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2025-12-15 - 13:17
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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 all highest latencies:
System rack0slot2.osadl.org (updated Mon Dec 15, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
47539925848,7sleep50-21swapper/507:06:195
47550525521,30sleep70-21swapper/707:07:497
47560624030,7sleep40-21swapper/407:09:154
475931993933,5cyclictest751665-21latency_hist09:29:467
47547623928,7sleep60-21swapper/607:07:246
8842022350,1sleep50-21swapper/510:35:075
475928993532,2cyclictest508675-21kworker/u16:2+events_unbound08:00:026
475923993432,2cyclictest955782-21kworker/u16:1+events_unbound12:00:015
475928993028,2cyclictest508675-21kworker/u16:2+flush-8:007:55:016
475928992927,2cyclictest955782-21kworker/u16:1+flush-8:012:00:006
475923992927,2cyclictest3953228-21kworker/u16:1+flush-8:008:15:145
475931992825,2cyclictest650-21systemd-journal12:34:467
475928992826,2cyclictest3953228-21kworker/u16:1+events_unbound08:50:006
475928992825,2cyclictest597861-21kworker/u16:3+events_unbound08:30:006
475923992725,2cyclictest3953228-21kworker/u16:1+flush-8:009:29:595
8414212260,1sleep50-21swapper/510:15:045
475928992624,2cyclictest693751-21kworker/u16:2+events_unbound09:25:016
475928992624,2cyclictest3953228-21kworker/u16:1+events_unbound08:55:016
475928992624,2cyclictest3953228-21kworker/u16:1+events_unbound08:55:016
475928992623,2cyclictest537023-21kworker/u16:0+events_unbound07:40:026
475923992624,2cyclictest955782-21kworker/u16:1+events_unbound11:31:045
475928992523,2cyclictest838837-21kworker/u16:0+events_unbound11:20:006
475928992523,2cyclictest838837-21kworker/u16:0+events_unbound11:20:006
475923992523,2cyclictest955782-21kworker/u16:1+events_unbound11:18:455
475923992523,2cyclictest663336-21kworker/u16:4+events_unbound08:50:105
475923992523,2cyclictest586275-21kworker/u16:0+events_unbound08:07:455
475931992418,5cyclictest712837-21latency_hist09:09:477
475928992422,2cyclictest790823-21kworker/u16:1+events_unbound09:50:006
475923992422,2cyclictest935331-21kworker/u16:2+flush-8:011:10:185
475923992422,2cyclictest838837-21kworker/u16:0+events_unbound11:46:445
475923992422,2cyclictest790388-21kworker/u16:0+events_unbound09:52:055
475923992422,2cyclictest761390-21kworker/u16:4+events_unbound10:13:005
475923992422,2cyclictest1076514-21kworker/u16:3+events_unbound12:21:045
475923992421,2cyclictest508675-21kworker/u16:2+flush-8:008:00:045
475923992421,2cyclictest3953228-21kworker/u16:1+flush-8:008:55:025
475923992421,2cyclictest3953228-21kworker/u16:1+flush-8:008:55:025
475923992321,2cyclictest964452-21kworker/u16:6+events_unbound11:55:105
475923992321,2cyclictest878187-21kworker/u16:3+events_unbound10:48:535
475923992321,2cyclictest761390-21kworker/u16:4+events_unbound11:05:535
6664492220,1chrt0-21swapper/408:45:054
47593199220,21cyclictest596269-21latency_hist08:09:477
475928992220,2cyclictest839540-21kworker/u16:3+events_unbound10:20:006
475928992220,2cyclictest586275-21kworker/u16:0+events_unbound08:25:016
475928992219,2cyclictest1092031-21kworker/u16:2+events_unbound12:35:026
475923992220,2cyclictest838837-21kworker/u16:0+events_unbound12:34:335
475923992220,2cyclictest838837-21kworker/u16:0+events_unbound12:19:055
475923992220,2cyclictest508675-21kworker/u16:2+flush-8:007:35:125
475923992219,2cyclictest693751-21kworker/u16:2+flush-8:009:55:025
475923992219,2cyclictest217233-21kworker/u16:2+events_unbound07:10:005
475928992118,2cyclictest693751-21kworker/u16:2+events_unbound09:14:556
475923992119,2cyclictest955782-21kworker/u16:1+events_unbound11:20:175
475923992119,2cyclictest955782-21kworker/u16:1+events_unbound11:20:175
475923992119,2cyclictest944708-21kworker/u16:5+events_unbound11:41:205
475923992119,2cyclictest935387-21kworker/u16:3+events_unbound11:03:255
475923992119,2cyclictest878187-21kworker/u16:3+events_unbound10:40:045
475923992119,2cyclictest838837-21kworker/u16:0+events_unbound12:09:325
475923992119,2cyclictest790823-21kworker/u16:1+flush-8:010:01:545
475923992119,2cyclictest761390-21kworker/u16:4+flush-8:010:25:215
475923992119,2cyclictest465595-21kworker/u16:0+events_unbound07:21:425
475923992119,2cyclictest465595-21kworker/u16:0+events_unbound07:21:425
475923992119,2cyclictest3953228-21kworker/u16:1+events_unbound09:27:495
475923992119,2cyclictest1071902-21kworker/u16:1+events_unbound12:29:445
475923992118,2cyclictest484624-21kworker/u16:4+flush-8:007:39:485
475928992017,2cyclictest557475-21kworker/u16:4+events_unbound08:09:546
475923992018,2cyclictest911207-21kworker/u16:1+events_unbound10:59:175
475923992018,2cyclictest911207-21kworker/u16:1+events_unbound10:52:305
475923992018,2cyclictest838837-21kworker/u16:0+events_unbound11:53:135
475923992018,2cyclictest597861-21kworker/u16:3+events_unbound09:24:145
475923992018,2cyclictest597861-21kworker/u16:3+events_unbound09:16:375
475923992018,2cyclictest597861-21kworker/u16:3+events_unbound09:07:165
475923992018,2cyclictest597861-21kworker/u16:3+events_unbound08:30:245
475923992018,2cyclictest596023-21kworker/u16:2+flush-8:008:27:265
475923992018,2cyclictest586275-21kworker/u16:0+events_unbound08:46:085
475923992018,2cyclictest557475-21kworker/u16:4+events_unbound07:53:495
475923992018,2cyclictest508675-21kworker/u16:2+events_unbound07:26:535
475923992018,2cyclictest3953228-21kworker/u16:1+events_unbound09:03:495
9232922190,1sleep40-21swapper/410:55:094
475923991917,2cyclictest839540-21kworker/u16:3+events_unbound10:21:105
475923991917,2cyclictest761390-21kworker/u16:4+flush-8:010:06:055
475923991917,2cyclictest761105-21kworker/u16:3+flush-8:009:38:055
475923991917,2cyclictest761105-21kworker/u16:3+events_unbound09:41:285
475923991917,2cyclictest663336-21kworker/u16:4+events_unbound08:41:445
475923991917,2cyclictest597861-21kworker/u16:3+flush-8:008:13:375
475923991917,2cyclictest586275-21kworker/u16:0+events_unbound08:37:325
475923991917,2cyclictest465595-21kworker/u16:0+events_unbound07:18:015
475923991917,2cyclictest3953228-21kworker/u16:1+events_unbound07:31:095
475923991916,2cyclictest537023-21kworker/u16:0+flush-8:007:54:585
475923991916,2cyclictest3953228-21kworker/u16:1+events_unbound08:20:025
475923991816,2cyclictest944708-21kworker/u16:5+events_unbound11:36:055
475923991816,2cyclictest859029-21kworker/u16:2+events_unbound10:30:105
475923991816,2cyclictest838837-21kworker/u16:0+events_unbound12:10:055
475923991816,2cyclictest838837-21kworker/u16:0+events_unbound12:10:055
475923991816,2cyclictest761105-21kworker/u16:3+events_unbound09:45:285
475923991816,2cyclictest761105-21kworker/u16:3+events_unbound09:45:285
475923991816,2cyclictest1119935-21kworker/u16:4+flush-8:012:36:055
475923991815,2cyclictest964452-21kworker/u16:6+flush-8:011:24:575
475931991714,2cyclictest1267-21snmpd08:56:597
475931991714,2cyclictest1267-21snmpd08:56:597
475923991715,2cyclictest707906-21kworker/u16:5+flush-8:009:10:215
475923991715,2cyclictest498341-21kworker/u16:3+flush-8:007:48:215
475931991610,5cyclictest936304-21latency_hist11:04:477
475931991610,5cyclictest916860-21latency_hist10:54:477
47593199160,15cyclictest966474-21tune2fs11:20:007
47593199160,15cyclictest966474-21tune2fs11:20:007
475928991614,2cyclictest944708-21kworker/u16:5+events_unbound11:35:146
475928991614,2cyclictest878187-21kworker/u16:3+events_unbound10:44:316
475928991614,2cyclictest465595-21kworker/u16:0+events_unbound07:14:526
47593199159,5cyclictest683660-21latency_hist08:54:477
47593199159,5cyclictest1062497-21latency_hist12:09:467
47593199158,5cyclictest650-21systemd-journal08:04:477
47593199157,6cyclictest0-21swapper/710:31:537
475931991511,3cyclictest1267-21snmpd10:44:087
475931991511,3cyclictest1267-21snmpd07:53:187
475931991510,4cyclictest800189-21latency_hist09:54:477
475931991510,4cyclictest650-21systemd-journal07:39:477
475928991513,2cyclictest944708-21kworker/u16:5+events_unbound11:25:066
475928991513,2cyclictest761390-21kworker/u16:4+events_unbound11:07:236
475928991513,2cyclictest508675-21kworker/u16:2+events_unbound07:46:046
475928991513,2cyclictest498341-21kworker/u16:3+events_unbound07:34:036
475928991513,2cyclictest484624-21kworker/u16:4+flush-8:007:20:146
475928991513,2cyclictest484624-21kworker/u16:4+flush-8:007:20:146
475928991512,2cyclictest790823-21kworker/u16:1+events_unbound10:29:526
47593199149,4cyclictest597454-21cat08:10:007
475931991411,2cyclictest847586-21cut10:15:097
475931991411,2cyclictest1032431-21ntpq11:50:107
475931991410,3cyclictest1267-21snmpd12:18:227
47593199140,13cyclictest829421-21latency_hist10:09:477
475928991413,1cyclictest0-21swapper/610:00:176
475928991412,2cyclictest707906-21kworker/u16:5+events_unbound09:08:096
475928991412,2cyclictest693751-21kworker/u16:2+events_unbound09:30:236
475928991412,2cyclictest597861-21kworker/u16:3+events_unbound09:24:266
475928991412,2cyclictest1092031-21kworker/u16:2+events_unbound12:32:576
47593199139,3cyclictest886844-21ntpq10:35:127
47593199139,3cyclictest1267-21snmpd12:00:047
47593199139,3cyclictest1267-21snmpd11:31:367
47593199139,3cyclictest1267-21snmpd09:57:527
47593199139,3cyclictest1267-21snmpd09:14:517
47593199139,3cyclictest1267-21snmpd08:40:257
47593199138,4cyclictest1267-21snmpd09:22:217
47593199138,3cyclictest616139-21/usr/sbin/munin08:20:157
47593199133,9cyclictest482954-21kthreadcore07:10:037
475931991311,1cyclictest0-21swapper/707:20:057
475931991311,1cyclictest0-21swapper/707:20:057
475931991310,2cyclictest614786-21ntpq08:15:107
475931991310,2cyclictest1267-21snmpd09:01:297
47593199130,4cyclictest1000277-21tr11:35:077
47593199130,2cyclictest546805-21ntpq07:40:137
47593199130,12cyclictest498266-21ntpq07:15:147
47593199130,12cyclictest1267-21snmpd11:07:477
47593199130,12cyclictest1015359-21irqcore11:45:037
47593199130,11cyclictest950595-21kthreadcore11:10:077
47593199130,11cyclictest771444-21/usr/sbin/munin09:40:147
475928991312,1cyclictest0-21swapper/607:52:356
475928991311,2cyclictest838837-21kworker/u16:0+events_unbound11:31:106
475928991311,2cyclictest790823-21kworker/u16:1+events_unbound10:15:246
475928991311,2cyclictest761390-21kworker/u16:4+events_unbound10:58:346
475928991311,2cyclictest761390-21kworker/u16:4+events_unbound09:55:206
475928991311,2cyclictest761105-21kworker/u16:3+events_unbound09:43:396
475928991311,2cyclictest693751-21kworker/u16:2+events_unbound09:39:116
475928991311,2cyclictest1071902-21kworker/u16:1+flush-8:012:20:176
47592899130,13cyclictest0-21swapper/612:28:386
47592899130,13cyclictest0-21swapper/610:52:286
47592199130,13cyclictest0-21swapper/412:34:594
47593199129,2cyclictest956090-21/usr/sbin/munin11:15:127
47593199129,2cyclictest1004642-21/usr/sbin/munin11:39:587
47593199129,2cyclictest0-21swapper/710:10:117
47593199128,3cyclictest975541-21/usr/sbin/munin11:25:127
47593199128,3cyclictest917254-21/usr/sbin/munin10:54:597
47593199128,3cyclictest625866-21/usr/sbin/munin08:25:107
47593199128,3cyclictest1267-21snmpd10:29:237
47593199128,3cyclictest1267-21snmpd09:34:517
47593199128,3cyclictest1267-21snmpd09:30:097
47593199128,3cyclictest1267-21snmpd07:28:597
47593199126,5cyclictest1034524-21tune2fs11:55:017
47593199125,6cyclictest6450-21gmain12:20:087
47593199121,10cyclictest789460-21ntpq09:45:097
47593199121,10cyclictest789460-21ntpq09:45:097
47593199120,4cyclictest1112734-21tr12:35:037
47593199120,2cyclictest526502-21kthreadcore07:30:087
47593199120,11cyclictest817932-21grep10:00:087
47593199120,10cyclictest635647-21cpuspeed08:29:577
47593199120,10cyclictest1092557-21diskstats12:24:597
47592899129,2cyclictest878187-21kworker/u16:3+flush-8:010:44:476
47592899129,2cyclictest586275-21kworker/u16:0+events_unbound08:19:476
475928991211,1cyclictest0-21swapper/611:50:576
475928991211,1cyclictest0-21swapper/611:48:546
475928991211,1cyclictest0-21swapper/611:42:366
475928991211,1cyclictest0-21swapper/608:44:566
475928991210,2cyclictest790823-21kworker/u16:1+events_unbound10:11:386
475928991210,2cyclictest761390-21kworker/u16:4+flush-8:010:35:056
475928991210,2cyclictest663336-21kworker/u16:4+events_unbound08:40:516
475928991210,2cyclictest586275-21kworker/u16:0+events_unbound09:02:586
475928991210,2cyclictest586275-21kworker/u16:0+events_unbound08:04:536
475928991210,2cyclictest484624-21kworker/u16:4+events_unbound07:39:156
475928991210,2cyclictest3953228-21kworker/u16:1+events_unbound08:16:066
475928991210,2cyclictest217233-21kworker/u16:2+flush-8:007:14:196
47592899120,12cyclictest0-21swapper/610:27:246
47592899120,12cyclictest0-21swapper/609:45:376
47592899120,12cyclictest0-21swapper/609:45:376
475921991211,1cyclictest0-21swapper/411:53:124
475921991211,1cyclictest0-21swapper/411:20:064
475921991211,1cyclictest0-21swapper/411:20:064
47593199118,2cyclictest849807-21diskstats10:19:597
47593199117,3cyclictest713231-21/usr/sbin/munin09:09:587
47593199116,4cyclictest897860-21grep10:44:587
47593199110,9cyclictest664868-21grep08:44:597
47593199110,4cyclictest549571-21tr07:45:027
47593199110,3cyclictest645274-21/usr/sbin/munin08:35:017
47593199110,3cyclictest1062888-21/usr/sbin/munin12:09:587
47593199110,3cyclictest1062888-21/usr/sbin/munin12:09:587
47592899119,2cyclictest955782-21kworker/u16:1+flush-8:011:19:236
47592899119,2cyclictest693751-21kworker/u16:2+flush-8:010:05:056
47592899119,2cyclictest508675-21kworker/u16:2+events_unbound07:27:186
47592899119,2cyclictest3953228-21kworker/u16:1+flush-8:008:35:436
47592899110,11cyclictest0-21swapper/611:57:166
47592899110,0cyclictest0-21swapper/611:11:146
475921991110,1cyclictest0-21swapper/411:48:474
475921991110,1cyclictest0-21swapper/411:37:454
475921991110,1cyclictest0-21swapper/411:26:434
475921991110,1cyclictest0-21swapper/410:07:254
475921991110,1cyclictest0-21swapper/409:14:364
475921991110,1cyclictest0-21swapper/409:03:344
475921991110,1cyclictest0-21swapper/408:41:304
475921991110,1cyclictest0-21swapper/408:37:054
475921991110,1cyclictest0-21swapper/408:30:284
475921991110,1cyclictest0-21swapper/407:35:274
475921991110,1cyclictest0-21swapper/407:13:324
47592199110,1cyclictest0-21swapper/411:31:084
47592199110,1cyclictest0-21swapper/410:11:504
47592199110,1cyclictest0-21swapper/407:46:294
47592199110,1cyclictest0-21swapper/407:24:344
47592199110,1cyclictest0-21swapper/407:24:344
47592199110,11cyclictest0-21swapper/411:42:104
47592199110,11cyclictest0-21swapper/410:53:464
47592199110,11cyclictest0-21swapper/410:49:214
47592199110,11cyclictest0-21swapper/410:38:194
47592199110,11cyclictest0-21swapper/410:33:544
47592199110,11cyclictest0-21swapper/409:19:014
47592199110,11cyclictest0-21swapper/409:07:594
47592199110,11cyclictest0-21swapper/408:56:574
47592199110,11cyclictest0-21swapper/408:56:574
47592199110,11cyclictest0-21swapper/408:19:354
47592199110,0cyclictest0-21swapper/410:27:174
47593199100,9cyclictest568017-21cstates07:54:597
47592899109,1cyclictest0-21swapper/611:02:526
47592899109,1cyclictest0-21swapper/609:10:006
47592899108,2cyclictest944708-21kworker/u16:5+flush-8:012:10:086
47592899108,2cyclictest944708-21kworker/u16:5+flush-8:012:10:086
47592899107,2cyclictest1053175-21kworker/u16:2+flush-8:012:04:566
47592199109,1cyclictest0-21swapper/412:26:094
47592199109,1cyclictest0-21swapper/411:15:414
47592199109,1cyclictest0-21swapper/410:03:004
47592199109,1cyclictest0-21swapper/409:51:584
47592199109,1cyclictest0-21swapper/408:52:324
47592199109,1cyclictest0-21swapper/408:26:034
47592199109,1cyclictest0-21swapper/407:42:044
47592199109,1cyclictest0-21swapper/407:31:024
47592199100,0cyclictest0-21swapper/407:59:434
4759289998,1cyclictest0-21swapper/612:16:016
4759219998,1cyclictest0-21swapper/410:18:274
4759219998,1cyclictest0-21swapper/409:40:564
4759219987,1cyclictest0-21swapper/412:32:474
4759219987,1cyclictest0-21swapper/412:21:444
4759219987,1cyclictest0-21swapper/412:15:074
4759219987,1cyclictest0-21swapper/411:00:144
4759219987,1cyclictest0-21swapper/409:47:334
4759219987,1cyclictest0-21swapper/409:47:334
4759219983,4cyclictest486630-21grep07:14:494
4759219976,1cyclictest0-21swapper/409:58:364
4759219976,1cyclictest0-21swapper/409:36:314
4759219970,5cyclictest5873-21gsd-housekeepin07:24:524
4759219965,1cyclictest0-21swapper/412:10:424
4759219965,1cyclictest0-21swapper/412:10:424
4759219965,1cyclictest0-21swapper/412:06:174
4759219965,1cyclictest0-21swapper/408:21:384
4759219964,1cyclictest0-21swapper/410:43:554
4759219963,2cyclictest2015-21dockerd09:25:024
4759219962,3cyclictest595386-21chrt08:05:154
4759219962,1cyclictest0-21swapper/409:20:234
4759219961,5cyclictest838837-21kworker/u16:0+flush-8:011:55:124
4759219960,5cyclictest0-21swapper/409:29:484
4759219960,4cyclictest0-21swapper/410:23:164
4759219960,3cyclictest0-21swapper/411:10:244
4759219960,1cyclictest0-21swapper/408:02:494
4759219950,5cyclictest0-21swapper/412:00:284
4759219950,4cyclictest936692-21chrt11:04:544
4759219950,4cyclictest596646-21taskset08:09:474
4759219950,4cyclictest566854-21taskset07:50:484
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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