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2026-07-15 - 00:09
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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 rack0slot2.osadl.org (updated Tue Jul 14, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
325708925746,8sleep50-21swapper/507:08:095
325692825520,30sleep70-21swapper/707:05:547
325694623929,7sleep60-21swapper/607:06:096
3257508993331,1cyclictest0-21swapper/711:29:577
3257499993229,2cyclictest3915170-21kworker/u16:2+events_unbound12:05:114
3257502993129,2cyclictest3416929-21kworker/u16:2+flush-8:008:40:135
3257502993129,2cyclictest3416929-21kworker/u16:2+flush-8:008:40:135
3257502992826,2cyclictest3358725-21kworker/u16:0+flush-8:008:15:275
325629622815,8sleep40-21swapper/407:05:274
33982852270,1chrt3398284-21gltestperf08:20:104
3257499992724,2cyclictest3689881-21kworker/u16:2+events_unbound11:00:114
35299942260,0chrt3529992-21sh09:22:237
3257504992624,2cyclictest3766558-21kworker/u16:0+events_unbound11:20:126
3257502992624,2cyclictest3766558-21kworker/u16:0+flush-8:011:40:215
3257502992622,3cyclictest3518272-21packagekitd09:18:495
3257502992523,2cyclictest3209246-21kworker/u16:0+flush-8:007:30:105
3257504992422,2cyclictest3267071-21kworker/u16:1+flush-8:008:29:526
3257504992420,3cyclictest3754062-21latency_hist10:54:576
3257504992420,3cyclictest3754062-21latency_hist10:54:576
3257502992422,2cyclictest3689881-21kworker/u16:2+events_unbound11:10:265
3257502992422,2cyclictest3581353-21kworker/u16:1+flush-8:010:00:105
3257502992422,2cyclictest3531846-21kworker/u16:2+events_unbound10:10:115
3257502992422,2cyclictest3291478-21kworker/u16:2+flush-8:007:55:255
3257502992321,2cyclictest3839921-21kworker/u16:1+events_unbound11:35:275
3257502992321,2cyclictest3839921-21kworker/u16:1+events_unbound11:30:125
3257504992220,2cyclictest3890123-21kworker/u16:4+events_unbound11:55:216
3257504992220,2cyclictest3655489-21kworker/u16:1+events_unbound10:35:196
3257504992220,2cyclictest3333263-21kworker/u16:3+flush-8:007:49:526
3257502992220,2cyclictest3717165-21kworker/u16:3+events_unbound10:45:255
3257502992220,2cyclictest3518386-21kworker/u16:6+flush-8:010:25:125
3257502992220,2cyclictest3333263-21kworker/u16:3+events_unbound08:55:125
3257502992220,2cyclictest3333263-21kworker/u16:3+events_unbound08:25:125
3257502992220,2cyclictest3291478-21kworker/u16:2+flush-8:007:25:265
3257502992218,3cyclictest3939424-21cat12:09:515
3257504992118,2cyclictest3291478-21kworker/u16:2+events_unbound07:30:116
3257504992117,3cyclictest3791196-21cat11:09:576
3257502992119,2cyclictest3915170-21kworker/u16:2+flush-8:012:15:175
3257502992119,2cyclictest3890123-21kworker/u16:4+flush-8:011:50:125
3257502992119,2cyclictest3689881-21kworker/u16:2+events_unbound11:20:035
3257502992119,2cyclictest3358725-21kworker/u16:0+flush-8:008:20:205
325750899200,18cyclictest3976651-21sh12:24:567
3257504992018,2cyclictest3886949-21kworker/u16:1+events_unbound12:39:516
3257504992018,2cyclictest3839921-21kworker/u16:1+events_unbound11:35:176
3257502992018,2cyclictest3886949-21kworker/u16:1+events_unbound12:29:515
3257502992018,2cyclictest3518386-21kworker/u16:6+events_unbound10:20:265
3257499992016,3cyclictest3964241-21awk12:19:564
325750899190,17cyclictest1302-21snmpd11:44:177
3257504991916,2cyclictest3886949-21kworker/u16:1+flush-8:012:25:026
3257504991916,2cyclictest3516493-21kworker/u16:0+events_unbound09:25:006
3257502991917,2cyclictest3890123-21kworker/u16:4+flush-8:012:30:255
3257502991917,2cyclictest3890123-21kworker/u16:4+events_unbound12:35:155
3257502991917,2cyclictest3531846-21kworker/u16:2+flush-8:010:05:075
3257502991917,2cyclictest3518386-21kworker/u16:6+flush-8:009:30:235
3257502991917,2cyclictest3518384-21kworker/u16:4+flush-8:009:36:275
3257502991917,2cyclictest3518384-21kworker/u16:4+flush-8:009:25:285
3257502991915,3cyclictest3890000-21latency_hist11:49:575
3257499991915,3cyclictest3580991-21latency_hist09:44:574
37164072180,1sleep40-21swapper/410:39:054
325750899180,17cyclictest0-21swapper/709:18:567
3257502991816,2cyclictest3689881-21kworker/u16:2+flush-8:011:00:195
3257502991816,2cyclictest3358725-21kworker/u16:0+events_unbound08:05:125
3257502991815,2cyclictest3518386-21kworker/u16:6+flush-8:009:45:035
3257499991814,3cyclictest3494233-21latency_hist09:09:574
3257499991813,4cyclictest3518272-21packagekitd09:19:094
3257508991716,0cyclictest0-21swapper/710:56:037
3257508991716,0cyclictest0-21swapper/710:56:037
3257508991714,2cyclictest3939478-21turbostat12:09:567
3257508991713,3cyclictest1302-21snmpd08:38:227
3257508991713,3cyclictest1302-21snmpd07:59:547
325750899170,11cyclictest0-21swapper/712:10:217
3257504991715,2cyclictest3518384-21kworker/u16:4+flush-8:009:40:216
325750499170,3cyclictest3966659-21kthreadcore12:20:156
3257502991715,2cyclictest3689881-21kworker/u16:2+events_unbound10:54:485
3257502991715,2cyclictest3689881-21kworker/u16:2+events_unbound10:54:485
3257502991715,2cyclictest3358725-21kworker/u16:0+flush-8:008:00:155
3257502991715,2cyclictest3209246-21kworker/u16:0+flush-8:007:15:035
3257499991712,4cyclictest3877648-21awk11:44:574
38156432160,1sleep5741rcuc/511:19:375
325750899167,8cyclictest5861-21gmain12:30:187
3257508991612,3cyclictest1302-21snmpd12:03:127
325750899160,1cyclictest0-21swapper/710:40:227
325750899160,1cyclictest0-21swapper/707:25:237
325750899160,14cyclictest0-21swapper/711:35:227
325750899160,14cyclictest0-21swapper/707:45:247
3257504991614,2cyclictest3890123-21kworker/u16:4+events_unbound12:10:146
3257504991614,2cyclictest3267071-21kworker/u16:1+events_unbound08:15:126
3257504991613,2cyclictest3267071-21kworker/u16:1+flush-8:008:40:236
3257504991613,2cyclictest3267071-21kworker/u16:1+flush-8:008:40:236
3257502991615,1cyclictest0-21swapper/507:35:215
3257502991614,2cyclictest3890123-21kworker/u16:4+events_unbound12:02:275
3257502991614,2cyclictest3741857-21kworker/u16:4+events_unbound10:55:335
3257502991614,2cyclictest3741857-21kworker/u16:4+events_unbound10:55:335
3257502991614,2cyclictest3689881-21kworker/u16:2+events_unbound10:39:595
3257502991614,2cyclictest3655489-21kworker/u16:1+events_unbound10:17:485
3257502991614,2cyclictest3630765-21kworker/u16:0+flush-8:010:35:495
3257502991614,2cyclictest3518384-21kworker/u16:4+flush-8:009:50:375
3257502991614,2cyclictest3333263-21kworker/u16:3+events_unbound09:13:385
3257502991614,2cyclictest3209246-21kworker/u16:0+events_unbound07:10:045
3257502991612,2cyclictest3886949-21kworker/u16:1+events_unbound11:55:315
3257502991612,2cyclictest3516493-21kworker/u16:0+events_unbound09:21:455
3257499991613,3cyclictest3209246-21kworker/u16:0+flush-8:007:40:124
3257499991612,3cyclictest3667551-21latency_hist10:19:574
325749999160,1cyclictest0-21swapper/411:26:054
325750899157,7cyclictest6124-21gmain09:27:587
325750899154,5cyclictest6233-21gvfs-afc-volume09:38:317
325750899150,14cyclictest0-21swapper/710:25:227
325750899150,13cyclictest0-21swapper/709:00:237
3257504991513,2cyclictest3689881-21kworker/u16:2+events_unbound10:40:206
3257504991513,2cyclictest3630765-21kworker/u16:0+flush-8:010:10:226
3257504991513,2cyclictest3531846-21kworker/u16:2+events_unbound09:55:276
3257504991513,2cyclictest3531846-21kworker/u16:2+events_unbound09:48:086
325750499150,1cyclictest0-21swapper/612:00:326
325750499150,1cyclictest0-21swapper/610:17:546
325750499150,15cyclictest0-21swapper/611:34:126
3257502991513,2cyclictest3915170-21kworker/u16:2+flush-8:012:20:065
3257502991513,2cyclictest3689881-21kworker/u16:2+events_unbound10:33:505
3257502991513,2cyclictest3531846-21kworker/u16:2+flush-8:009:55:225
3257502991513,2cyclictest3531846-21kworker/u16:2+events_unbound09:44:485
3257502991513,2cyclictest3465473-21kworker/u16:2+events_unbound09:05:045
3257502991513,2cyclictest3267071-21kworker/u16:1+flush-8:008:30:205
3257499991511,3cyclictest3397160-21latency_hist08:19:574
325749999150,15cyclictest0-21swapper/411:16:564
325749999150,15cyclictest0-21swapper/409:12:134
3257504991413,1cyclictest0-21swapper/612:17:436
3257504991413,1cyclictest0-21swapper/611:12:466
3257504991413,1cyclictest0-21swapper/610:27:126
3257504991412,2cyclictest3267071-21kworker/u16:1+flush-8:009:20:256
3257504991411,3cyclictest3333263-21kworker/u16:3+events_unbound09:13:586
3257504991410,3cyclictest3557596-21cat09:35:126
325750499140,1cyclictest0-21swapper/611:41:186
325750499140,14cyclictest0-21swapper/610:08:366
3257502991412,2cyclictest3886949-21kworker/u16:1+events_unbound12:11:585
3257502991412,2cyclictest3333263-21kworker/u16:3+events_unbound08:36:035
3257499991413,1cyclictest0-21swapper/410:07:524
3257499991413,1cyclictest0-21swapper/409:58:064
325749999140,1cyclictest0-21swapper/410:00:094
325749999140,14cyclictest0-21swapper/412:22:414
325749999140,14cyclictest0-21swapper/412:02:014
325749999140,14cyclictest0-21swapper/411:12:224
325749999140,14cyclictest0-21swapper/411:09:504
325749999140,14cyclictest0-21swapper/410:13:334
325749999140,14cyclictest0-21swapper/409:54:004
325749999140,14cyclictest0-21swapper/408:40:134
325749999140,14cyclictest0-21swapper/408:40:134
325750899139,3cyclictest1302-21snmpd09:06:587
325750899138,4cyclictest1302-21snmpd09:47:507
325750899138,4cyclictest1302-21snmpd08:33:427
3257504991312,1cyclictest0-21swapper/611:26:016
3257504991312,1cyclictest0-21swapper/609:49:596
3257504991311,2cyclictest3689881-21kworker/u16:2+flush-8:010:30:076
3257504991311,2cyclictest3267071-21kworker/u16:1+events_unbound08:50:116
3257504991311,2cyclictest3209246-21kworker/u16:0+flush-8:007:35:276
3257504991311,2cyclictest3209246-21kworker/u16:0+flush-8:007:10:206
325750499130,1cyclictest0-21swapper/609:32:486
325750499130,13cyclictest0-21swapper/612:30:206
325750499130,13cyclictest0-21swapper/610:48:486
325750499130,13cyclictest0-21swapper/610:00:096
325750499130,0cyclictest0-21swapper/612:07:386
3257502991311,2cyclictest3689881-21kworker/u16:2+events_unbound11:05:085
3257502991311,2cyclictest3291478-21kworker/u16:2+events_unbound07:52:225
3257502991311,2cyclictest3267071-21kworker/u16:1+flush-8:008:10:115
3257499991312,1cyclictest0-21swapper/412:14:384
3257499991312,1cyclictest0-21swapper/411:56:594
3257499991312,1cyclictest0-21swapper/411:51:564
3257499991312,1cyclictest0-21swapper/411:49:254
3257499991312,1cyclictest0-21swapper/409:48:194
3257499991312,1cyclictest0-21swapper/409:28:374
325749999130,0cyclictest0-21swapper/410:52:014
325749999130,0cyclictest0-21swapper/410:52:014
325750899129,2cyclictest1302-21snmpd11:15:167
325750899129,2cyclictest1302-21snmpd11:10:077
325750899129,2cyclictest1302-21snmpd11:06:167
325750899129,2cyclictest1302-21snmpd10:48:467
325750899128,3cyclictest1302-21snmpd11:01:287
325750899128,3cyclictest1302-21snmpd08:45:017
325750899128,3cyclictest1302-21snmpd08:45:017
325750899128,3cyclictest1302-21snmpd07:20:237
325750899127,4cyclictest1302-21snmpd10:05:297
325750899127,4cyclictest1302-21snmpd09:14:107
325750899126,5cyclictest648-21systemd-journal10:34:567
3257508991210,1cyclictest3705847-21ssh10:35:127
325750899120,11cyclictest1302-21snmpd11:52:007
325750899120,11cyclictest0-21swapper/707:10:197
325750899120,10cyclictest0-21swapper/710:00:097
325750499129,2cyclictest6329-21evolution-calen08:33:496
3257504991211,1cyclictest0-21swapper/611:48:246
3257504991211,1cyclictest0-21swapper/611:17:206
3257504991211,1cyclictest0-21swapper/610:55:256
3257504991211,1cyclictest0-21swapper/610:55:256
3257504991211,1cyclictest0-21swapper/610:19:576
3257504991211,1cyclictest0-21swapper/608:56:336
3257504991210,2cyclictest3655489-21kworker/u16:1+flush-8:011:01:066
3257504991210,2cyclictest3416929-21kworker/u16:2+flush-8:008:35:216
325750499120,12cyclictest0-21swapper/609:19:246
3257502991210,2cyclictest3803678-21kworker/u16:4+events_unbound11:27:365
3257502991210,2cyclictest3267071-21kworker/u16:1+flush-8:008:50:525
3257502991210,2cyclictest3267071-21kworker/u16:1+flush-8:007:40:245
325750299120,12cyclictest0-21swapper/507:49:205
3257499991211,1cyclictest0-21swapper/412:30:434
3257499991211,1cyclictest0-21swapper/411:32:424
3257499991211,1cyclictest0-21swapper/409:39:304
3257499991211,1cyclictest0-21swapper/409:24:314
3257499991211,1cyclictest0-21swapper/408:08:314
3257499991211,1cyclictest0-21swapper/407:28:194
3257499991211,1cyclictest0-21swapper/407:17:454
3257499991210,2cyclictest2987690-21kworker/u16:4+events_unbound07:20:134
325749999120,1cyclictest0-21swapper/409:01:494
325749999120,1cyclictest0-21swapper/408:02:414
325750899118,2cyclictest6050-21gmain11:30:167
325750899118,2cyclictest1302-21snmpd12:35:137
325750899118,2cyclictest1302-21snmpd08:17:127
325750899118,2cyclictest1302-21snmpd07:42:367
325750899118,2cyclictest0-21swapper/710:20:227
325750899117,3cyclictest3494234-21diskmemload10:10:207
325750899117,3cyclictest1302-21snmpd11:49:237
325750899117,3cyclictest1302-21snmpd10:17:277
325750899117,3cyclictest1302-21snmpd09:54:177
325750899117,3cyclictest1302-21snmpd08:56:527
325750899117,3cyclictest1302-21snmpd08:50:287
325750899117,3cyclictest1302-21snmpd08:04:127
325750899117,3cyclictest1302-21snmpd07:50:397
325750899117,3cyclictest1302-21snmpd07:15:117
3257508991110,0cyclictest0-21swapper/709:40:107
325750899110,9cyclictest1108-21ntpd08:43:517
325750899110,9cyclictest1108-21ntpd08:43:517
325750899110,3cyclictest3750873-21sh10:50:237
325750899110,3cyclictest3750873-21sh10:50:237
325750899110,10cyclictest1302-21snmpd08:28:457
325750499119,2cyclictest3890123-21kworker/u16:4+events_unbound11:50:146
325750499117,3cyclictest3379019-21cat08:10:126
3257504991110,1cyclictest0-21swapper/609:06:296
3257504991110,1cyclictest0-21swapper/608:01:316
325750499110,1cyclictest0-21swapper/607:42:266
325750499110,0cyclictest0-21swapper/607:55:416
325750299119,2cyclictest3209246-21kworker/u16:0+events_unbound07:23:425
3257499991110,1cyclictest0-21swapper/412:35:464
3257499991110,1cyclictest0-21swapper/411:37:164
3257499991110,1cyclictest0-21swapper/410:43:214
3257499991110,1cyclictest0-21swapper/410:25:234
3257499991110,1cyclictest0-21swapper/409:34:184
3257499991110,1cyclictest0-21swapper/408:10:064
3257499991110,1cyclictest0-21swapper/407:59:324
3257499991110,1cyclictest0-21swapper/407:10:214
325750899108,1cyclictest0-21swapper/711:59:567
325750899107,2cyclictest1302-21snmpd07:32:337
325750899107,2cyclictest0-21swapper/712:25:197
325750899106,3cyclictest1302-21snmpd11:21:237
325750899106,3cyclictest1302-21snmpd09:34:567
325750899106,3cyclictest1302-21snmpd08:13:157
325750899106,3cyclictest1302-21snmpd07:35:037
325750899104,5cyclictest6233-21gvfs-afc-volume12:15:477
325750899104,4cyclictest3614865-21rm09:55:217
325750499101,8cyclictest0-21swapper/608:05:246
325750499100,2cyclictest0-21swapper/609:00:226
325750499100,10cyclictest0-21swapper/607:18:386
325750299109,1cyclictest0-21swapper/508:45:185
325750299109,1cyclictest0-21swapper/508:45:185
325750299108,2cyclictest3465473-21kworker/u16:2+flush-8:009:04:525
325749999109,1cyclictest0-21swapper/412:25:404
32575089994,4cyclictest3372678-21cut08:05:177
32575089994,4cyclictest1085-21runrttasks08:20:237
32575049998,1cyclictest0-21swapper/608:20:366
32575049998,1cyclictest0-21swapper/607:54:076
32575049996,2cyclictest3446062-21/usr/sbin/munin08:45:226
32575049996,2cyclictest3446062-21/usr/sbin/munin08:45:226
32575049994,4cyclictest3281758-21cat07:20:136
32574999998,1cyclictest0-21swapper/408:38:384
32574999998,1cyclictest0-21swapper/408:31:144
32574999998,1cyclictest0-21swapper/407:31:284
32574999994,4cyclictest3474014-21smart_sda08:55:254
32574999990,8cyclictest0-21swapper/408:49:574
32574999990,8cyclictest0-21swapper/408:49:574
32575049986,2cyclictest3291478-21kworker/u16:2+events_unbound07:25:226
32574999986,1cyclictest0-21swapper/410:55:184
32574999986,1cyclictest0-21swapper/410:55:184
32574999984,3cyclictest3693007-21tr10:30:104
32574999984,3cyclictest3676790-21processes10:20:234
32574999983,4cyclictest3822291-21cut11:20:184
32574999983,4cyclictest3732933-21cut10:45:144
32574999983,4cyclictest3456515-21grep08:50:124
32574999983,4cyclictest3329947-21cat07:45:114
32574999975,1cyclictest0-21swapper/408:25:114
32574999974,2cyclictest3311030-21if_p4p107:35:134
32574999970,2cyclictest0-21swapper/407:54:574
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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