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2026-06-19 - 18:17
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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 the 792 highest latencies:
System rackeslot8.osadl.org (updated Fri Jun 19, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94408121020,2sleep0944085-21cron10:35:000
78681321010,1sleep1321rcuc/108:50:141
656379993525,7cyclictest760915-21sleep08:30:013
656379993027,1cyclictest0-21swapper/312:20:003
656379992623,1cyclictest0-21swapper/307:35:163
656379992421,1cyclictest0-21swapper/310:50:013
656379992321,1cyclictest0-21swapper/309:50:013
656379992321,1cyclictest0-21swapper/308:55:013
656379992220,1cyclictest0-21swapper/310:00:013
656379992220,1cyclictest0-21swapper/310:00:003
656379992219,1cyclictest0-21swapper/309:20:183
65637999221,16cyclictest1060388-21taskset11:48:373
88430822115,3sleep2885959-21kthreadcore09:55:192
656379992119,1cyclictest0-21swapper/309:00:003
65637999211,15cyclictest1114139-21taskset12:22:213
65637999211,14cyclictest684112-21taskset07:30:013
656379992017,1cyclictest0-21swapper/311:00:073
656379992017,1cyclictest0-21swapper/309:25:123
6881190,7low-memory-moni1036209-21dpkg-deb11:31:062
65637999198,7cyclictest9582582sleep310:41:023
65637999192,13cyclictest975489-21chrt10:55:123
65637999192,13cyclictest1084149-21turbostat12:05:013
656379991916,1cyclictest0-21swapper/307:40:123
65637999191,14cyclictest950754-21taskset10:36:483
65637999191,14cyclictest821111-21taskset09:15:163
65637999191,14cyclictest805528-21taskset09:03:143
65637999191,14cyclictest1121425-21taskset12:26:053
65637999191,14cyclictest1036115-21chrt11:31:003
65637999191,13cyclictest856492-21chrt09:35:223
65637999191,13cyclictest741597-21taskset08:14:553
7466572181,13sleep2746990-21needreboot08:15:202
65637999188,7cyclictest7480852sleep308:20:013
656379991816,1cyclictest0-21swapper/309:55:563
656379991816,0cyclictest0-21swapper/311:55:153
656379991816,0cyclictest0-21swapper/311:25:163
656379991815,1cyclictest0-21swapper/309:40:143
656379991815,1cyclictest0-21swapper/307:10:533
65637999181,13cyclictest935239-21taskset10:27:013
65637999181,13cyclictest920280-21taskset10:18:553
65637999181,13cyclictest912167-21taskset10:12:473
65637999181,13cyclictest811746-21taskset09:06:023
65637999181,13cyclictest767828-21taskset08:35:163
65637999181,13cyclictest766940-21taskset08:31:033
65637999181,13cyclictest735030-21taskset08:07:183
65637999181,13cyclictest727683-21taskset08:00:193
65637999181,13cyclictest722041-21taskset07:55:273
65637999181,13cyclictest690298-21taskset07:33:223
65637999181,13cyclictest677347-21taskset07:20:593
65637999181,13cyclictest667868-21taskset07:15:173
65637999181,13cyclictest1135341-21taskset12:35:193
65637999181,13cyclictest1098262-21taskset12:11:103
65637999181,13cyclictest1089800-21chrt12:05:243
65637999181,13cyclictest1067302-21taskset11:51:183
65637999181,13cyclictest1038294-21taskset11:35:143
65637999181,13cyclictest1014375-21chrt11:20:013
65637999181,13cyclictest1005248-21taskset11:11:553
7035432171,5sleep2703576-21apt-get07:45:132
6715552171,2sleep00-21swapper/007:20:120
656379991714,1cyclictest0-21swapper/309:50:183
656379991714,1cyclictest0-21swapper/309:10:123
656379991714,1cyclictest0-21swapper/308:40:203
656379991714,1cyclictest0-21swapper/307:50:163
65637999171,13cyclictest997999-21taskset11:08:273
65637999171,13cyclictest974126-21taskset10:52:033
65637999171,13cyclictest925067-21taskset10:20:203
65637999171,13cyclictest709373-21taskset07:46:213
65637999171,12cyclictest942262-21taskset10:30:273
65637999171,12cyclictest903733-21taskset10:05:403
65637999171,12cyclictest746995-21chrt08:15:203
65637999171,12cyclictest1123043-21taskset12:30:033
65637999171,12cyclictest1045687-21taskset11:40:033
65637999171,12cyclictest1006576-21taskset11:15:053
9521562161,8sleep2951921-21sendmail-msp10:40:042
8330612161,11sleep2833177-21ntpq09:20:222
656379991613,1cyclictest0-21swapper/309:30:573
65637999161,12cyclictest786114-21taskset08:45:333
8048692151,10sleep0804983-21python309:00:280
7726002151,4sleep0772698-21ntpq08:35:210
11204372151,10sleep01120575-21netstat12:25:190
8981722141,9sleep1898716-21cut10:05:161
11250662141,10sleep11126804-21tr12:30:181
8821842131,4sleep0222-21plymouthd09:55:120
8278942131,10sleep086188-21systemd-journal09:20:070
10361412131,4sleep1672-21dbus-daemon11:31:041
10050442130,10sleep11005048-21ssh11:11:231
9971252121,3sleep1222-21plymouthd11:05:541
9663212121,8sleep2966327-21ssh10:46:592
9518542120,9sleep2951921-21sendmail-msp10:40:012
9211672120,9sleep2921278-21fschecks_time10:20:162
8965992120,2sleep00-21swapper/010:02:340
8965992120,2sleep00-21swapper/010:02:340
8275822121,8sleep1827643-21sendmail-msp09:20:011
8176972121,8sleep2817726-21ntp_states09:10:242
7989492121,7sleep1222-21plymouthd08:56:191
7796712121,8sleep1779673-21sshd-auth08:40:321
6501632120,6sleep2222-21plymouthd07:05:112
11322022121,8sleep11133623-21cut12:35:191
11301342120,9sleep01130140-21ssh12:34:080
9910192110,7sleep0990746-21apt-get11:05:050
9787952110,2sleep134-21ksoftirqd/110:55:181
9355972110,8sleep1935601-21ssh10:28:091
7986542111,7sleep0798871-21/usr/sbin/munin08:55:270
7355462110,8sleep2735697-21df_inode08:10:152
7099562115,3sleep1331ktimers/107:50:121
6881110,2low-memory-moni222-21plymouthd11:31:050
65637999119,1cyclictest0-21swapper/307:10:013
11147192110,8sleep01114724-21sh12:24:070
10999522111,7sleep01099957-21apt-get12:15:130
10766732110,8sleep21076447-21sendmail-msp12:00:042
10478172110,8sleep11049473-21grep11:40:181
9358342101,6sleep0935840-21ssh10:28:480
8812222100,7sleep0881228-21ssh09:53:160
8744412102,4sleep2874440-21apt-get09:50:122
8657312100,7sleep0865737-21ssh09:43:170
8648882100,8sleep2864894-21ssh09:40:422
8144702100,7sleep1815992-21cut09:10:191
7561502100,7sleep2757585-21grep08:25:182
7547452101,4sleep0754779-21apt-get08:25:110
7177262100,7sleep1719004-21cat07:55:181
10119612101,5sleep11011997-21ntpq11:15:241
975873290,6sleep2976383-21irqcore10:55:162
972942291,4sleep0972985-21ntpq10:50:210
946201290,6sleep0947786-21kthreadcore10:35:180
926255291,5sleep1926298-21ntpq10:20:221
895263290,6sleep2895295-21ssh10:00:242
895263290,6sleep2895295-21ssh10:00:232
871974291,4sleep1872022-21ntpq09:45:231
859515291,5sleep1860406-21ssh09:40:171
843380290,1sleep0222-21plymouthd09:30:060
819216290,2sleep0222-21plymouthd09:13:180
811164291,5sleep0811206-21ntpq09:05:250
766317291,5sleep1766357-21ntpq08:30:261
754375294,2sleep10-21swapper/108:23:451
729139290,6sleep2729142-21cpu08:05:132
690752291,4sleep1690754-21apt-get07:35:141
1129981292,5sleep21129987-21ssh12:33:352
1117177291,6sleep21118843-21tr12:25:162
1099593290,6sleep01-21systemd12:15:010
1091845291,6sleep00-21swapper/012:10:000
1076431290,1sleep00-21swapper/012:00:020
1075533290,6sleep01075539-21ssh11:57:360
1058759291,5sleep11058805-21ntpq11:45:221
1044723290,3sleep01044729-21ssh11:38:030
1043245291,5sleep21043289-21ntpq11:35:222
1028701293,4sleep21014361-21kworker/u16:2+nfsiod11:27:122
1022374290,2sleep1222-21plymouthd11:25:141
1014475291,5sleep1249-21jbd2/sda2-811:20:131
1006652291,3sleep20-21swapper/211:15:132
1006229292,4sleep0222-21plymouthd11:14:510
1005823290,6sleep21005829-21ssh11:13:402
989914280,5sleep0222-21plymouthd11:02:440
988436282,3sleep2988527-21ntpq11:00:212
972994281,4sleep1973042-21ntpq10:50:211
943788280,5sleep2222-21plymouthd10:34:122
942050280,6sleep1942153-21sendmail_mailtr10:30:251
919838280,1sleep00-21swapper/010:17:380
919372280,2sleep10-21swapper/110:16:221
896406280,5sleep10-21swapper/110:02:031
896406280,5sleep10-21swapper/110:02:021
867072281,4sleep2867462-21sed09:45:162
857986280,2sleep0222-21plymouthd09:38:130
856388281,5sleep10-21swapper/109:35:211
850004281,4sleep2849750-21kworker/u16:1+nfsiod09:32:332
840954281,4sleep1841000-21ntpq09:25:231
826747280,1sleep20-21swapper/209:17:292
805455280,5sleep2222-21plymouthd09:02:182
792611280,2sleep0222-21plymouthd08:51:580
773939281,3sleep2773971-21apt-get08:40:132
767160280,2sleep0222-21plymouthd08:33:500
766359281,4sleep2766401-21ntpq08:30:272
734925282,3sleep1222-21plymouthd08:05:571
722972281,4sleep1723139-21hddtemp_smartct08:00:151
703739280,5sleep1703898-21gltestperf07:45:161
690429280,4sleep1690549-21sed07:35:011
683793281,4sleep2222-21plymouthd07:26:452
661783281,4sleep2661825-21ntpq07:10:252
656013280,1sleep00-21swapper/007:07:220
655333281,4sleep1655370-21ntpq07:05:231
1115054281,4sleep21115280-21cat12:25:012
1106246280,6sleep11106252-21ssh12:16:531
1077231280,5sleep11078161-21ssh12:00:191
1068252281,4sleep2222-21plymouthd11:53:582
1061184280,4sleep1222-21plymouthd11:50:121
1053469280,2sleep20-21swapper/211:45:112
991060271,3sleep2991097-21apt-get11:05:112
989705270,1sleep10-21swapper/111:02:041
975435270,1sleep00-21swapper/010:55:100
967676270,3sleep2967713-21apt-get10:50:102
967152270,3sleep1222-21plymouthd10:49:261
936006270,1sleep2936012-21ssh10:29:222
921003271,3sleep0222-21plymouthd10:20:130
920516270,3sleep2222-21plymouthd10:19:442
912640270,1sleep20-21swapper/210:14:112
912133270,1sleep00-21swapper/010:12:400
904768270,4sleep2222-21plymouthd10:08:452
873396270,4sleep0873402-21ssh09:47:590
849706270,1sleep1849712-21ssh09:31:431
839418271,4sleep2840705-21ssh09:25:202
827876271,4sleep1249-21jbd2/sda2-809:20:051
826664271,3sleep0222-21plymouthd09:17:160
805409273,2sleep11000-21snmpd09:01:411
785493271,3sleep1222-21plymouthd08:45:201
782302270,4sleep2784065-21grep08:45:172
773936271,3sleep0773711-21sendmail-msp08:40:110
773552270,1sleep20-21swapper/208:38:442
772700271,3sleep1772741-21ntpq08:35:221
754782271,2sleep10-21swapper/108:25:121
753568270,1sleep20-21swapper/208:20:252
753437270,3sleep0753522-21ntpq08:20:230
743277271,3sleep0744767-21cut08:15:170
728577270,4sleep2222-21plymouthd08:01:442
715150271,3sleep0715192-21ntpq07:50:240
709962271,3sleep2222-21plymouthd07:50:132
703244270,1sleep00-21swapper/007:44:380
702358271,3sleep1702402-21ntpq07:40:221
690205270,3sleep2222-21plymouthd07:32:092
690193270,1sleep00-21swapper/007:31:590
683847270,1sleep10-21swapper/107:27:281
682944271,3sleep0683084-21ntpq07:25:180
673581271,3sleep20-21swapper/207:20:192
671044270,1sleep00-21swapper/007:17:370
666492271,3sleep20-21swapper/207:15:182
662470270,1sleep00-21swapper/007:12:180
662446271,4sleep10-21swapper/107:11:591
1137515270,1sleep0222-21plymouthd12:38:020
1133625271,3sleep21135340-21kthreadcore12:35:202
1122304270,4sleep11122310-21ssh12:28:371
1113859270,1sleep1222-21plymouthd12:21:281
1107318270,1sleep20-21swapper/212:19:592
1099428270,4sleep134-21ksoftirqd/112:14:341
1089887271,4sleep11090016-21python312:05:271
1074229271,3sleep21074276-21ntpq11:55:212
1069613271,3sleep10-21swapper/111:55:161
1058984271,3sleep01059129-21/usr/sbin/munin11:45:250
1051952270,4sleep0222-21plymouthd11:41:370
1028445271,3sleep0222-21plymouthd11:26:290
1020930270,3sleep2222-21plymouthd11:22:222
1020571271,3sleep0222-21plymouthd11:21:200
1008933271,4sleep01010543-21cut11:15:180
966773260,1sleep00-21swapper/010:48:170
958266260,1sleep00-21swapper/010:41:020
957776261,3sleep1958023-21unixbench_multi10:40:271
951240260,3sleep1222-21plymouthd10:38:151
911669260,1sleep10-21swapper/110:11:251
897708260,1sleep00-21swapper/010:05:070
887367260,3sleep1887415-21ld09:55:221
874405261,2sleep10-21swapper/109:50:111
856442260,3sleep2222-21plymouthd09:35:222
835712260,3sleep0835871-21df09:25:140
806884260,3sleep2807533-21kthreadcore09:05:182
805970261,2sleep10-21swapper/109:05:131
793155260,2sleep2222-21plymouthd08:55:122
792547260,3sleep2222-21plymouthd08:51:162
786208260,1sleep00-21swapper/008:46:490
747675260,3sleep1222-21plymouthd08:15:581
741584260,1sleep10-21swapper/108:14:471
729300260,3sleep0729500-21hddtemp_smartct08:05:140
722221260,3sleep2222-21plymouthd07:57:042
704957260,3sleep0706587-21cat07:45:190
703229260,3sleep2222-21plymouthd07:44:282
696528260,2sleep2222-21plymouthd07:36:112
692313260,3sleep0694042-21grep07:35:210
1091908261,2sleep2222-21plymouthd12:10:022
1090368260,3sleep21090376-21ssh12:05:322
1061177260,3sleep0222-21plymouthd11:50:110
1051490260,2sleep2222-21plymouthd11:40:272
728517250,2sleep0222-21plymouthd08:00:580
721379251,1sleep00-21swapper/007:55:200
677340250,2sleep10-21swapper/107:20:531
665124250,2sleep1222-21plymouthd07:15:131
1038019250,2sleep11038167-21ssh11:35:121
735509240,1sleep0222-21plymouthd08:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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