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2026-08-05 - 12:52
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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 highest latencies:
System rackeslot8.osadl.org (updated Wed Aug 05, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90247823750,2sleep2868188-21kworker/u16:3+ext4-rsv-conversion22:20:222
634175993025,3cyclictest962855-21turbostat23:00:003
634175992724,1cyclictest0-21swapper/322:45:163
634175992623,1cyclictest0-21swapper/300:00:003
634175992522,1cyclictest0-21swapper/321:40:163
63417599251,20cyclictest970819-21turbostat23:05:003
634175992421,1cyclictest0-21swapper/320:25:283
634175992320,1cyclictest0-21swapper/322:20:193
634175992320,1cyclictest0-21swapper/322:15:163
634175992320,1cyclictest0-21swapper/320:40:003
634175992319,1cyclictest0-21swapper/300:35:173
634175992219,1cyclictest0-21swapper/322:00:223
634175992118,1cyclictest0-21swapper/323:25:013
634175992118,1cyclictest0-21swapper/319:40:183
634175992118,1cyclictest0-21swapper/319:13:043
634175992117,1cyclictest0-21swapper/321:20:093
634175992018,1cyclictest0-21swapper/323:20:013
634175992018,1cyclictest0-21swapper/321:35:273
634175992017,1cyclictest0-21swapper/323:40:163
634175992017,1cyclictest0-21swapper/319:26:333
634175992017,1cyclictest0-21swapper/300:20:143
63417599201,15cyclictest1080543-21taskset00:14:293
63417599201,14cyclictest867651-21taskset21:57:063
63417599201,14cyclictest861009-21taskset21:55:013
7645762191,6sleep0764597-21cron20:50:000
634175991916,1cyclictest0-21swapper/323:51:203
634175991916,1cyclictest0-21swapper/322:30:233
634175991916,1cyclictest0-21swapper/321:00:123
634175991916,1cyclictest0-21swapper/321:00:123
634175991916,1cyclictest0-21swapper/320:40:183
634175991916,1cyclictest0-21swapper/319:53:123
634175991916,1cyclictest0-21swapper/300:00:053
63417599191,14cyclictest978281-21taskset23:09:063
63417599191,14cyclictest949351-21taskset22:50:183
63417599191,14cyclictest890772-21taskset22:10:533
63417599191,14cyclictest1102139-21taskset00:25:243
8219852181,13sleep0821991-21ssh21:30:120
63417599182,13cyclictest796922-21taskset21:11:513
63417599182,12cyclictest935088-21taskset22:40:203
63417599182,12cyclictest655114-21taskset19:20:543
634175991815,1cyclictest0-21swapper/320:50:523
634175991815,1cyclictest0-21swapper/320:31:163
634175991815,1cyclictest0-21swapper/320:20:133
63417599181,14cyclictest985082-21taskset23:11:273
63417599181,14cyclictest1025410-21taskset23:39:173
63417599181,13cyclictest913363-21taskset22:25:203
63417599181,13cyclictest845941-21taskset21:45:153
63417599181,13cyclictest826289-21taskset21:30:193
63417599181,13cyclictest821071-21taskset21:28:273
63417599181,13cyclictest790008-21taskset21:07:253
63417599181,13cyclictest713539-21chrt20:10:133
63417599181,13cyclictest687200-21taskset19:46:323
63417599181,13cyclictest1010025-21sleep23:30:003
634175991714,1cyclictest0-21swapper/323:30:123
63417599171,13cyclictest805597-21taskset21:19:173
63417599171,13cyclictest776262-21taskset20:55:233
63417599171,13cyclictest648956-21taskset19:19:343
63417599171,13cyclictest1087783-21taskset00:17:503
63417599171,13cyclictest1040566-21taskset23:47:313
63417599171,12cyclictest877138-21taskset22:05:153
63417599171,12cyclictest712979-21taskset20:06:393
63417599171,12cyclictest706528-21taskset20:01:113
63417599171,12cyclictest699409-21chrt19:55:223
63417599171,12cyclictest667412-21taskset19:30:243
63417599171,12cyclictest1104673-21chrt00:30:123
63417599171,12cyclictest1065438-21chrt00:05:153
63417599170,13cyclictest762548-21taskset20:45:173
63417599170,13cyclictest725677-21taskset20:15:303
63417599170,13cyclictest669772-21taskset19:35:173
7431422160,7sleep134-21ksoftirqd/120:30:201
6395222161,5sleep1639561-21ntpq19:10:231
634175991613,1cyclictest0-21swapper/322:35:223
9827022141,10sleep0978906-21/usr/sbin/munin23:10:210
6339502140,2sleep30-21swapper/319:08:523
11124942141,9sleep00-21swapper/000:35:160
9371422131,4sleep0937172-21ntpq22:40:260
9945542121,8sleep0994302-21sendmail-msp23:20:070
9631612121,8sleep0962891-21sendmail-msp23:00:100
9298252120,8sleep2929831-21ssh22:35:392
8988222120,8sleep0790233-21diskmemload22:16:240
8465252121,2sleep00-21swapper/021:45:170
7851022121,8sleep0786052-21tr21:05:200
7519612122,7sleep2751968-21grep20:40:162
7015842121,9sleep2700398-21sendmail-msp20:00:192
6370072124,5sleep2638827-21grep19:10:192
6279972121,5sleep1628019-21apt-get19:05:131
10566252121,8sleep11056631-21ssh23:58:451
9466292111,3sleep10-21swapper/122:48:231
8830802110,8sleep2883086-21ssh22:06:202
7837802112,6sleep1222-21plymouthd21:04:481
7837802112,6sleep1222-21plymouthd21:04:481
7324962110,7sleep2732741-21sed20:25:002
7006162111,7sleep1700398-21sendmail-msp20:00:061
6878902110,1sleep10-21swapper/119:50:151
6763382111,3sleep1677541-21kthreadcore19:40:211
6749692110,8sleep0674701-21sendmail-msp19:40:160
6408472114,4sleep0641218-21kthreadcore19:15:020
10942642111,7sleep11094307-21ssh00:20:261
10942192110,8sleep01094255-21ntpq00:20:250
10882372112,2sleep10-21swapper/100:19:101
10818032110,8sleep21082574-21tr00:15:182
10567542111,7sleep2790233-21diskmemload23:59:102
10175462110,4sleep1222-21plymouthd23:34:231
10073642110,2sleep21007369-21kthreadcore23:25:172
9971582101,5sleep1994302-21sendmail-msp23:20:201
9707932101,6sleep1222-21plymouthd23:05:001
9456162100,3sleep2222-21plymouthd22:45:412
9449382101,6sleep00-21swapper/022:45:230
8911822101,6sleep2222-21plymouthd22:11:572
8671882100,7sleep1867193-21ssh21:55:481
8400982100,7sleep1841450-21cut21:40:201
8376142101,6sleep2837295-21sendmail-msp21:40:142
8193642100,7sleep0819412-21ntpq21:25:200
8077032102,6sleep1805937-21sendmail-msp21:20:201
8044782100,3sleep1804482-21ssh21:16:111
8033732100,1sleep00-21swapper/021:15:210
7905892102,3sleep2222-21plymouthd21:10:152
7519262102,5sleep1751958-21apt-get20:40:151
7348292100,7sleep1736588-21cut20:25:191
6554342100,7sleep0655554-21latency_hist19:25:010
6312892100,7sleep0632916-21sed19:05:200
10609362100,1sleep00-21swapper/000:00:200
10417522102,4sleep21041776-21apt-get23:50:122
10262412101,6sleep11026441-21hddtemp_smartct23:40:171
985362290,1sleep20-21swapper/223:12:112
955398291,4sleep1955395-21apt-get22:55:141
947523291,4sleep1947526-21apt-get22:50:131
933108290,6sleep1933807-21kthreadcore22:40:191
923886292,3sleep1923910-21apt-get22:35:131
886195290,7sleep0887433-21grep22:10:190
874377291,4sleep2874418-21ntpq22:00:252
836469290,6sleep2836471-21ssh21:37:532
820813290,3sleep2820819-21ssh21:27:432
812186290,1sleep0222-21plymouthd21:20:350
782932291,5sleep0777389-21sendmail-msp21:00:260
782932291,5sleep0777389-21sendmail-msp21:00:260
744950292,5sleep0744953-21sshd-auth20:31:160
713503291,4sleep2713536-21apt-get20:10:132
700189290,3sleep2222-21plymouthd19:58:062
667328290,6sleep1222-21plymouthd19:30:231
641262291,4sleep1642861-21python319:15:041
1073222291,4sleep21073262-21ssh00:10:122
1063561290,7sleep21063567-21ssh00:00:502
1047820290,3sleep0222-21plymouthd23:50:580
1041417291,5sleep21041443-21munin-run23:50:002
1025979291,4sleep0222-21plymouthd23:40:030
1009985290,6sleep01010225-21latency_hist23:30:010
993148281,4sleep1222-21plymouthd23:16:591
992999280,2sleep2222-21plymouthd23:16:352
970672284,1sleep20-21swapper/223:04:412
955625280,5sleep0955827-21idleruntime22:55:170
938507280,2sleep2222-21plymouthd22:42:562
923230280,1sleep00-21swapper/022:34:040
916060281,3sleep1916095-21apt-get22:30:121
915553280,1sleep00-21swapper/022:29:070
915157280,2sleep20-21swapper/222:28:052
907159280,5sleep1907165-21ssh22:22:351
891339281,4sleep1891343-21ssh22:12:281
869551281,4sleep0870238-21irqrtprio22:00:200
868998281,4sleep1868731-21sendmail-msp22:00:051
827898280,5sleep2827904-21ssh21:30:432
820271282,3sleep1222-21plymouthd21:26:091
812418282,3sleep2751912-21kworker/u16:3+nfsiod21:21:172
796627282,3sleep0222-21plymouthd21:10:570
787812282,3sleep2222-21plymouthd21:05:222
783544281,4sleep2222-21plymouthd21:01:452
783544281,4sleep2222-21plymouthd21:01:452
777255280,1sleep20-21swapper/220:59:042
769257280,5sleep2769902-21cat20:50:212
751353282,3sleep2222-21plymouthd20:36:232
745518281,3sleep0745551-21apt-get20:35:130
744917280,2sleep2222-21plymouthd20:30:502
738008280,4sleep2738045-21ntpq20:25:242
728704280,5sleep0730176-21kthreadcore20:20:170
719642281,4sleep1719723-21sed20:15:011
699459281,4sleep0699489-21ntpq19:55:240
673959281,4sleep0674162-21grep19:35:270
648980281,4sleep2222-21plymouthd19:19:542
627977280,1sleep20-21swapper/219:05:062
1110840282,3sleep0222-21plymouthd00:31:230
1103372280,2sleep2222-21plymouthd00:27:282
1074657281,4sleep01075744-21kthreadcore00:10:180
1065413280,4sleep21065437-21ssh00:05:152
1056437280,1sleep00-21swapper/023:58:160
1040371280,2sleep1222-21plymouthd23:47:021
1026442281,4sleep21026799-21sed23:40:182
1018620280,5sleep21019134-21irqrtprio23:35:202
1018343280,1sleep00-21swapper/023:35:180
994539270,4sleep2994302-21sendmail-msp23:20:052
984238271,3sleep1978906-21/usr/sbin/munin23:10:261
977625270,1sleep2222-21plymouthd23:07:182
972773270,4sleep1974403-21tr23:05:201
962618270,4sleep2962624-21ssh22:59:282
951101270,4sleep0952578-21latency22:50:200
899678270,2sleep2222-21plymouthd22:18:512
877411271,3sleep1222-21plymouthd22:05:181
867580271,3sleep0222-21plymouthd21:56:560
860460270,1sleep00-21swapper/021:53:550
853374271,2sleep10-21swapper/121:50:111
851768270,3sleep1222-21plymouthd21:46:261
796634270,1sleep10-21swapper/121:10:581
777005270,4sleep1222-21plymouthd20:55:501
767433271,3sleep10-21swapper/120:50:211
752123271,4sleep086188-21systemd-journal20:40:180
732805271,3sleep0732949-21df20:25:140
725899270,5sleep2222-21plymouthd20:18:192
725774270,4sleep0222-21plymouthd20:16:450
714918270,4sleep0222-21plymouthd20:10:190
694208271,3sleep1693956-21apt-get19:55:051
693700270,1sleep20-21swapper/219:52:092
687159270,1sleep20-21swapper/219:46:042
675133270,5sleep2674701-21sendmail-msp19:40:182
674460270,1sleep10-21swapper/119:37:411
667464270,1sleep0222-21plymouthd19:30:260
667370271,3sleep2667409-21ntp_states19:30:242
661569270,1sleep10-21swapper/119:26:261
656862270,4sleep2657850-21cat19:25:192
654440270,4sleep1654481-21collect219:20:251
649279271,3sleep2649051-21sendmail-msp19:20:142
1118722270,5sleep20-21swapper/200:36:232
1113331271,3sleep1222-21plymouthd00:35:211
1104628271,3sleep11104665-21apt-get00:30:121
1103957270,4sleep134-21ksoftirqd/100:29:041
1088518270,5sleep01088783-21latency_hist00:20:010
1080450270,1sleep11080456-21ssh00:14:161
1071767270,1sleep1222-21plymouthd00:06:431
1062927271,3sleep11062958-21ntpq00:00:241
1037031270,4sleep01038884-21cut23:45:210
1025446270,1sleep1222-21plymouthd23:39:241
1010331270,3sleep21010336-21apt-get23:30:112
1009725270,1sleep10-21swapper/123:29:141
978112260,1sleep00-21swapper/023:08:400
952752261,2sleep20-21swapper/222:50:222
924092260,3sleep0924299-21hddtemp_smartct22:35:150
921443260,3sleep2921554-21systemctl22:30:252
913607261,3sleep1913643-21ssh22:25:231
906612260,1sleep00-21swapper/022:21:010
861237261,2sleep20-21swapper/221:55:132
859357260,1sleep20-21swapper/221:50:482
850844260,3sleep2850890-21ntp_states21:45:232
843075261,2sleep00-21swapper/021:40:280
837142260,1sleep00-21swapper/021:39:480
834990261,3sleep10-21swapper/121:35:231
828420260,1sleep10-21swapper/121:32:111
805266260,3sleep2222-21plymouthd21:18:212
776994261,2sleep0222-21plymouthd20:55:410
770735260,3sleep0222-21plymouthd20:52:010
763663261,2sleep20-21swapper/220:45:212
745509260,3sleep1222-21plymouthd20:35:061
726316261,2sleep1726349-21apt-get20:20:101
719947261,2sleep10-21swapper/120:15:131
712908260,2sleep2222-21plymouthd20:05:482
707281260,3sleep1707337-21cut20:05:151
703714261,2sleep00-21swapper/020:00:210
687212260,1sleep00-21swapper/019:46:420
686479261,3sleep1686525-21ntpq19:45:221
668561261,2sleep20-21swapper/219:35:132
634383261,2sleep00-21swapper/019:10:130
1104670261,2sleep20-21swapper/200:30:132
1097250260,4sleep01097994-21ssh00:25:180
1095854260,3sleep21095860-21ssh00:23:232
1070844260,3sleep01070968-21sensors_temp00:05:290
1041713261,2sleep10-21swapper/123:50:071
986738250,2sleep00-21swapper/023:15:140
893173250,2sleep10-21swapper/122:15:171
876944250,3sleep0222-21plymouthd22:05:130
789939250,3sleep10-21swapper/121:06:331
764359251,2sleep10-21swapper/120:47:121
712246250,3sleep0712299-21ntp_kernel_pll_20:05:220
687806250,3sleep0687889-21expr19:50:150
661568250,2sleep0222-21plymouthd19:26:250
1011956240,1sleep0222-21plymouthd23:30:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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