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2026-06-26 - 16:16
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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 rackeslot8.osadl.org (updated Fri Jun 26, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
652288992825,1cyclictest0-21swapper/308:30:173
652288992724,1cyclictest0-21swapper/311:05:213
652288992724,1cyclictest0-21swapper/310:25:153
652288992724,1cyclictest0-21swapper/308:20:003
652288992623,1cyclictest0-21swapper/310:20:133
652288992421,1cyclictest0-21swapper/311:40:143
652288992421,1cyclictest0-21swapper/310:40:123
652288992421,1cyclictest0-21swapper/310:17:383
652288992320,1cyclictest0-21swapper/311:16:463
652288992320,1cyclictest0-21swapper/311:00:123
652288992320,1cyclictest0-21swapper/309:40:013
652288992220,1cyclictest0-21swapper/311:25:223
652288992219,1cyclictest0-21swapper/312:10:213
652288992219,1cyclictest0-21swapper/310:45:173
652288992219,1cyclictest0-21swapper/309:30:233
652288992119,1cyclictest0-21swapper/311:35:003
652288992119,1cyclictest0-21swapper/310:00:003
652288992118,1cyclictest0-21swapper/311:35:263
652288992118,1cyclictest0-21swapper/310:13:553
652288992118,1cyclictest0-21swapper/309:05:193
65228899211,16cyclictest870935-21turbostat09:50:013
652288992018,1cyclictest0-21swapper/308:20:163
652288992017,1cyclictest0-21swapper/311:58:383
652288992017,1cyclictest0-21swapper/311:20:063
652288992017,1cyclictest0-21swapper/310:55:193
652288992017,1cyclictest0-21swapper/310:50:263
652288992017,1cyclictest0-21swapper/310:05:003
652288992017,1cyclictest0-21swapper/309:40:053
652288992017,1cyclictest0-21swapper/309:25:253
652288992017,1cyclictest0-21swapper/309:20:133
652288992017,1cyclictest0-21swapper/307:50:103
652288992017,1cyclictest0-21swapper/307:45:013
652288992017,1cyclictest0-21swapper/307:36:023
65228899201,15cyclictest717670-21taskset07:55:243
652288991917,1cyclictest0-21swapper/310:05:163
652288991916,1cyclictest0-21swapper/312:20:133
652288991916,1cyclictest0-21swapper/312:05:283
652288991916,1cyclictest0-21swapper/312:05:273
652288991916,1cyclictest0-21swapper/312:00:173
652288991916,1cyclictest0-21swapper/309:55:013
652288991916,1cyclictest0-21swapper/307:47:543
652288991916,1cyclictest0-21swapper/307:30:193
65228899191,14cyclictest719029-21taskset08:00:133
7635532181,3sleep10-21swapper/108:35:121
65228899187,7cyclictest7252012sleep308:05:123
652288991816,1cyclictest0-21swapper/307:30:013
652288991815,1cyclictest0-21swapper/312:35:183
652288991815,1cyclictest0-21swapper/312:17:123
652288991815,1cyclictest0-21swapper/311:10:183
652288991815,1cyclictest0-21swapper/310:35:233
652288991815,1cyclictest0-21swapper/309:00:123
652288991815,1cyclictest0-21swapper/308:45:033
652288991815,1cyclictest0-21swapper/308:45:033
652288991815,1cyclictest0-21swapper/308:40:123
652288991815,1cyclictest0-21swapper/308:26:223
652288991815,1cyclictest0-21swapper/307:20:243
65228899181,13cyclictest782677-21taskset08:50:043
65228899181,13cyclictest652644-21taskset07:10:223
65228899181,12cyclictest808339-21taskset09:10:013
9942072171,5sleep0994250-21ntpq11:05:220
652288991715,1cyclictest0-21swapper/310:30:163
652288991715,1cyclictest0-21swapper/310:30:163
652288991714,1cyclictest0-21swapper/312:30:203
652288991714,1cyclictest0-21swapper/309:20:013
652288991714,1cyclictest0-21swapper/308:56:213
652288991714,1cyclictest0-21swapper/307:15:013
65228899171,13cyclictest763704-21taskset08:35:133
65228899171,13cyclictest731556-21taskset08:10:073
65228899171,13cyclictest1119929-21taskset12:25:223
65228899171,13cyclictest1065995-21taskset11:51:273
65228899171,12cyclictest1052233-21taskset11:45:133
6520592170,3sleep30-21swapper/307:09:073
6949852161,3sleep00-21swapper/007:40:190
8138112151,4sleep2813933-21python309:10:252
9796492141,4sleep2222-21plymouthd10:56:582
7581742141,10sleep0758987-21grep08:30:190
10112842140,1sleep10-21swapper/111:17:371
9183082131,9sleep0918313-21sh10:20:070
9156972131,7sleep2915738-21ntpq10:15:202
8388712131,9sleep1838875-21ssh09:28:121
7827222131,3sleep20-21swapper/208:50:122
7047212130,10sleep2704773-21ntpq07:45:232
10514202130,5sleep11051428-21ssh11:44:121
9745812120,9sleep1975557-21cat10:55:161
9404262120,9sleep2940427-21sh10:31:522
9404262120,9sleep2940427-21sh10:31:522
9316932121,8sleep1931938-21unixbench_multi10:25:251
9260982127,2sleep20-21swapper/210:25:022
8937142121,7sleep2893722-21ssh10:03:022
8695432121,8sleep10-21swapper/109:46:081
8466412121,8sleep1846647-21ssh09:33:021
7320412121,8sleep0732965-21/usr/sbin/munin08:10:170
10983972121,8sleep21098405-21ssh12:14:322
10750542122,6sleep1222-21plymouthd11:59:471
10658192120,9sleep21065824-21sh11:50:502
10046422121,8sleep01004676-21apt-get11:15:120
9733242112,5sleep0973320-21apt-get10:55:110
7955252111,6sleep2795300-21sendmail-msp09:00:112
7252392112,4sleep1725236-21apt-get08:05:131
6935392111,7sleep2694434-21sed07:40:172
6662672111,3sleep2666309-21ntpq07:15:272
10338462111,7sleep01034097-21sed11:30:280
9875562100,4sleep10-21swapper/111:02:061
9079322102,4sleep1907973-21ntpq10:10:221
9011712100,7sleep1901179-21ssh10:06:491
8717032100,3sleep0872414-21ssh09:50:160
8311982101,3sleep014-21ksoftirqd/009:23:470
7940602100,7sleep0794232-21strings08:55:200
7713322100,7sleep2772687-21grep08:40:182
7562112100,7sleep2756455-21sed08:25:272
7237902100,7sleep1718844-21/usr/sbin/munin08:00:201
7073772100,7sleep0707409-21kthreadcore07:50:170
7057062100,7sleep0705720-21latency_hist07:50:010
6816032101,6sleep2682547-21grep07:30:182
6577822100,7sleep1652448-21/usr/sbin/munin07:10:331
11058302100,7sleep21105834-21ssh12:18:172
11042192102,4sleep01104269-21ntpq12:15:230
927362290,6sleep0928289-21kthreadcore10:25:160
925187291,1sleep244-21ksoftirqd/210:23:142
910516291,3sleep1910523-21apt-get10:15:111
894749290,3sleep2894539-21appstreamcli10:05:022
886914290,6sleep0886637-21sendmail-msp10:00:110
886898291,5sleep1886637-21sendmail-msp10:00:081
854365290,3sleep2222-21plymouthd09:37:392
824087291,4sleep1824120-21apt-get09:20:101
814823290,2sleep0222-21plymouthd09:11:590
782214290,1sleep00-21swapper/008:47:500
782214290,1sleep00-21swapper/008:47:500
731600291,5sleep1731757-21diskstats08:10:141
713790290,6sleep1715253-21kthreadcore07:55:191
699973290,6sleep1700320-21sed07:45:171
661788290,6sleep0662513-21kthreadcore07:15:220
652098290,1sleep00-21swapper/007:09:370
1135365290,6sleep11135539-21needreboot12:35:211
1126928291,5sleep11127523-21ssh12:30:191
1125194290,6sleep01126927-21kthreadcore12:30:180
1088803290,2sleep21088844-21ssh12:05:262
1088803290,2sleep21088844-21ssh12:05:262
1038987291,5sleep20-21swapper/211:35:192
1035331291,5sleep11035346-21ssh11:33:411
1021756290,6sleep21023103-21kthreadcore11:25:162
1012489292,4sleep21012526-21apt-get11:20:112
997204280,5sleep1997451-21sed11:10:161
972513280,2sleep00-21swapper/010:53:550
949858280,6sleep2949463-21sendmail-msp10:40:142
949732280,1sleep10-21swapper/110:40:091
947668283,2sleep1321rcuc/110:35:281
940551280,1sleep00-21swapper/010:32:190
940551280,1sleep00-21swapper/010:32:180
925705280,5sleep1925711-21ssh10:24:411
885469284,2sleep0788872-21kworker/0:0+kacpid09:56:540
885449280,2sleep1171rcu_preempt09:56:511
877746280,2sleep1321rcuc/109:52:141
864377280,5sleep2865185-21kthreadcore09:45:172
862886281,4sleep2862890-21ssh09:44:252
855574281,4sleep0855579-21sh09:40:100
808020280,5sleep2222-21plymouthd09:09:172
795114281,4sleep1222-21plymouthd08:58:251
788614280,1sleep00-21swapper/008:52:230
782279280,2sleep2222-21plymouthd08:48:412
782279280,2sleep2222-21plymouthd08:48:402
776290280,3sleep1171rcu_preempt08:45:101
776290280,3sleep1171rcu_preempt08:45:101
769917281,4sleep1769698-21sendmail-msp08:40:061
757410280,6sleep2757571-21idleruntime08:30:162
718495280,1sleep00-21swapper/007:59:390
718402280,2sleep2222-21plymouthd07:58:292
711992282,3sleep2222-21plymouthd07:53:282
692594280,1sleep10-21swapper/107:37:281
652799281,4sleep0652938-21irqcore07:10:240
1112993280,1sleep1222-21plymouthd12:21:201
1075141282,3sleep2703-21mta-sts-daemon12:00:012
1067275281,4sleep11067281-21ssh11:54:581
1050376280,2sleep2171rcu_preempt11:41:162
1036827281,4sleep01037759-21irqstats11:35:180
1033333281,4sleep21033481-21ntpq11:30:222
1026495280,2sleep11026501-21ssh11:26:121
1018802280,6sleep1652282-21cyclictest11:21:391
1012462280,5sleep01012224-21sendmail-msp11:20:050
994999271,4sleep1995003-21ssh11:05:551
971919271,3sleep1222-21plymouthd10:52:171
971361271,3sleep2222-21plymouthd10:50:402
962761270,4sleep1962815-21ntpq10:45:221
957636270,4sleep0222-21plymouthd10:45:130
950168270,3sleep0950389-21irqcore10:40:160
944163270,4sleep00-21swapper/010:35:190
885287270,1sleep2885293-21ssh09:56:242
855582271,3sleep1855620-21apt-get09:40:121
847880270,4sleep0848086-21hddtemp_smartct09:35:130
847667271,3sleep1847702-21apt-get09:35:101
833410271,3sleep0834889-21kthreadcore09:25:190
831974271,3sleep20-21swapper/209:25:122
824497271,3sleep2824590-21irqcore09:20:152
823606270,4sleep2222-21plymouthd09:19:392
816248270,3sleep00-21swapper/009:15:120
813767271,3sleep10-21swapper/109:10:241
801013271,3sleep1801253-21unixbench_multi09:00:261
794920270,4sleep2222-21plymouthd08:56:022
744372271,3sleep186188-21systemd-journal08:20:051
743868270,4sleep1222-21plymouthd08:17:081
737099270,1sleep20-21swapper/208:10:282
731090271,3sleep2222-21plymouthd08:07:232
711217270,4sleep1711263-21ntpq07:50:221
692615271,3sleep2222-21plymouthd07:37:442
685471271,3sleep0685513-21ntpq07:30:240
679994270,3sleep1680031-21appstreamcli07:30:011
674803271,2sleep10-21swapper/107:25:171
673866271,2sleep00-21swapper/007:25:110
652013270,2sleep1222-21plymouthd07:08:331
651246270,4sleep2651289-21ntp_states07:05:252
1136516270,1sleep20-21swapper/212:36:212
1133730270,4sleep01135363-21ls12:35:190
1122394271,3sleep21122396-21ssh12:30:072
1104952270,1sleep10-21swapper/112:15:551
1091159271,3sleep01091310-21df12:10:130
1090536271,3sleep01090542-21ssh12:09:130
1090536271,3sleep01090542-21ssh12:09:130
1083975270,4sleep11084722-21ssh12:05:171
1083975270,4sleep11084722-21ssh12:05:171
1075457271,3sleep1222-21plymouthd12:00:121
1067607271,3sleep0222-21plymouthd11:55:090
1066680270,1sleep00-21swapper/011:53:210
1057994273,2sleep0151ktimers/011:45:390
1053148270,4sleep21054147-21cat11:45:172
1052496272,2sleep11053145-21irqrtprio11:45:171
1050739271,3sleep0222-21plymouthd11:42:180
1002749270,1sleep00-21swapper/011:10:390
995173260,3sleep2995175-21ssh11:06:242
988074260,3sleep2222-21plymouthd11:03:322
986225261,2sleep0222-21plymouthd11:00:210
963517260,3sleep2222-21plymouthd10:45:472
941906261,2sleep20-21swapper/210:35:132
939383261,2sleep10-21swapper/110:30:231
939383261,2sleep10-21swapper/110:30:231
910489260,4sleep0910515-21cat10:15:100
909451261,2sleep20-21swapper/210:13:002
902706260,3sleep0902860-21df10:10:130
901927260,1sleep00-21swapper/010:08:530
878199260,2sleep2222-21plymouthd09:53:322
870106261,2sleep00-21swapper/009:47:440
845970261,3sleep0222-21plymouthd09:31:120
845361261,2sleep20-21swapper/209:30:262
822926260,1sleep10-21swapper/109:17:501
807801260,1sleep00-21swapper/009:06:260
801991261,2sleep10-21swapper/109:05:111
801452260,1sleep00-21swapper/009:01:570
788670260,3sleep1222-21plymouthd08:53:081
769459260,3sleep0222-21plymouthd08:37:440
764637262,1sleep20-21swapper/208:35:172
763073260,1sleep10-21swapper/108:32:441
756864260,1sleep10-21swapper/108:29:431
750829260,3sleep00-21swapper/008:25:130
750170260,3sleep0222-21plymouthd08:20:290
749838260,3sleep2222-21plymouthd08:20:262
743534260,3sleep0743726-21users08:15:270
743096261,2sleep20-21swapper/208:15:212
725203261,2sleep0222-21plymouthd08:05:120
723945260,3sleep2222-21plymouthd08:00:212
719049261,2sleep00-21swapper/008:00:150
692116260,3sleep0692382-21grep07:35:260
679694260,3sleep2222-21plymouthd07:26:462
673310260,1sleep10-21swapper/107:21:481
667482261,3sleep0667638-21diskstats07:20:140
667443261,2sleep20-21swapper/207:20:122
662515261,2sleep10-21swapper/107:15:221
658293260,3sleep2222-21plymouthd07:11:182
1120271260,3sleep2222-21plymouthd12:25:262
1119767260,3sleep01119826-21ntp_kernel_pll_12:25:210
1116070261,3sleep10-21swapper/112:25:171
1106785261,3sleep01106527-21sendmail-msp12:20:070
1097652260,3sleep1222-21plymouthd12:12:181
1078309261,3sleep00-21swapper/012:00:190
1026541260,3sleep01026543-21ssh11:26:230
1010698260,1sleep20-21swapper/211:16:022
1003815260,2sleep20-21swapper/211:13:382
769916250,3sleep00-21swapper/008:40:040
699002250,2sleep1222-21plymouthd07:41:401
1112844250,2sleep2222-21plymouthd12:20:572
1067656251,2sleep20-21swapper/211:55:122
1037760250,3sleep11038986-21grep11:35:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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