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2026-08-19 - 07:10
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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 19, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
399093521220,2sleep1321rcuc/122:05:151
41264682320,1sleep1321rcuc/123:30:191
3748025992825,1cyclictest0-21swapper/321:40:233
3748025992723,2cyclictest0-21swapper/320:00:203
3748025992622,1cyclictest0-21swapper/323:30:133
3748025992522,1cyclictest0-21swapper/319:20:073
3748025992522,1cyclictest0-21swapper/300:35:193
3748025992421,1cyclictest0-21swapper/322:40:433
3748025992420,1cyclictest0-21swapper/300:20:113
3748025992320,1cyclictest0-21swapper/323:40:233
3748025992320,1cyclictest0-21swapper/320:20:183
374802599222,15cyclictest4170550-21taskset23:58:033
374802599222,15cyclictest3775706-21taskset19:29:333
3748025992219,1cyclictest0-21swapper/322:00:143
3748025992219,1cyclictest0-21swapper/321:05:273
3748025992219,1cyclictest0-21swapper/320:40:063
3748025992118,1cyclictest0-21swapper/323:00:293
3748025992118,1cyclictest0-21swapper/323:00:293
3748025992118,1cyclictest0-21swapper/321:50:213
3748025992118,1cyclictest0-21swapper/321:20:253
3748025992118,1cyclictest0-21swapper/321:00:193
3748025992118,1cyclictest0-21swapper/319:40:313
3748025992118,1cyclictest0-21swapper/319:40:313
3748025992118,1cyclictest0-21swapper/300:00:223
3748025992017,1cyclictest0-21swapper/321:45:263
3748025992017,1cyclictest0-21swapper/320:40:013
3748025992017,1cyclictest0-21swapper/320:05:233
3748025992017,1cyclictest0-21swapper/300:20:003
3748025992017,1cyclictest0-21swapper/300:10:253
374802599201,15cyclictest3918432-21taskset21:16:213
374802599201,15cyclictest3918432-21taskset21:16:213
374802599199,7cyclictest40930642sleep323:10:133
374802599199,7cyclictest39417392sleep321:30:383
374802599197,9cyclictest3884988-21taskset20:55:003
3748025991916,1cyclictest0-21swapper/323:20:353
3748025991916,1cyclictest0-21swapper/320:30:243
374802599191,14cyclictest4053681-21taskset22:45:063
374802599191,14cyclictest3950235-21taskset21:37:263
374802599191,14cyclictest3839748-21taskset20:19:503
374802599191,14cyclictest3782099-21taskset19:34:383
374802599191,14cyclictest17834-21taskset00:25:173
374802599190,14cyclictest3814110-21taskset19:59:563
374802599182,12cyclictest4161918-21taskset23:50:413
3748025991815,1cyclictest0-21swapper/322:55:183
3748025991815,1cyclictest0-21swapper/322:25:193
3748025991815,1cyclictest0-21swapper/322:10:183
374802599181,13cyclictest4154654-21taskset23:47:203
374802599181,13cyclictest4138523-21taskset23:36:223
374802599181,13cyclictest4092663-21taskset23:09:573
374802599181,13cyclictest4044098-21taskset22:36:083
374802599181,13cyclictest4020578-21taskset22:21:123
374802599181,13cyclictest3904725-21taskset21:10:173
374802599181,13cyclictest3884536-21taskset20:52:283
374802599181,13cyclictest3754393-21sleep19:15:003
374802599177,7cyclictest40139352sleep322:19:533
3748025991714,1cyclictest0-21swapper/300:05:303
374802599171,13cyclictest4108212-21taskset23:19:223
374802599171,13cyclictest4036385-21taskset22:31:273
374802599171,13cyclictest3934170-21taskset21:26:243
374802599171,13cyclictest3934170-21taskset21:26:243
374802599171,13cyclictest3851930-21taskset20:25:263
374802599171,13cyclictest3833190-21taskset20:12:193
374802599171,13cyclictest31094-21taskset00:31:073
374802599171,12cyclictest4122836-21taskset23:26:083
374802599171,12cyclictest3991226-21chrt22:05:183
374802599171,12cyclictest3807412-21taskset19:50:583
374802599171,12cyclictest3799803-21taskset19:45:213
374802599171,12cyclictest3788147-21taskset19:35:353
374802599171,12cyclictest3762859-21taskset19:19:563
374802599170,13cyclictest3981134-21taskset21:56:073
40439922160,12sleep04043994-21ssh22:35:460
38658852161,5sleep13865998-21perl20:40:171
3748025991613,1cyclictest0-21swapper/322:50:173
374802599160,13cyclictest3872174-21taskset20:45:023
39130202151,11sleep23912186-21/usr/sbin/munin21:15:172
39130202151,11sleep23912186-21/usr/sbin/munin21:15:172
41030922141,5sleep04104764-21kthreadcore23:15:190
40305272141,5sleep04031080-21ps22:30:160
41652722130,4sleep24166694-21ssh23:55:182
39811782130,10sleep13981184-21ssh21:56:141
39203012130,2sleep03903989-21diskmemload21:20:210
164442130,10sleep216448-21ssh00:24:012
40766412120,6sleep014-21ksoftirqd/022:59:110
40371532121,8sleep14037158-21sh22:33:391
40142792121,8sleep24014049-21sendmail-msp22:20:042
39889162121,8sleep13988922-21ssh22:00:511
39648452120,9sleep23964954-21python321:45:292
39411462121,4sleep23941178-21ntpq21:30:252
38901782121,8sleep13885003-21/usr/sbin/munin20:55:241
41867932110,7sleep24186799-21ssh00:09:222
41620512110,4sleep00-21swapper/023:51:030
40670172110,8sleep24067146-21cat22:50:282
38931892111,7sleep03894588-21kthreadcore21:00:200
37821272112,5sleep03782217-21cut19:35:010
37693442111,6sleep21-21systemd19:25:002
263922111,3sleep1222-21plymouthd00:30:171
112282110,8sleep012532-21cut00:20:180
41869952100,7sleep04187001-21ssh00:09:520
41784812100,7sleep14178487-21ssh00:03:031
41401702100,1sleep00-21swapper/023:40:090
40524252100,7sleep14052433-21ssh22:42:251
39372082100,7sleep03938331-21cut21:30:190
39280102101,4sleep03928004-21apt-get21:25:140
39280102101,4sleep03928004-21apt-get21:25:130
38859682100,7sleep03886978-21grep20:55:190
38606812100,7sleep23861654-21tr20:35:202
38589932100,2sleep0222-21plymouthd20:34:510
38538262100,7sleep13854497-21kthreadcore20:30:181
38350732100,7sleep23836571-21kthreadcore20:15:192
38080012101,6sleep13808034-21apt-get19:55:141
37477432100,2sleep2222-21plymouthd19:08:092
37419912104,3sleep03742152-21sed19:05:140
355682101,6sleep137424-21tr00:35:201
328362101,4sleep232869-21apt-get00:35:122
323202100,7sleep232326-21ssh00:34:312
4146210290,6sleep24139905-21sendmail-msp23:40:432
4099762290,2sleep2222-21plymouthd23:12:442
4084331290,7sleep24084337-21ssh23:03:312
4084331290,7sleep24084337-21ssh23:03:302
4083264290,3sleep14083270-21ssh23:00:331
4083264290,3sleep14083270-21ssh23:00:331
4052662291,5sleep24052668-21ssh22:43:012
4052326290,2sleep0222-21plymouthd22:42:070
4035668291,5sleep24035791-21sed22:30:272
4029168295,2sleep20-21swapper/222:28:142
4019805291,5sleep14019838-21ntp_states22:20:271
4006495291,4sleep04006497-21apt-get22:15:130
3995999290,3sleep03996046-21ntpq22:05:230
3981827290,1sleep20-21swapper/221:58:042
3980347291,5sleep03980399-21ntpq21:55:240
3950651290,1sleep00-21swapper/021:38:320
3934944290,3sleep23934950-21ssh21:28:362
3934944290,3sleep23934950-21ssh21:28:362
3927068290,2sleep1222-21plymouthd21:23:261
3926331290,6sleep23926340-21ssh21:21:182
3879050290,6sleep03879298-21irqcore20:50:170
3870999291,4sleep23865463-21sendmail-msp20:40:252
3859310291,4sleep03859313-21apt-get20:35:140
3852394290,2sleep2222-21plymouthd20:27:062
3801606290,4sleep03801338-21apt-get19:50:040
3753414291,4sleep03753448-21ntpq19:10:230
8843280,1sleep10-21swapper/100:19:551
8496281,4sleep28500-21ssh00:19:002
4193870280,1sleep03903989-21diskmemload00:12:000
4148092281,4sleep0222-21plymouthd23:45:140
4146806282,3sleep1222-21plymouthd23:42:271
4116423281,3sleep0222-21plymouthd23:25:010
4116247281,4sleep0222-21plymouthd23:24:380
4115412280,2sleep14115418-21ssh23:22:181
4108795281,4sleep272-21kcompactd023:20:062
4091900280,1sleep20-21swapper/223:07:512
4082725281,4sleep04082755-21ntpq23:00:280
4082725281,4sleep04082755-21ntpq23:00:280
4076789280,1sleep20-21swapper/222:59:412
4053680281,4sleep21000-21snmpd22:45:062
4045463280,2sleep14045469-21ssh22:39:561
4020874280,2sleep0222-21plymouthd22:22:000
4004700281,4sleep2222-21plymouthd22:11:062
3988244281,4sleep03988291-21ntpq22:00:260
3988149281,4sleep23988192-21ntpq22:00:242
3957537281,4sleep0222-21plymouthd21:40:450
3957472283,3sleep2249-21jbd2/sda2-821:40:352
3943651281,3sleep20-21swapper/221:35:142
3927955281,4sleep13927961-21ssh21:25:101
3927955281,4sleep13927961-21ssh21:25:101
3912404281,4sleep03912607-21/usr/sbin/munin21:15:150
3912404281,4sleep03912607-21/usr/sbin/munin21:15:150
3909994280,2sleep2222-21plymouthd21:10:282
3905775281,4sleep13907317-21kthreadcore21:10:191
3903949280,1sleep10-21swapper/121:09:511
3872656281,4sleep03873587-21irqstats20:45:160
3853071281,5sleep23853117-21cut20:30:152
3839592280,1sleep1222-21plymouthd20:17:471
3821192281,1sleep2222-21plymouthd20:05:212
3814492281,4sleep13814600-21diskstats20:00:151
3814398281,5sleep2222-21plymouthd20:00:082
3788970281,4sleep03788551-21sendmail-msp19:40:180
3788970281,4sleep03788551-21sendmail-msp19:40:180
3787693281,4sleep23787808-21python319:35:262
3776202281,3sleep1222-21plymouthd19:30:161
3774809281,4sleep23774860-21ntpq19:25:202
3769642281,3sleep03769645-21apt-get19:25:100
3761792281,4sleep23761912-21ntpq19:15:222
3754249280,1sleep20-21swapper/219:13:382
3753799281,4sleep13753993-21users19:10:281
3747876282,2sleep1222-21plymouthd19:09:521
25006281,4sleep025012-21ssh00:30:120
23780281,3sleep00-21swapper/000:27:410
7312271,3sleep0222-21plymouthd00:15:410
4193774270,4sleep24193780-21ssh00:11:462
4178878270,1sleep20-21swapper/200:04:092
4171641271,3sleep04171340-21sendmail-msp00:00:130
4168964271,4sleep14169016-21ld23:55:211
4154796270,1sleep10-21swapper/123:47:441
4153639270,4sleep24153831-21sed23:45:282
4138979270,4sleep24138985-21ssh23:37:382
4138536270,1sleep1222-21plymouthd23:36:251
4130968270,4sleep24130974-21ssh23:32:052
4116702271,4sleep24116724-21apt-get23:25:112
4108363270,4sleep24108369-21ssh23:19:462
4100947270,3sleep14100984-21apt-get23:15:121
4093151270,1sleep10-21swapper/123:10:151
4091843270,4sleep14091849-21ssh23:07:421
4067433270,4sleep14067439-21ssh22:50:301
4059772270,4sleep14059780-21ssh22:45:571
4043543273,2sleep23903989-21diskmemload22:35:282
4029665270,4sleep14029669-21ssh22:29:371
4024328271,4sleep04026072-21cut22:25:190
4004746271,3sleep14004748-21ssh22:11:171
39750270,2sleep0222-21plymouthd00:38:230
3974328270,4sleep13973971-21kworker/u16:4+rpciod21:53:531
3968648272,2sleep23969634-21kthreadcore21:50:172
3967214271,3sleep03967251-21apt-get21:50:110
3898261271,3sleep03898923-21irqrtprio21:05:170
3897831270,3sleep2222-21plymouthd21:05:032
3897298270,1sleep10-21swapper/121:01:531
3866945270,4sleep03865463-21sendmail-msp20:40:190
3864295271,3sleep13864437-21ntpq20:35:231
3846153270,1sleep20-21swapper/220:23:412
3840052271,3sleep1222-21plymouthd20:20:121
3839750270,5sleep00-21swapper/020:19:510
3833110270,1sleep20-21swapper/220:11:192
3827282270,3sleep13827315-21apt-get20:10:131
3820453270,1sleep00-21swapper/020:03:030
3813822270,1sleep00-21swapper/019:56:130
3801655271,3sleep2222-21plymouthd19:50:142
3801184270,1sleep20-21swapper/219:48:172
3796630271,3sleep13797976-21cat19:45:211
3788767270,5sleep23788551-21sendmail-msp19:40:042
3788767270,5sleep23788551-21sendmail-msp19:40:042
3774764271,3sleep13774807-21ntpq19:25:191
3762630270,1sleep00-21swapper/019:17:000
37480259971,3cyclictest0-21swapper/319:10:003
22756271,3sleep1222-21plymouthd00:25:281
17080270,3sleep2222-21plymouthd00:25:092
4192735260,3sleep14192781-21ntpq00:10:251
4185852260,1sleep10-21swapper/100:06:441
4170321260,3sleep0222-21plymouthd23:57:210
4156848261,2sleep20-21swapper/223:50:182
4155926261,2sleep10-21swapper/123:50:121
4138818260,1sleep00-21swapper/023:37:080
4124563260,3sleep04124716-21df23:30:150
4116653260,1sleep10-21swapper/123:25:061
4099323260,3sleep00-21swapper/023:11:300
4090382260,3sleep04090432-21ntpq23:05:210
4067959261,2sleep00-21swapper/022:51:580
4053696260,3sleep00-21swapper/022:45:120
4012499260,1sleep10-21swapper/122:15:501
3998780260,3sleep0151ktimers/022:10:160
3997285261,3sleep23997291-21ssh22:07:172
3959429260,3sleep10-21swapper/121:45:151
3959389261,2sleep03959426-21apt-get21:45:140
3959034260,3sleep10-21swapper/121:44:591
3950868260,3sleep1222-21plymouthd21:39:151
3942844260,1sleep10-21swapper/121:33:481
3912220261,3sleep13912218-21apt-get21:15:121
3912220261,3sleep13912218-21apt-get21:15:121
3910379262,2sleep03903989-21diskmemload21:10:540
3897269260,3sleep2222-21plymouthd21:01:312
3890869260,3sleep2222-21plymouthd20:57:052
3884559260,1sleep10-21swapper/120:52:481
3880064261,3sleep23881755-21cut20:50:192
3878142260,1sleep10-21swapper/120:47:381
3874888261,3sleep23876730-21cut20:45:182
3852547260,3sleep1222-21plymouthd20:29:061
3852324261,2sleep0222-21plymouthd20:26:120
3845969261,2sleep00-21swapper/020:21:200
3827479261,2sleep0222-21plymouthd20:10:160
3826708260,3sleep0222-21plymouthd20:06:030
3823245260,3sleep13825048-21kthreadcore20:05:241
3813866260,3sleep2222-21plymouthd19:56:482
3801619260,3sleep13801652-21apt-get19:50:131
3795698260,3sleep03796629-21irqstats19:45:190
3791659260,3sleep13793170-21cut19:40:241
3791659260,3sleep13793170-21cut19:40:231
3788357260,1sleep00-21swapper/019:38:170
3781881260,1sleep20-21swapper/219:31:502
3763616260,3sleep13764351-21cut19:20:181
3763463260,3sleep03762925-21sendmail-msp19:20:170
3757110261,2sleep1222-21plymouthd19:15:171
16129261,2sleep10-21swapper/100:23:121
4069391250,2sleep10-21swapper/122:55:111
4012692250,2sleep2222-21plymouthd22:16:272
3788230250,2sleep1222-21plymouthd19:36:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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