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2026-09-14 - 23:57
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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 rackeslot8.osadl.org (updated Mon Sep 14, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65783921160,2sleep0221rcuc/008:15:190
6230232320,3sleep014-21ksoftirqd/007:45:190
570755992825,1cyclictest0-21swapper/309:30:013
570755992825,1cyclictest0-21swapper/307:15:003
570755992623,1cyclictest0-21swapper/309:20:013
570755992522,1cyclictest0-21swapper/312:30:113
570755992522,1cyclictest0-21swapper/310:50:113
570755992522,1cyclictest0-21swapper/310:04:593
570755992320,1cyclictest0-21swapper/311:35:153
570755992320,1cyclictest0-21swapper/310:40:263
570755992320,1cyclictest0-21swapper/309:10:223
570755992219,1cyclictest0-21swapper/311:40:163
570755992219,1cyclictest0-21swapper/309:55:003
570755992219,1cyclictest0-21swapper/309:20:153
570755992219,1cyclictest0-21swapper/309:00:223
57075599221,16cyclictest1032745-21turbostat12:24:593
57075599221,15cyclictest773921-21taskset09:40:013
570755992119,1cyclictest0-21swapper/308:20:003
570755992118,1cyclictest0-21swapper/312:00:143
570755992118,1cyclictest0-21swapper/310:20:193
570755992118,1cyclictest0-21swapper/309:47:233
570755992118,1cyclictest0-21swapper/308:40:203
570755992118,1cyclictest0-21swapper/308:25:003
570755992018,1cyclictest0-21swapper/311:00:003
570755992018,1cyclictest0-21swapper/307:40:193
570755992017,1cyclictest0-21swapper/311:30:013
570755992017,1cyclictest0-21swapper/308:40:003
570755992017,1cyclictest0-21swapper/307:21:113
570755992016,1cyclictest0-21swapper/312:00:013
57075599201,14cyclictest766004-21turbostat09:35:003
570755991917,1cyclictest0-21swapper/308:35:013
570755991916,1cyclictest0-21swapper/311:20:243
570755991916,1cyclictest0-21swapper/311:15:273
570755991916,1cyclictest0-21swapper/311:10:143
57075599191,14cyclictest713761-21taskset08:57:383
57075599191,14cyclictest1023470-21taskset12:16:173
57075599191,13cyclictest821325-21chrt10:10:123
8862312181,10sleep2887924-21grep10:50:172
57075599182,13cyclictest977436-21taskset11:48:553
570755991815,1cyclictest0-21swapper/311:00:123
570755991815,1cyclictest0-21swapper/309:40:173
57075599181,13cyclictest865253-21taskset10:35:213
57075599181,13cyclictest859107-21taskset10:31:493
57075599181,13cyclictest851561-21taskset10:27:403
57075599181,13cyclictest804538-21taskset09:57:573
57075599181,13cyclictest649726-21taskset08:09:563
57075599181,13cyclictest643257-21taskset08:04:113
57075599172,12cyclictest707266-21taskset08:51:143
57075599172,12cyclictest701016-21taskset08:47:563
57075599171,13cyclictest984175-21taskset11:50:503
57075599171,13cyclictest947092-21taskset11:30:153
57075599171,13cyclictest913872-21taskset11:06:123
57075599171,13cyclictest836035-21taskset10:18:143
57075599171,13cyclictest598035-21taskset07:25:383
57075599171,13cyclictest1055014-21taskset12:36:143
57075599171,12cyclictest813484-21taskset10:05:033
57075599171,12cyclictest726520-21taskset09:06:293
57075599171,12cyclictest650036-21chrt08:10:123
57075599171,12cyclictest604429-21taskset07:30:463
6296172161,5sleep2629657-21ntpq07:50:242
570755991614,1cyclictest0-21swapper/312:05:233
570755991613,1cyclictest0-21swapper/312:10:103
570755991613,1cyclictest0-21swapper/308:25:183
57075599161,12cyclictest882271-21taskset10:45:353
57075599161,12cyclictest624349-21taskset07:50:043
57075599161,12cyclictest585203-21taskset07:15:283
57075599161,12cyclictest1039536-21taskset12:26:563
57075599161,11cyclictest630764-21taskset07:55:093
57075599161,11cyclictest617972-21taskset07:45:073
8893822151,10sleep1889427-21ntpq10:50:201
7663522151,10sleep0766358-21ssh09:35:140
570755991513,1cyclictest0-21swapper/307:35:163
7655522141,4sleep1222-21plymouthd09:33:461
6552522141,10sleep1655294-21/usr/sbin/munin08:10:231
6430472141,2sleep20-21swapper/208:01:302
5645522140,2sleep30-21swapper/307:05:033
9537662131,9sleep1953771-21sh11:33:171
8747982131,4sleep2868145-21sendmail-msp10:41:312
6295342130,10sleep0629573-21ntpq07:50:220
5886092131,8sleep1590125-21cut07:20:201
10251232132,7sleep01024809-21sendmail-msp12:20:120
9717082121,8sleep1972600-21cut11:45:171
9704812121,8sleep2970599-21tune2fs11:45:142
6642092124,5sleep2623794-21kworker/u16:0+ext4-rsv-conversion08:20:192
5704462120,2sleep10-21swapper/107:07:491
10069582122,6sleep11006997-21ntpq12:05:221
9390452113,2sleep1171rcu_preempt11:25:121
9230232111,6sleep0923084-21munin-run11:15:000
8763602110,8sleep1876400-21sh10:45:111
8361052110,8sleep2836110-21sh10:18:252
8208062110,2sleep20-21swapper/210:09:282
8049622110,7sleep1804964-21ssh09:59:071
7970622110,3sleep0222-21plymouthd09:53:540
7899652112,6sleep2790002-21apt-get09:50:102
6450942110,8sleep2646784-21cut08:05:182
5910542110,2sleep0222-21plymouthd07:20:230
10340612110,7sleep01034664-21cat12:25:170
10217252110,8sleep21022386-21sed12:15:212
9856042100,7sleep2985610-21ssh11:54:512
9802752101,7sleep1981911-21kthreadcore11:50:171
9688132101,6sleep20-21swapper/211:41:362
9472812100,7sleep0947837-21irqrtprio11:30:160
8749212100,7sleep1874927-21ssh10:41:501
8669762100,7sleep0866982-21ssh10:36:560
8635102101,6sleep2865251-21cut10:35:212
8505942102,5sleep2850786-21/usr/sbin/munin10:25:272
8127722100,7sleep1812771-21ssh10:03:501
8116242101,7sleep2805365-21sendmail-msp10:00:342
8053012101,3sleep2805500-21latency_hist10:00:022
7491952100,1sleep00-21swapper/009:21:430
6628392100,7sleep1662895-21cpuspeed_turbos08:20:141
6115172101,6sleep2611251-21sendmail-msp07:40:142
10250772100,7sleep21024809-21sendmail-msp12:20:102
10087262100,1sleep20-21swapper/212:08:442
988786292,4sleep1990475-21grep11:55:191
969596291,2sleep10-21swapper/111:43:561
937213291,5sleep2934832-21kworker/u16:4+rpciod11:20:472
922800296,1sleep10-21swapper/111:14:251
906879291,6sleep20-21swapper/211:03:362
898823290,2sleep2222-21plymouthd10:58:142
858657290,1sleep00-21swapper/010:30:390
838552291,5sleep2839873-21grep10:20:182
820200290,1sleep00-21swapper/010:07:440
763864291,4sleep0763894-21ntpq09:30:250
701479291,4sleep1222-21plymouthd08:50:111
695234291,4sleep0695407-21gltestperf08:45:140
688845291,5sleep2689012-21/usr/sbin/munin08:40:152
650011291,4sleep2650033-21apt-get08:10:122
623371290,6sleep1617978-21/usr/sbin/munin07:45:251
601554290,6sleep1603429-21kthreadcore07:30:181
592684291,5sleep10-21swapper/107:25:171
576971290,2sleep1222-21plymouthd07:14:221
564564291,3sleep0564597-21apt-get07:05:120
1016554290,1sleep20-21swapper/212:13:562
1014794290,6sleep11014875-21ps12:10:231
1001318291,5sleep2222-21plymouthd12:04:502
991335281,4sleep20-21swapper/211:55:242
987427280,5sleep0988784-21kthreadcore11:55:170
930206281,4sleep1930212-21ssh11:18:151
928574281,4sleep2928615-21ntpq11:15:232
918198280,5sleep2919889-21kthreadcore11:10:182
913097280,2sleep2222-21plymouthd11:05:252
874813280,5sleep0874819-21ssh10:41:330
859960280,1sleep20-21swapper/210:34:182
852704280,1sleep1222-21plymouthd10:30:081
850184281,4sleep1850221-21ntpq10:25:221
850125281,3sleep0222-21plymouthd10:25:210
802957281,4sleep0803045-21ntpq09:55:220
787339281,4sleep2787388-21ntpq09:45:222
782103281,3sleep0782099-21apt-get09:45:110
773661280,5sleep1773667-21ssh09:39:321
768881281,4sleep2770563-21kthreadcore09:35:202
750677281,3sleep1750709-21apt-get09:25:131
748076281,4sleep1748126-21ntpq09:20:221
734528281,4sleep1734534-21ssh09:14:411
722723281,4sleep1724481-21grep09:05:201
720380280,6sleep00-21swapper/009:04:220
701443281,3sleep0701476-21apt-get08:50:100
700977280,2sleep1222-21plymouthd08:47:281
688103280,2sleep1222-21plymouthd08:38:101
681637280,2sleep0222-21plymouthd08:33:040
670718280,5sleep1672340-21kthreadcore08:25:181
663201281,4sleep0663429-21irqcore08:20:170
648924281,4sleep1649046-21python308:05:251
636830280,2sleep2222-21plymouthd07:59:572
616907281,4sleep0617022-21python307:40:280
603819281,4sleep0603856-21ntpq07:30:210
586261280,5sleep2586655-21cut07:20:162
584529281,4sleep0584617-21ntpq07:15:210
1055042280,1sleep1222-21plymouthd12:36:201
1047741280,1sleep10-21swapper/112:32:521
1041189281,4sleep01041395-21hddtemp_smartct12:30:150
1025611280,5sleep11026522-21irqstats12:20:171
1024437280,2sleep11024443-21ssh12:19:041
993811271,3sleep0993846-21apt-get12:00:120
993791271,3sleep10-21swapper/112:00:091
969966270,4sleep0970012-21awk11:45:000
961122271,3sleep0222-21plymouthd11:37:140
959917270,4sleep2959959-21ld11:35:242
955193270,4sleep1956133-21cut11:35:191
944373271,3sleep0944408-21ld11:25:230
937462271,3sleep1930876-21sendmail-msp11:21:271
936334271,3sleep0930876-21sendmail-msp11:20:210
913064270,4sleep1913096-21ntpq11:05:241
876845271,3sleep2222-21plymouthd10:45:152
876565271,3sleep0876657-21fschecks_time10:45:140
843468270,1sleep10-21swapper/110:21:501
837039271,3sleep00-21swapper/010:20:120
833318273,2sleep0834260-21memory10:15:180
829177270,3sleep1222-21plymouthd10:15:111
827489270,4sleep1827495-21ssh10:11:151
820255270,4sleep10-21swapper/110:07:531
795962270,1sleep10-21swapper/109:50:471
783058271,3sleep1783534-21ssh09:45:171
780582270,1sleep20-21swapper/209:41:362
777979270,4sleep1773920-21sendmail-msp09:40:201
764699271,4sleep2764705-21ssh09:31:262
756625270,1sleep00-21swapper/009:25:400
748130271,4sleep2872-21in:imuxsock09:20:232
742091270,1sleep10-21swapper/109:18:591
741052271,3sleep2222-21plymouthd09:16:032
736400271,3sleep00-21swapper/009:15:170
733504270,1sleep2733510-21ssh09:11:452
733184273,2sleep0151ktimers/009:10:510
726741270,1sleep2222-21plymouthd09:09:222
725832270,4sleep0725877-21awk09:05:230
714225270,1sleep20-21swapper/209:00:072
707462270,1sleep20-21swapper/208:53:462
688534271,3sleep1688309-21sendmail-msp08:40:101
688214270,1sleep00-21swapper/008:39:370
682574270,5sleep2683511-21kernelversion08:35:172
680915272,2sleep1321rcuc/108:30:241
675392271,3sleep2222-21plymouthd08:29:522
675348270,1sleep0222-21plymouthd08:29:190
662194270,1sleep10-21swapper/108:16:241
656409271,3sleep2656442-21apt-get08:15:132
655999270,1sleep00-21swapper/008:13:150
637160271,2sleep10-21swapper/108:00:131
635960271,4sleep1635995-21ntpq07:55:231
630766270,1sleep00-21swapper/007:55:100
623933270,1sleep2222-21plymouthd07:47:592
617607271,3sleep1222-21plymouthd07:43:451
598641270,4sleep2598674-21apt-get07:30:112
598319270,2sleep0222-21plymouthd07:29:200
585571271,3sleep2585644-21munin-run07:20:012
576849271,3sleep2222-21plymouthd07:12:462
575916270,4sleep0576056-21awk07:10:210
569676271,3sleep2569718-21ntp_kernel_pll_07:05:222
1038460270,4sleep21038505-21ssh12:25:242
1007093271,3sleep01007221-21python312:05:240
985083260,3sleep0222-21plymouthd11:53:260
970260260,3sleep0970266-21ssh11:45:080
952894260,3sleep2952900-21ssh11:30:542
940436261,2sleep20-21swapper/211:25:172
907675260,4sleep0907682-21ssh11:05:070
905859260,1sleep00-21swapper/011:00:410
905000260,4sleep1905144-21ntpq11:00:221
860591260,3sleep1860751-21diskstats10:35:161
828579260,1sleep00-21swapper/010:14:190
827183261,3sleep2827189-21ssh10:10:282
805673261,2sleep00-21swapper/010:00:120
774399260,4sleep0774573-21sed09:40:150
750633260,1sleep20-21swapper/209:25:062
707826260,3sleep2707859-21apt-get08:55:112
700841260,2sleep2222-21plymouthd08:45:402
694745260,3sleep0222-21plymouthd08:44:410
675705260,2sleep2222-21plymouthd08:30:132
643998260,3sleep0644086-21irqcore08:05:160
637124261,2sleep0637157-21apt-get08:00:120
630189260,3sleep10-21swapper/107:51:031
611181260,1sleep00-21swapper/007:39:550
610936260,3sleep2222-21plymouthd07:37:052
610179261,3sleep1610225-21ntpq07:35:231
598208260,1sleep20-21swapper/207:27:552
585264260,1sleep10-21swapper/107:16:071
1055909260,1sleep00-21swapper/012:38:520
1055792261,3sleep21055798-21ssh12:38:342
1048351261,2sleep20-21swapper/212:34:382
1038412260,3sleep11038458-21ntpq12:25:221
1024329261,2sleep0222-21plymouthd12:18:470
1009723260,4sleep01009920-21basename12:10:140
897896250,2sleep0222-21plymouthd10:55:450
892946250,2sleep10-21swapper/110:55:181
884186250,2sleep00-21swapper/010:50:100
720195250,2sleep1222-21plymouthd09:01:581
713624250,2sleep1222-21plymouthd08:55:541
709228251,2sleep00-21swapper/008:55:170
923355240,1sleep00-21swapper/011:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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