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2026-07-14 - 01:38
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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 Jul 14, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1917742992,95sleep70-21swapper/719:09:517
19156329174,14sleep50-21swapper/519:06:535
19169828379,3sleep60-21swapper/619:08:466
7092352650,1sleep7709236-21grep23:05:177
19160023717,8sleep40-21swapper/419:07:244
1997322280,1chrt0-21swapper/519:10:215
192185992724,2cyclictest292572-21kworker/u16:0+events_unbound20:14:594
192191992523,1cyclictest0-21swapper/722:44:597
192190992422,2cyclictest840838-21kworker/u16:4+flush-8:000:25:406
192189992422,2cyclictest205761-21kworker/u16:4+events_unbound19:40:145
19219199232,14cyclictest0-21swapper/722:54:017
192191992220,1cyclictest0-21swapper/721:19:597
192191992218,2cyclictest720235-21iostat_ios23:10:157
192191992217,4cyclictest397763-21cat20:50:317
192191992118,2cyclictest928983-21grep00:35:187
192191992118,2cyclictest788886-21smartctl23:35:307
19219199211,13cyclictest839909-21ssh23:59:097
192190992119,2cyclictest571731-21kworker/u16:3+flush-8:022:15:386
192189992119,2cyclictest755267-21kworker/u16:0+events_unbound23:55:305
192189992119,2cyclictest571731-21kworker/u16:3+events_unbound22:20:075
192191992017,2cyclictest266739-21grep19:45:197
19219199200,18cyclictest648-21systemd-journal19:54:547
192190992018,2cyclictest193143-21kworker/u16:3+events_unbound19:35:296
192189992018,2cyclictest840838-21kworker/u16:4+events_unbound00:25:145
192189992018,2cyclictest634033-21kworker/u16:1+flush-8:000:00:185
192191991918,0cyclictest0-21swapper/723:45:377
192190991917,2cyclictest427929-21kworker/u16:1+events_unbound21:20:066
192189991917,2cyclictest755267-21kworker/u16:0+events_unbound23:40:385
192189991917,2cyclictest634033-21kworker/u16:1+flush-8:023:10:325
192185991915,3cyclictest427371-21latency_hist21:09:594
19218599190,14cyclictest0-21swapper/422:54:044
192191991817,0cyclictest0-21swapper/722:00:377
192191991817,0cyclictest0-21swapper/720:30:357
192191991817,0cyclictest0-21swapper/720:30:357
192190991816,2cyclictest399584-21kworker/u16:0+events_unbound21:49:546
192190991816,1cyclictest0-21swapper/623:07:436
19218999185,5cyclictest0-21swapper/520:49:555
192189991816,2cyclictest634033-21kworker/u16:1+flush-8:023:21:055
192189991816,2cyclictest634033-21kworker/u16:1+events_unbound00:05:045
192191991716,0cyclictest0-21swapper/720:55:287
192191991716,0cyclictest0-21swapper/720:40:317
19219199170,16cyclictest488194-21turbostat21:34:587
192190991715,2cyclictest399584-21kworker/u16:0+events_unbound20:57:066
192190991715,2cyclictest361176-21kworker/u16:0+flush-8:020:35:256
192189991715,2cyclictest427929-21kworker/u16:1+flush-8:022:00:045
192189991715,2cyclictest427929-21kworker/u16:1+flush-8:021:45:285
192189991715,2cyclictest300859-21kworker/u16:2+flush-8:021:40:275
192189991715,2cyclictest300859-21kworker/u16:2+events_unbound22:31:495
192189991715,2cyclictest205761-21kworker/u16:4+events_unbound19:20:285
5120802160,0sleep7512081-21sh21:44:157
19219199163,5cyclictest0-21swapper/722:09:427
192191991613,2cyclictest800769-21ntpq23:40:257
192191991613,2cyclictest499120-21ssh21:37:477
192191991612,3cyclictest1302-21snmpd00:19:127
192190991614,2cyclictest634033-21kworker/u16:1+flush-8:000:35:096
192190991614,2cyclictest634033-21kworker/u16:1+events_unbound22:40:276
192190991614,2cyclictest399584-21kworker/u16:0+events_unbound21:08:596
192190991614,2cyclictest300859-21kworker/u16:2+flush-8:022:10:496
192190991614,2cyclictest193143-21kworker/u16:3+flush-8:019:45:326
192190991614,2cyclictest193143-21kworker/u16:3+events_unbound19:22:396
192190991614,2cyclictest163434-21kworker/u16:1+events_unbound20:41:266
192190991610,6cyclictest6233-21gvfs-afc-volume23:46:386
192189991614,2cyclictest634033-21kworker/u16:1+events_unbound23:07:505
192185991612,3cyclictest634033-21kworker/u16:1+flush-8:023:09:594
19219199157,7cyclictest0-21swapper/719:19:467
19219199152,5cyclictest0-21swapper/722:12:067
192191991514,0cyclictest0-21swapper/720:03:437
192191991510,3cyclictest643788-21sh22:35:507
192191991510,3cyclictest643788-21sh22:35:507
19219199150,14cyclictest0-21swapper/720:29:217
19219199150,14cyclictest0-21swapper/720:29:217
192190991513,2cyclictest779668-21kworker/u16:2+flush-8:000:07:056
192190991513,2cyclictest755267-21kworker/u16:0+events_unbound23:51:006
192190991513,2cyclictest718985-21kworker/u16:0+events_unbound23:10:076
192190991513,2cyclictest703861-21kworker/u16:4+events_unbound23:35:186
192190991513,2cyclictest571731-21kworker/u16:3+events_unbound22:20:176
192190991513,2cyclictest339555-21kworker/u16:3+flush-8:020:45:336
192190991513,2cyclictest339555-21kworker/u16:3+events_unbound20:54:396
192190991513,2cyclictest310500-21kworker/u16:5+flush-8:020:25:206
192190991513,2cyclictest310500-21kworker/u16:5+flush-8:020:25:206
192190991513,2cyclictest300859-21kworker/u16:2+events_unbound22:35:066
192190991513,2cyclictest300859-21kworker/u16:2+events_unbound22:35:066
192190991513,2cyclictest205761-21kworker/u16:4+events_unbound19:32:276
192190991513,2cyclictest163434-21kworker/u16:1+events_unbound20:23:236
19219099150,15cyclictest0-21swapper/622:32:006
192189991513,2cyclictest779668-21kworker/u16:2+events_unbound00:10:195
192189991513,2cyclictest703861-21kworker/u16:4+events_unbound23:39:445
192189991513,2cyclictest634033-21kworker/u16:1+events_unbound00:30:525
192189991513,2cyclictest399584-21kworker/u16:0+events_unbound21:34:595
192189991513,2cyclictest163434-21kworker/u16:1+events_unbound20:17:265
19218999150,1cyclictest0-21swapper/500:35:215
19219199146,7cyclictest0-21swapper/720:09:577
192191991413,0cyclictest0-21swapper/720:48:557
192191991413,0cyclictest0-21swapper/700:34:197
19219199140,7cyclictest777314-21ssh23:30:447
19219199140,6cyclictest0-21swapper/721:00:077
19219199140,6cyclictest0-21swapper/700:04:367
192190991413,1cyclictest0-21swapper/622:50:266
192190991412,2cyclictest840838-21kworker/u16:4+events_unbound00:11:416
192190991412,2cyclictest427929-21kworker/u16:1+events_unbound21:34:356
192190991412,2cyclictest399584-21kworker/u16:0+events_unbound21:02:586
192190991412,2cyclictest300859-21kworker/u16:2+events_unbound21:59:546
192190991412,2cyclictest300859-21kworker/u16:2+events_unbound20:30:516
192190991412,2cyclictest300859-21kworker/u16:2+events_unbound20:30:516
192190991412,2cyclictest292572-21kworker/u16:0+events_unbound20:08:076
192190991412,2cyclictest193143-21kworker/u16:3+events_unbound19:27:226
192190991412,2cyclictest163434-21kworker/u16:1+flush-8:020:10:256
192190991412,2cyclictest163434-21kworker/u16:1+events_unbound20:16:396
19219099140,14cyclictest0-21swapper/623:30:296
19219099140,14cyclictest0-21swapper/622:08:306
192189991412,2cyclictest703861-21kworker/u16:4+events_unbound23:26:485
192189991412,2cyclictest427929-21kworker/u16:1+events_unbound22:05:285
192189991412,2cyclictest427929-21kworker/u16:1+events_unbound21:27:475
192189991412,2cyclictest399584-21kworker/u16:0+flush-8:022:45:405
192189991412,2cyclictest399584-21kworker/u16:0+events_unbound22:36:525
192189991412,2cyclictest399584-21kworker/u16:0+events_unbound22:36:525
192189991412,2cyclictest399584-21kworker/u16:0+events_unbound22:26:275
192189991412,2cyclictest399584-21kworker/u16:0+events_unbound22:11:185
192189991412,2cyclictest399584-21kworker/u16:0+events_unbound21:30:135
192185991413,1cyclictest0-21swapper/421:23:174
192185991413,1cyclictest0-21swapper/400:13:244
192185991411,2cyclictest1302-21snmpd21:40:174
19218599140,1cyclictest0-21swapper/423:34:084
19218599140,1cyclictest0-21swapper/422:33:074
19218599140,14cyclictest0-21swapper/423:48:294
19218599140,14cyclictest0-21swapper/422:29:024
19218599140,14cyclictest0-21swapper/400:18:364
6123872130,1chrt612389-21ssh22:25:187
19219199139,3cyclictest648-21systemd-journal00:29:537
192191991312,0cyclictest0-21swapper/720:36:587
192191991312,0cyclictest0-21swapper/720:17:027
192191991312,0cyclictest0-21swapper/719:32:587
192191991312,0cyclictest0-21swapper/719:23:277
192191991311,1cyclictest695144-21cpuspeed_turbos23:00:117
192191991311,1cyclictest320258-21ntpq20:10:237
192191991311,1cyclictest0-21swapper/722:21:067
192191991310,2cyclictest522552-21ssh21:46:057
192191991310,2cyclictest0-21swapper/719:14:557
19219199130,6cyclictest0-21swapper/723:22:087
19219199130,5cyclictest0-21swapper/719:41:447
19219199130,3cyclictest535034-21ssh21:51:397
19219199130,1cyclictest0-21swapper/721:20:067
192190991312,1cyclictest0-21swapper/623:44:226
192190991312,1cyclictest0-21swapper/623:24:206
192190991312,1cyclictest0-21swapper/623:16:376
192190991312,1cyclictest0-21swapper/622:46:206
192190991312,1cyclictest0-21swapper/622:00:186
192190991312,1cyclictest0-21swapper/621:16:386
192190991311,2cyclictest840838-21kworker/u16:4+flush-8:000:00:146
192190991311,2cyclictest755267-21kworker/u16:0+events_unbound23:59:466
192190991311,2cyclictest703861-21kworker/u16:4+events_unbound23:26:566
192190991311,2cyclictest300859-21kworker/u16:2+events_unbound21:37:336
192190991311,2cyclictest153128-21kworker/u16:0+events_unbound19:12:446
19219099130,13cyclictest0-21swapper/621:53:416
19219099130,13cyclictest0-21swapper/621:10:016
19218999132,11cyclictest0-21swapper/519:30:475
192189991312,1cyclictest0-21swapper/521:20:005
192189991312,1cyclictest0-21swapper/521:16:325
192189991312,1cyclictest0-21swapper/519:35:195
192189991311,2cyclictest779668-21kworker/u16:2+events_unbound00:15:435
192189991311,2cyclictest755267-21kworker/u16:0+flush-8:023:49:585
192189991311,2cyclictest655575-21kworker/u16:3+events_unbound22:55:185
192189991311,2cyclictest634033-21kworker/u16:1+events_unbound00:23:525
192189991311,2cyclictest399584-21kworker/u16:0+events_unbound22:15:145
192189991311,2cyclictest399584-21kworker/u16:0+events_unbound21:51:105
192189991311,2cyclictest399584-21kworker/u16:0+events_unbound21:11:435
192189991311,2cyclictest399584-21kworker/u16:0+events_unbound20:58:105
192189991311,2cyclictest193143-21kworker/u16:3+events_unbound19:15:365
19218999130,13cyclictest0-21swapper/523:02:485
19218599139,3cyclictest1302-21snmpd21:54:004
192185991312,1cyclictest0-21swapper/423:44:234
192185991312,1cyclictest0-21swapper/423:20:164
192185991312,1cyclictest0-21swapper/422:39:164
192185991312,1cyclictest0-21swapper/422:39:164
192185991312,1cyclictest0-21swapper/422:11:414
192185991312,1cyclictest0-21swapper/421:26:454
192185991312,1cyclictest0-21swapper/400:20:394
192185991312,1cyclictest0-21swapper/400:08:124
19218599130,13cyclictest0-21swapper/422:49:314
19218599130,13cyclictest0-21swapper/422:43:224
19218599130,13cyclictest0-21swapper/421:56:234
19218599130,13cyclictest0-21swapper/400:01:254
19218599130,0cyclictest0-21swapper/423:38:144
19219199129,2cyclictest630878-21ntp_states22:30:277
19219199129,2cyclictest232094-21kthreadcore19:25:217
19219199128,3cyclictest1302-21snmpd00:21:337
19219199127,4cyclictest332030-21cat20:20:157
192191991211,0cyclictest0-21swapper/719:56:237
192191991210,1cyclictest765915-21ssh23:27:007
19219199120,5cyclictest0-21swapper/719:37:357
19219199120,2cyclictest597239-21ssh22:19:327
192190991211,1cyclictest0-21swapper/622:56:356
192190991210,2cyclictest427929-21kworker/u16:1+events_unbound21:41:026
192190991210,2cyclictest427929-21kworker/u16:1+events_unbound21:27:496
192190991210,2cyclictest399584-21kworker/u16:0+events_unbound22:26:346
192190991210,2cyclictest193143-21kworker/u16:3+events_unbound20:00:086
192190991210,2cyclictest163434-21kworker/u16:1+events_unbound19:58:246
192189991211,1cyclictest0-21swapper/521:55:195
192189991210,2cyclictest718985-21kworker/u16:0+events_unbound23:15:435
192189991210,2cyclictest703861-21kworker/u16:4+events_unbound23:33:425
192189991210,2cyclictest634033-21kworker/u16:1+events_unbound23:52:025
192189991210,2cyclictest634033-21kworker/u16:1+events_unbound22:41:025
192189991210,2cyclictest399584-21kworker/u16:0+events_unbound22:50:175
192189991210,2cyclictest399584-21kworker/u16:0+events_unbound21:04:145
192189991210,2cyclictest339555-21kworker/u16:3+events_unbound21:05:205
192189991210,2cyclictest300859-21kworker/u16:2+flush-8:020:30:225
192189991210,2cyclictest300859-21kworker/u16:2+flush-8:020:30:225
192189991210,2cyclictest300859-21kworker/u16:2+events_unbound20:20:275
19218999120,12cyclictest0-21swapper/520:01:395
19218599124,7cyclictest0-21swapper/419:55:514
192185991211,1cyclictest300859-21kworker/u16:2+flush-8:021:35:234
192185991211,1cyclictest0-21swapper/423:00:154
192185991211,1cyclictest0-21swapper/421:19:494
192185991211,1cyclictest0-21swapper/400:36:444
19218599120,5cyclictest0-21swapper/419:29:354
19218599120,1cyclictest0-21swapper/420:03:494
19218599120,0cyclictest0-21swapper/420:36:374
19219199119,1cyclictest691515-21ntpq22:55:287
192191991111,0cyclictest0-21swapper/723:15:417
19219199110,6cyclictest0-21swapper/722:45:287
19219199110,1cyclictest473041-21ntpq21:25:287
19219099119,2cyclictest840838-21kworker/u16:4+events_unbound00:30:326
19219099119,2cyclictest634033-21kworker/u16:1+events_unbound00:24:566
19219099119,2cyclictest634033-21kworker/u16:1+events_unbound00:15:066
19219099119,2cyclictest205761-21kworker/u16:4+events_unbound19:42:196
19219099119,2cyclictest193143-21kworker/u16:3+events_unbound19:51:146
192190991110,1cyclictest0-21swapper/623:02:446
19219099110,11cyclictest0-21swapper/619:19:296
19218999119,2cyclictest300859-21kworker/u16:2+events_unbound20:50:295
19218999119,2cyclictest205761-21kworker/u16:4+flush-8:019:55:395
19218999119,2cyclictest193143-21kworker/u16:3+events_unbound19:25:095
19218999119,2cyclictest163434-21kworker/u16:1+events_unbound19:51:385
19218999118,2cyclictest1302-21snmpd20:41:405
19218999118,2cyclictest1302-21snmpd20:26:335
19218999118,2cyclictest1302-21snmpd20:26:335
192189991110,1cyclictest0-21swapper/520:06:225
19218999110,6cyclictest0-21swapper/520:12:335
19218599118,2cyclictest1302-21snmpd21:32:234
19218599118,2cyclictest1302-21snmpd20:50:254
19218599117,3cyclictest408125-21cat20:59:594
192185991110,1cyclictest0-21swapper/422:00:584
192185991110,1cyclictest0-21swapper/420:41:494
192185991110,1cyclictest0-21swapper/419:46:284
19218599110,11cyclictest0-21swapper/420:26:124
19218599110,11cyclictest0-21swapper/420:26:124
19218599110,11cyclictest0-21swapper/420:22:354
19218599110,11cyclictest0-21swapper/419:16:314
19219199109,0cyclictest0-21swapper/723:50:037
19219199106,3cyclictest5861-21gmain21:55:217
19219199105,4cyclictest5831-21gnome-shell00:10:087
192191991010,0cyclictest0-21swapper/700:06:407
19219199100,9cyclictest418893-21cat21:05:147
19219199100,1cyclictest433834-21grep21:10:197
19218999108,2cyclictest339555-21kworker/u16:3+events_unbound20:35:015
19218999108,2cyclictest193143-21kworker/u16:3+flush-8:019:45:205
19218599109,1cyclictest0-21swapper/421:00:534
19218599109,1cyclictest0-21swapper/419:52:474
19218599109,1cyclictest0-21swapper/419:13:224
19218599109,1cyclictest0-21swapper/400:33:064
19218599107,2cyclictest1302-21snmpd23:55:034
19218599107,2cyclictest1302-21snmpd23:52:454
19218599107,2cyclictest1302-21snmpd20:09:124
19218599107,2cyclictest1302-21snmpd19:20:254
19218599101,8cyclictest0-21swapper/420:30:334
19218599101,8cyclictest0-21swapper/420:30:334
1921859998,1cyclictest0-21swapper/423:26:254
1921859998,1cyclictest0-21swapper/423:18:134
1921859998,1cyclictest0-21swapper/422:56:094
1921859998,1cyclictest0-21swapper/422:24:564
1921859998,1cyclictest0-21swapper/400:29:294
1921859987,1cyclictest641ktimers/421:10:074
1921859987,1cyclictest0-21swapper/422:16:154
1921859987,1cyclictest0-21swapper/420:45:554
1921859987,1cyclictest0-21swapper/420:17:234
1921859985,2cyclictest0-21swapper/421:49:584
1921859976,1cyclictest0-21swapper/419:40:104
1921859974,2cyclictest6664-21sshd19:33:134
1921859974,2cyclictest1302-21snmpd23:09:224
1921859973,3cyclictest253854-21cat19:39:594
1921859960,6cyclictest0-21swapper/422:07:274
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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