507
318466991411,2cyclictest952990-21turbostat12:33:357
31846699140,13cyclictest0-21swapper/710:34:047
31846699140,12cyclictest893897-21ntpq11:59:027
31846399140,13cyclictest0-21swapper/607:09:216
318460991412,2cyclictest908512-21kworker/u16:2+events_unbound12:18:155
318460991412,2cyclictest545494-21kworker/u16:3+events_unbound09:29:515
318460991412,2cyclictest3796678-21kworker/u16:1+events_unbound08:04:355
318460991412,2cyclictest304288-21kworker/u16:3+events_unbound07:37:355
318455991412,2cyclictest623060-21kworker/u16:2+events_unbound10:44:014
318455991412,2cyclictest351439-21kworker/u16:0+events_unbound07:44:074
31846699139,3cyclictest1267-21snmpd11:40:547
31846699139,3cyclictest1267-21snmpd10:48:327
31846699139,3cyclictest1267-21snmpd10:27:437
318466991312,0cyclictest0-21swapper/708:13:567
318466991311,1cyclictest516140-21turbostat08:48:367
318466991310,2cyclictest0-21swapper/707:18:367
31846399135,7cyclictest0-21swapper/611:13:526
318463991312,1cyclictest0-21swapper/607:21:196
31846399130,2cyclictest0-21swapper/609:33:176
31846399130,1cyclictest0-21swapper/608:34:196
31846399130,13cyclictest0-21swapper/610:58:346
31846399130,13cyclictest0-21swapper/610:05:176
318460991311,2cyclictest802309-21kworker/u16:4+events_unbound11:19:515
318460991311,2cyclictest623060-21kworker/u16:2+flush-8:010:53:565
318460991311,2cyclictest623060-21kworker/u16:2+events_unbound10:25:195
318460991311,2cyclictest623060-21kworker/u16:2+events_unbound10:10:165
318460991311,2cyclictest427952-21kworker/u16:4+events_unbound08:32:085
318455991311,2cyclictest908512-21kworker/u16:2+events_unbound12:34:064
318455991311,2cyclictest623060-21kworker/u16:2+events_unbound09:52:124
318455991310,2cyclictest623060-21kworker/u16:2+events_unbound10:18:404
31845599130,13cyclictest0-21swapper/409:14:064
31846699128,3cyclictest1267-21snmpd10:51:477
31846699128,3cyclictest1267-21snmpd08:48:567
31846699127,4cyclictest96-21ksoftirqd/712:24:007
31846699121,9cyclictest0-21swapper/711:53:517
31846699121,2cyclictest913414-21smart_sda12:09:057
31846699121,2cyclictest621980-21ntpq09:38:597
318466991211,0cyclictest0-21swapper/708:03:577
318466991211,0cyclictest0-21swapper/707:39:407
318466991210,1cyclictest0-21swapper/708:33:547
31846699120,11cyclictest0-21swapper/711:24:027
31846699120,11cyclictest0-21swapper/711:24:027
31846699120,10cyclictest0-21swapper/712:13:567
318463991211,1cyclictest0-21swapper/612:11:536
318463991211,1cyclictest0-21swapper/611:12:466
318463991211,1cyclictest0-21swapper/611:04:056
318463991211,1cyclictest0-21swapper/610:32:526
318463991211,1cyclictest0-21swapper/609:03:206
318463991211,1cyclictest0-21swapper/607:58:036
318463991211,1cyclictest0-21swapper/607:48:366
318463991211,1cyclictest0-21swapper/607:36:186
318463991211,1cyclictest0-21swapper/607:24:196
31846399120,1cyclictest0-21swapper/609:46:506
31846399120,1cyclictest0-21swapper/609:16:536
31846399120,12cyclictest0-21swapper/609:57:246
31846399120,12cyclictest0-21swapper/608:52:366
31846399120,12cyclictest0-21swapper/608:26:366
31846099128,3cyclictest721442-21cat10:33:515
318460991211,1cyclictest0-21swapper/508:14:025
318460991210,2cyclictest894849-21kworker/u16:1+flush-8:012:08:515
318455991210,2cyclictest720652-21kworker/u16:0+events_unbound10:59:024
318455991210,2cyclictest3796678-21kworker/u16:1+events_unbound07:18:574
31846699118,2cyclictest6344-21gmain09:43:597
31846699118,2cyclictest1267-21snmpd09:36:337
31846699117,3cyclictest1267-21snmpd09:01:447
31846699117,3cyclictest1267-21snmpd07:34:397
31846699115,5cyclictest6184-21gvfs-afc-volume09:28:547
31846699112,8cyclictest0-21swapper/710:38:517
31846699112,8cyclictest0-21swapper/710:38:517
31846699110,9cyclictest0-21swapper/711:43:557
31846699110,9cyclictest0-21swapper/709:03:497
31846699110,1cyclictest0-21swapper/711:13:597
31846699110,10cyclictest0-21swapper/707:43:567
31846399117,3cyclictest836723-21kworker/u16:0+flush-8:012:03:526
318463991110,1cyclictest0-21swapper/611:42:526
318463991110,1cyclictest0-21swapper/609:59:556
318463991110,1cyclictest0-21swapper/608:55:086
318463991110,1cyclictest0-21swapper/607:18:206
31846399110,11cyclictest0-21swapper/610:16:106
31846099119,2cyclictest458381-21kworker/u16:0+events_unbound08:34:015
31846099118,3cyclictest720652-21kworker/u16:0+flush-8:010:38:595
31846099118,3cyclictest720652-21kworker/u16:0+flush-8:010:38:595
318460991110,1cyclictest0-21swapper/511:17:515
31845599119,2cyclictest652474-21kworker/u16:4+events_unbound10:03:164
31845599119,2cyclictest545494-21kworker/u16:3+flush-8:009:33:364
31845599119,2cyclictest526206-21kworker/u16:1+events_unbound09:06:204
31845599119,2cyclictest3796678-21kworker/u16:1+events_unbound08:04:484
31845599110,1cyclictest0-21swapper/408:44:584
31845599110,11cyclictest0-21swapper/412:24:444
31846699105,4cyclictest6184-21gvfs-afc-volume07:29:017
31846699100,9cyclictest0-21swapper/708:09:007
31846399109,1cyclictest0-21swapper/612:27:486
31846399109,1cyclictest0-21swapper/612:14:246
31846399109,1cyclictest0-21swapper/611:55:576
31846399109,1cyclictest0-21swapper/610:38:236
31846399107,2cyclictest458979-21tune2fs08:18:526
31846399107,2cyclictest458979-21tune2fs08:18:526
31846099108,2cyclictest623060-21kworker/u16:2+events_unbound09:58:275
31846099107,2cyclictest741rcuc/512:18:525
31845599108,2cyclictest908512-21kworker/u16:2+events_unbound12:22:034
31845599108,1cyclictest0-21swapper/412:03:464
3184639998,1cyclictest0-21swapper/611:45:246
3184639998,1cyclictest0-21swapper/611:34:596
3184639998,1cyclictest0-21swapper/611:26:576
3184639998,1cyclictest0-21swapper/611:26:576
3184639998,1cyclictest0-21swapper/609:52:026
3184639998,1cyclictest0-21swapper/609:27:466
3184639998,1cyclictest0-21swapper/608:13:496
3184639998,1cyclictest0-21swapper/608:01:036
3184639998,1cyclictest0-21swapper/607:51:366
3184639998,1cyclictest0-21swapper/607:30:196
3184639997,2cyclictest605581-21kthreadcore09:33:526
3184639990,8cyclictest0-21swapper/608:43:556
3184639985,2cyclictest0-21swapper/608:04:056
3184639983,4cyclictest809534-21grep11:18:536
3184639983,4cyclictest735893-21cut10:38:566
3184639983,4cyclictest735893-21cut10:38:566
3184639983,4cyclictest700160-21timerandwakeup10:19:046
3184639983,4cyclictest580511-21cut09:18:556
3184639983,4cyclictest556086-21perl09:08:516
3184559984,3cyclictest849091-21kthreadcore11:38:534
3184559983,4cyclictest915327-21sed12:13:514
3184639976,1cyclictest0-21swapper/612:35:516
3184639974,2cyclictest497357-21cpuspeed_turbos08:38:476
3184639973,3cyclictest924697-21expr12:18:486
3184639973,3cyclictest547566-21cut09:03:526
3184639973,3cyclictest381132-21cat07:38:486
3184639972,4cyclictest867380-21cut11:48:536
3184639972,4cyclictest828140-21interrupts11:28:516
3184639972,4cyclictest769796-21cut10:58:496
3184639972,4cyclictest750683-21irqcore10:48:536
3184639972,4cyclictest477901-21ls08:28:476
3184639950,3cyclictest0-21swapper/612:28:476
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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