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2026-09-17 - 13:38
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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 highest latencies:
System rackeslot8.osadl.org (updated Thu Sep 17, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
643453992926,1cyclictest0-21swapper/321:20:253
643453992825,1cyclictest0-21swapper/319:20:243
643453992724,1cyclictest0-21swapper/320:00:183
643453992623,1cyclictest0-21swapper/323:40:153
643453992623,1cyclictest0-21swapper/322:20:013
643453992421,1cyclictest0-21swapper/321:00:273
643453992421,1cyclictest0-21swapper/319:40:173
643453992420,1cyclictest0-21swapper/322:20:193
643453992320,1cyclictest0-21swapper/323:00:243
643453992320,1cyclictest0-21swapper/321:40:153
643453992219,1cyclictest0-21swapper/300:21:373
643453992219,1cyclictest0-21swapper/300:00:283
643453992118,1cyclictest0-21swapper/321:40:013
643453992017,1cyclictest0-21swapper/323:21:103
643453992017,1cyclictest0-21swapper/322:40:193
643453992017,1cyclictest0-21swapper/320:40:123
643453992017,1cyclictest0-21swapper/319:30:263
64345399201,15cyclictest1110893-21taskset00:30:143
64345399192,13cyclictest728441-21turbostat20:15:013
643453991916,1cyclictest0-21swapper/321:10:003
64345399191,14cyclictest1048184-21turbostat23:50:013
64345399191,13cyclictest773099-21turbostat20:49:593
64345399182,13cyclictest969421-21taskset22:57:373
643453991815,1cyclictest0-21swapper/322:01:263
643453991814,1cyclictest0-21swapper/319:48:383
64345399181,13cyclictest986550-21taskset23:10:173
64345399181,13cyclictest947517-21taskset22:45:153
64345399181,13cyclictest929936-21taskset22:31:373
64345399181,13cyclictest892135-21turbostat22:10:013
64345399181,13cyclictest813563-21taskset21:18:153
64345399181,13cyclictest785792-21turbostat21:00:003
64345399181,13cyclictest735100-21taskset20:20:133
64345399181,13cyclictest649642-21taskset19:13:433
64345399181,13cyclictest649642-21taskset19:13:423
64345399181,13cyclictest1122997-21taskset00:35:193
64345399181,13cyclictest1109231-21taskset00:26:133
64345399181,13cyclictest1085764-21taskset00:11:053
64345399181,13cyclictest1079325-21taskset00:09:503
64345399181,13cyclictest1055932-21taskset23:54:583
64345399181,12cyclictest1062489-21taskset23:56:193
8535282171,1sleep30-21swapper/321:45:113
64345399172,12cyclictest938050-21taskset22:37:213
64345399172,12cyclictest868038-21taskset21:53:033
643453991714,1cyclictest0-21swapper/322:50:193
643453991714,1cyclictest0-21swapper/321:11:373
643453991714,1cyclictest0-21swapper/321:11:363
643453991714,1cyclictest0-21swapper/320:35:173
643453991714,1cyclictest0-21swapper/320:30:193
643453991713,1cyclictest0-21swapper/300:15:153
64345399171,13cyclictest829287-21taskset21:28:423
64345399171,13cyclictest703182-21taskset19:55:113
64345399171,13cyclictest1024471-21taskset23:33:543
64345399171,12cyclictest993970-21taskset23:15:053
64345399171,12cyclictest898267-21taskset22:10:273
64345399171,12cyclictest875540-21taskset21:57:253
64345399171,12cyclictest779072-21taskset20:50:353
64345399171,12cyclictest677958-21taskset19:35:153
64345399171,12cyclictest1030437-21taskset23:35:223
64345399171,12cyclictest1015502-21taskset23:25:313
64345399170,13cyclictest984382-21taskset23:05:443
64345399170,13cyclictest984382-21taskset23:05:443
64345399170,13cyclictest922350-21taskset22:27:043
643453991613,1cyclictest0-21swapper/320:25:153
643453991613,1cyclictest0-21swapper/319:20:013
64345399161,12cyclictest836365-21taskset21:31:473
64345399161,12cyclictest734653-21taskset20:18:283
64345399161,12cyclictest715966-21taskset20:05:103
64345399161,12cyclictest701941-21taskset19:50:223
64345399151,11cyclictest670652-21taskset19:26:023
8872442141,8sleep2889062-21kthreadcore22:05:192
7416882141,2sleep00-21swapper/020:25:160
7364782141,10sleep1737823-21kthreadcore20:20:201
7147942141,10sleep2714822-21ntpq20:00:252
8285482131,4sleep2828554-21ssh21:26:422
10329642131,9sleep01032639-21sendmail-msp23:40:120
9452902120,1sleep20-21swapper/222:40:302
9221342120,9sleep2922140-21ssh22:26:302
8372892129,2sleep2829008-21kworker/u16:0-events_unbound21:34:202
8283392120,9sleep1828343-21ssh21:26:011
8198552120,1sleep10-21swapper/121:20:241
8055892121,3sleep2805596-21diskmemload21:12:512
8055892121,3sleep2805596-21diskmemload21:12:502
6843532120,9sleep1684890-21cut19:40:151
10721882121,8sleep01072390-21hddtemp_smartct00:05:180
9393052110,1sleep10-21swapper/122:40:051
8447372110,4sleep2844741-21ssh21:38:332
7880692111,7sleep0789139-21kthreadcore21:00:180
7860602111,3sleep1785832-21sendmail-msp21:00:111
7857702111,6sleep2785832-21sendmail-msp21:00:012
6602472111,7sleep1661742-21kthreadcore19:20:181
11095012110,8sleep21109507-21ssh00:27:062
10955562111,8sleep21095041-21sendmail-msp00:20:162
10708832111,3sleep11070889-21ssh00:02:591
9960802100,7sleep0997911-21kthreadcore23:15:200
9624392100,6sleep1962516-21latency_hist22:55:011
8457952100,7sleep1845883-21entropy21:40:151
8432892101,6sleep0843410-21cat21:35:260
7796932102,4sleep0779725-21apt-get20:55:140
6791592101,6sleep1680948-21kthreadcore19:35:181
6372592101,4sleep20-21swapper/219:05:132
10894612101,6sleep11091178-21kthreadcore00:15:181
10626662100,8sleep11062671-21sh23:56:541
10475342101,6sleep21000-21snmpd23:48:132
10256442100,6sleep11026156-21irqrtprio23:35:171
962989290,6sleep1962782-21/usr/sbin/munin22:55:171
923686290,1sleep10-21swapper/122:30:111
867861290,6sleep0867869-21ssh21:52:380
851790290,2sleep2845343-21sendmail-msp21:41:092
821260290,6sleep0821266-21ssh21:22:500
820805290,2sleep20-21swapper/221:21:332
754482290,6sleep2754649-21interrupts20:35:152
714874292,4sleep0714978-21python320:00:270
664283291,2sleep2872-21in:imuxsock19:20:522
1116145290,6sleep01116201-21ssh00:30:240
1080992290,6sleep21081995-21kthreadcore00:10:182
1056473290,2sleep21056631-21ssh23:55:152
1048488290,2sleep1171rcu_preempt23:50:121
1048446291,5sleep01048487-21ssh23:50:110
1017402291,4sleep01017436-21apt-get23:30:100
986433280,5sleep2986227-21/usr/sbin/munin23:10:172
975869281,4sleep1975903-21ssh23:00:211
931946281,4sleep2932693-21cut22:35:162
915905281,3sleep0915907-21apt-get22:25:120
914792280,1sleep20-21swapper/222:22:512
913366281,4sleep0913401-21ssh22:20:240
900205281,4sleep1900244-21apt-get22:15:151
861477281,4sleep1861683-21hddtemp_smartct21:50:131
861262281,3sleep2861297-21apt-get21:50:102
858780281,4sleep1858825-21ntpq21:45:211
845713281,4sleep0845791-21grep21:40:140
773335281,4sleep0773368-21apt-get20:50:120
761019281,4sleep2761945-21irqstats20:40:172
752965281,4sleep1753002-21ntpq20:30:221
740917280,6sleep0734837-21sendmail-msp20:21:350
730719281,4sleep0732537-21cut20:15:210
722345281,3sleep0722367-21apt-get20:10:130
677014280,1sleep10-21swapper/119:31:371
657156280,5sleep1657243-21ntp_kernel_err19:15:221
646546280,6sleep2648497-21grep19:10:182
646546280,6sleep2648497-21grep19:10:182
1115146281,4sleep11115966-21sed00:30:211
1110888280,5sleep20-21swapper/200:30:142
1094976281,4sleep21095015-21munin-run00:20:002
1064101281,4sleep23594167-21systemd-journal00:00:112
1039171280,2sleep21039177-21ssh23:41:282
1022631281,4sleep21022680-21ntpq23:30:212
1018378280,5sleep11019101-21kthreadcore23:30:161
1008087281,4sleep01001532-21sendmail-msp23:21:290
1007139281,4sleep21007180-21ntp_states23:20:232
985460270,1sleep10-21swapper/123:08:481
985460270,1sleep10-21swapper/123:08:471
983568271,3sleep0983658-21ntpq23:05:220
983568271,3sleep0983658-21ntpq23:05:210
981528271,3sleep2983181-21kthreadcore23:05:202
981528271,3sleep2983181-21kthreadcore23:05:192
976169270,4sleep2976336-21ssh23:00:272
949938271,3sleep20-21swapper/222:45:192
947676271,3sleep0948617-21irqstats22:45:180
939384271,3sleep0939538-21df22:40:120
938971270,4sleep0939063-21922:40:000
907926271,3sleep1907708-21sendmail-msp22:20:051
905317271,3sleep2905422-21ntpq22:15:252
884651271,2sleep00-21swapper/022:05:120
878245270,4sleep2879531-21grep22:00:172
871067271,3sleep0872834-21kthreadcore21:55:190
853484271,3sleep2853519-21apt-get21:45:102
853446271,3sleep0853453-21diskmemload21:45:040
843681270,4sleep1843687-21ssh21:35:311
836938270,1sleep00-21swapper/021:33:250
828642270,4sleep0828648-21ssh21:26:560
813721270,4sleep2813727-21ssh21:18:522
769380270,5sleep0771256-21kthreadcore20:45:200
766984271,3sleep1767017-21apt-get20:45:131
753092270,4sleep0753215-21python320:30:250
746442271,3sleep1746582-21ntpq20:25:201
712527270,4sleep1714164-21grep20:00:201
696785270,3sleep1696818-21apt-get19:50:131
671231271,3sleep0671264-21apt-get19:30:120
657252271,3sleep2657287-21ntpq19:15:232
652158270,3sleep0652191-21apt-get19:15:130
639391271,3sleep0641265-21kthreadcore19:05:180
1101487271,4sleep11095041-21sendmail-msp00:21:191
1087540270,4sleep01087700-21df_inode00:15:120
1079758270,3sleep11079764-21ssh00:10:131
1072906270,4sleep21073736-21cut00:05:212
1049878271,3sleep20-21swapper/223:50:172
1031095270,1sleep00-21swapper/023:35:440
1025206270,4sleep21025360-21df23:35:142
1011899270,4sleep11013669-21grep23:25:191
1000455270,4sleep1929669-21kworker/u16:1+rpciod23:17:121
994043260,3sleep20-21swapper/223:15:132
991706260,3sleep1991822-21find23:10:281
968041260,3sleep0968081-21ntpq22:55:240
962781261,2sleep20-21swapper/222:55:142
954969261,2sleep20-21swapper/222:50:132
952453261,2sleep10-21swapper/122:45:231
931474261,2sleep1931513-21apt-get22:35:111
929826260,4sleep2929828-21ssh22:31:162
921921260,1sleep10-21swapper/122:25:491
905474260,3sleep0905527-21ntp_states22:15:260
899309260,1sleep10-21swapper/122:13:281
899252260,1sleep00-21swapper/022:13:190
897734261,2sleep2897762-21ntpq22:10:242
886040260,3sleep1887242-21kthreadcore22:05:181
883549260,4sleep1786258-21kworker/u16:5+rpciod22:02:491
883463260,3sleep0883471-21ssh22:02:360
875397260,1sleep10-21swapper/121:57:041
807851261,3sleep1808822-21cat21:15:191
798899261,2sleep0798936-21apt-get21:10:130
798899261,2sleep0798936-21apt-get21:10:130
778476260,3sleep2778518-21ntpq20:50:232
759275260,3sleep0759320-21awk20:35:220
740884261,3sleep23594167-21systemd-journal20:21:092
722370261,2sleep10-21swapper/120:10:141
721926260,1sleep20-21swapper/220:08:132
715968261,2sleep00-21swapper/020:05:110
715957260,3sleep1715688-21apt-get20:05:031
702632260,1sleep00-21swapper/019:52:010
702602260,1sleep20-21swapper/219:51:392
689830261,3sleep0683720-21sendmail-msp19:41:030
684891261,3sleep2872-21in:imuxsock19:40:152
678508262,2sleep0679156-21kthreadcore19:35:170
670048261,3sleep1670097-21ld19:25:201
665831261,2sleep00-21swapper/019:25:150
642553260,2sleep30-21swapper/319:05:263
1125660261,3sleep2431ktimers/200:38:432
1119195260,3sleep01120074-21irqstats00:35:160
1109546260,1sleep10-21swapper/100:27:121
1100491261,3sleep00-21swapper/000:20:220
1085978260,4sleep01085984-21ssh00:11:400
1061507261,2sleep01061550-21ntpq23:55:210
1032858260,4sleep11032639-21sendmail-msp23:40:011
1016923260,1sleep20-21swapper/223:29:282
1004531260,4sleep11005999-21kthreadcore23:20:181
986267250,2sleep00-21swapper/023:10:150
977990251,2sleep00-21swapper/023:04:410
925959250,2sleep00-21swapper/022:30:180
869045250,2sleep20-21swapper/221:55:132
832665250,2sleep10-21swapper/121:30:171
807166250,2sleep00-21swapper/021:15:180
793904250,3sleep0795081-21cut21:05:200
792503250,2sleep20-21swapper/221:05:142
786096250,2sleep20-21swapper/221:00:122
785432250,3sleep10-21swapper/120:55:391
767020250,2sleep20-21swapper/220:45:142
765827250,2sleep10-21swapper/120:40:241
762987250,2sleep0221rcuc/020:40:180
747805250,1sleep20-21swapper/220:30:032
742655250,2sleep20-21swapper/220:25:172
734591250,1sleep10-21swapper/120:17:381
728703250,2sleep20-21swapper/220:15:152
724220250,2sleep20-21swapper/220:10:192
709079250,1sleep00-21swapper/019:58:050
705777251,2sleep10-21swapper/119:55:181
703146250,2sleep20-21swapper/219:55:112
696489250,1sleep10-21swapper/119:49:411
690447250,2sleep20-21swapper/219:45:132
676348251,2sleep20-21swapper/219:30:212
659696250,3sleep0660244-21kthreadcore19:20:170
643274250,3sleep1643598-21tar19:10:011
643274250,3sleep1643598-21tar19:10:001
1109516250,3sleep00-21swapper/000:27:070
1071978250,2sleep10-21swapper/100:05:161
1071339250,1sleep00-21swapper/000:04:110
1043664250,2sleep10-21swapper/123:45:191
1011058250,2sleep00-21swapper/023:25:180
954929240,1sleep00-21swapper/022:50:060
798941240,1sleep10-21swapper/121:10:141
798941240,1sleep10-21swapper/121:10:131
795082240,2sleep10-21swapper/121:05:211
773371240,1sleep10-21swapper/120:50:131
757036240,2sleep1758978-21kthreadcore20:35:191
692268240,2sleep00-21swapper/019:45:190
670748240,3sleep20-21swapper/219:27:182
643651240,1sleep00-21swapper/019:10:120
643651240,1sleep00-21swapper/019:10:110
637228240,1sleep10-21swapper/119:05:121
1120075240,1sleep10-21swapper/100:35:171
677552230,1sleep20-21swapper/219:35:112
1040737230,1sleep00-21swapper/023:45:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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