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2026-05-16 - 18:16
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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 Sat May 16, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3270565994541,3cyclictest124-21kswapd011:23:077
327027024433,8sleep50-21swapper/507:07:495
3270563994341,2cyclictest3626965-21kworker/u16:1+events_unbound10:18:256
3270563994340,2cyclictest3831718-21kworker/u16:2+events_unbound12:17:556
3270563994038,2cyclictest3554165-21kworker/u16:1+flush-8:009:41:136
3270563994034,6cyclictest3495105-21kworker/u16:2+events_unbound09:15:086
3270559994038,2cyclictest3626965-21kworker/u16:1+events_unbound10:15:515
3270563993937,2cyclictest3675740-21kworker/u16:2+events_unbound10:37:366
3270563993937,2cyclictest3438004-21kworker/u16:3+events_unbound09:20:366
3270559993936,2cyclictest3809590-21kworker/u16:1+events_unbound11:12:555
3270554993936,2cyclictest3614679-21kworker/u16:4+flush-8:010:57:534
32701962394,30sleep70-21swapper/707:06:467
3270563993836,2cyclictest3831718-21kworker/u16:2+events_unbound12:30:386
3270563993836,2cyclictest3809590-21kworker/u16:1+events_unbound11:21:486
3270563993836,2cyclictest3626965-21kworker/u16:1+events_unbound10:41:156
3270563993836,2cyclictest3614679-21kworker/u16:4+events_unbound10:11:236
3270563993836,2cyclictest3495105-21kworker/u16:2+events_unbound09:25:206
3270559993836,2cyclictest3968085-21kworker/u16:0+events_unbound12:25:275
3270559993836,2cyclictest3883384-21kworker/u16:0+flush-8:011:54:355
3270559993836,2cyclictest3868466-21kworker/u16:1+events_unbound11:40:325
3270565993735,1cyclictest0-21swapper/709:04:247
3270563993735,2cyclictest3883384-21kworker/u16:0+events_unbound11:46:396
3270563993735,2cyclictest3749235-21kworker/u16:5+events_unbound10:57:446
3270563993735,2cyclictest3614679-21kworker/u16:4+flush-8:011:08:166
3270563993735,2cyclictest3587864-21kworker/u16:2+events_unbound09:46:446
3270563993735,2cyclictest3554165-21kworker/u16:1+events_unbound09:36:446
3270559993735,2cyclictest3883384-21kworker/u16:0+events_unbound11:51:275
3270559993735,2cyclictest3868466-21kworker/u16:1+events_unbound11:37:245
3270559993735,2cyclictest3844003-21kworker/u16:3+events_unbound11:28:355
3270563993634,2cyclictest3968085-21kworker/u16:0+events_unbound12:33:556
3270563993634,2cyclictest3883384-21kworker/u16:0+flush-8:011:52:476
3270563993634,2cyclictest3809590-21kworker/u16:1+events_unbound11:14:116
3270563993634,2cyclictest3675740-21kworker/u16:2+events_unbound11:04:116
3270563993633,2cyclictest3626965-21kworker/u16:1+events_unbound10:52:206
3270563993629,7cyclictest3529598-21kworker/u16:0+events_unbound09:51:096
3270559993634,2cyclictest3883384-21kworker/u16:0+events_unbound12:00:405
3270559993634,2cyclictest3831718-21kworker/u16:2+events_unbound12:09:555
3270559993634,2cyclictest3749235-21kworker/u16:5+events_unbound10:53:205
3270559993634,2cyclictest3614679-21kworker/u16:4+events_unbound09:53:525
3270559993634,2cyclictest3495105-21kworker/u16:2+events_unbound09:24:315
39680982350,1chrt0-21swapper/612:17:536
39680982350,1chrt0-21swapper/612:17:536
3270563993533,2cyclictest3844003-21kworker/u16:3+flush-8:011:35:596
3270563993533,2cyclictest3831718-21kworker/u16:2+events_unbound12:09:596
3270563993533,2cyclictest3831718-21kworker/u16:2+events_unbound11:40:086
3270563993533,2cyclictest3675740-21kworker/u16:2+events_unbound10:26:556
3270563993533,2cyclictest3529598-21kworker/u16:0+events_unbound10:32:476
3270563993533,2cyclictest3495105-21kworker/u16:2+flush-8:009:09:286
3270559993533,2cyclictest3968085-21kworker/u16:0+events_unbound12:29:235
3270559993533,2cyclictest3870859-21kworker/u16:4+events_unbound11:45:155
3270559993533,2cyclictest3529598-21kworker/u16:0+events_unbound10:26:085
3270559993533,2cyclictest3529598-21kworker/u16:0+events_unbound10:05:595
3270559993533,2cyclictest3279743-21kworker/u16:1+events_unbound07:35:365
327007823525,7sleep40-21swapper/407:05:074
3270565993433,0cyclictest0-21swapper/711:38:157
3270565993433,0cyclictest0-21swapper/709:43:317
3270563993432,2cyclictest3941388-21kworker/u16:1+events_unbound12:04:156
3270563993432,2cyclictest3830784-21kworker/u16:0+events_unbound11:32:276
3270563993432,2cyclictest3529598-21kworker/u16:0+flush-8:010:05:116
3270559993432,2cyclictest3921184-21kworker/u16:3+events_unbound12:16:435
3270559993432,2cyclictest3921184-21kworker/u16:3+events_unbound12:16:435
3270559993432,2cyclictest3614679-21kworker/u16:4+events_unbound10:52:005
3270559993432,2cyclictest3529598-21kworker/u16:0+events_unbound09:39:285
3270559993432,2cyclictest3529598-21kworker/u16:0+events_unbound09:36:405
3270559993432,2cyclictest3529598-21kworker/u16:0+events_unbound09:29:405
3270559993432,2cyclictest3529598-21kworker/u16:0+events_unbound09:29:405
3270559993432,2cyclictest3438004-21kworker/u16:3+events_unbound09:15:515
3270565993331,1cyclictest3868580-21ssh11:34:037
3270565993331,1cyclictest3783035-21ssh10:58:357
3270565993328,4cyclictest3651307-21latency_hist10:07:547
3270563993331,2cyclictest3883384-21kworker/u16:0+events_unbound11:54:076
3270559993331,2cyclictest3968085-21kworker/u16:0+events_unbound12:34:205
3270559993331,2cyclictest3844003-21kworker/u16:3+events_unbound11:26:595
3270559993331,2cyclictest3749235-21kworker/u16:5+events_unbound11:07:115
3270559993331,2cyclictest3626965-21kworker/u16:1+events_unbound10:00:115
3270559993331,2cyclictest3614679-21kworker/u16:4+events_unbound10:12:375
3270559993331,2cyclictest3529598-21kworker/u16:0+events_unbound10:42:125
3270559993331,2cyclictest3529598-21kworker/u16:0+events_unbound09:49:325
3270559993331,2cyclictest3331739-21kworker/u16:2+flush-8:007:58:195
3270559993331,2cyclictest3293117-21kworker/u16:3+events_unbound08:10:355
3270559993331,2cyclictest3293117-21kworker/u16:3+events_unbound08:10:355
3270554993331,2cyclictest3968085-21kworker/u16:0+events_unbound12:33:084
3270554993330,2cyclictest3921184-21kworker/u16:3+events_unbound12:23:084
3270563993230,2cyclictest3626965-21kworker/u16:1+events_unbound09:59:126
3270559993230,2cyclictest3749235-21kworker/u16:5+events_unbound11:09:435
3270559993230,2cyclictest3626965-21kworker/u16:1+flush-8:010:45:075
3270559993230,2cyclictest3529598-21kworker/u16:0+events_unbound10:32:335
3270563993129,2cyclictest3831718-21kworker/u16:2+flush-8:011:58:406
3270563993129,2cyclictest3614679-21kworker/u16:4+flush-8:010:13:316
3270563993129,2cyclictest3418071-21kworker/u16:0+events_unbound08:47:356
3270563993129,2cyclictest3293117-21kworker/u16:3+events_unbound08:03:276
3270559993129,2cyclictest3941388-21kworker/u16:1+events_unbound12:04:485
3270559993129,2cyclictest3749235-21kworker/u16:5+flush-8:011:01:515
3270559993129,2cyclictest3614679-21kworker/u16:4+events_unbound10:19:375
3270559993129,2cyclictest3438004-21kworker/u16:3+events_unbound09:12:165
326999723121,7sleep60-21swapper/607:03:576
3270565993029,0cyclictest0-21swapper/711:09:047
3270565993029,0cyclictest0-21swapper/708:33:117
3270563993028,2cyclictest3830784-21kworker/u16:0+events_unbound11:24:566
3270563993028,2cyclictest3529598-21kworker/u16:0+events_unbound10:44:156
3270563993028,2cyclictest3293117-21kworker/u16:3+events_unbound07:47:526
3270559993028,2cyclictest3968085-21kworker/u16:0+events_unbound12:18:585
3270559993028,2cyclictest3554165-21kworker/u16:1+events_unbound09:47:235
3270559993028,2cyclictest3418071-21kworker/u16:0+flush-8:008:23:155
3270565992928,0cyclictest0-21swapper/712:14:367
3270565992928,0cyclictest0-21swapper/712:14:367
3270565992928,0cyclictest0-21swapper/711:02:557
3270565992926,2cyclictest3894090-21ssh11:46:087
3270563992927,2cyclictest3749235-21kworker/u16:5+events_unbound10:58:026
3270563992927,2cyclictest3293117-21kworker/u16:3+events_unbound08:11:046
3270563992927,2cyclictest3293117-21kworker/u16:3+events_unbound08:11:046
3270563992927,2cyclictest3293117-21kworker/u16:3+events_unbound07:15:046
3270559992927,2cyclictest3418071-21kworker/u16:0+events_unbound08:57:405
3270559992927,2cyclictest3418071-21kworker/u16:0+events_unbound08:57:405
3270554992927,2cyclictest3438004-21kworker/u16:3+events_unbound09:08:184
3270565992827,0cyclictest0-21swapper/709:28:047
3270565992827,0cyclictest0-21swapper/709:28:047
3270565992826,1cyclictest3747209-21ssh10:44:567
3270565992824,3cyclictest3990281-21sh12:23:597
3270565992823,4cyclictest3980312-21latency_hist12:22:547
3270563992826,2cyclictest3293117-21kworker/u16:3+events_unbound07:54:376
3270559992826,2cyclictest3438004-21kworker/u16:3+events_unbound09:03:325
3270559992826,2cyclictest3427704-21kworker/u16:1+events_unbound08:29:165
3270559992826,2cyclictest3418071-21kworker/u16:0+events_unbound08:50:525
3270563992725,2cyclictest3614679-21kworker/u16:4+events_unbound09:54:136
3270563992725,2cyclictest3529598-21kworker/u16:0+flush-8:009:29:316
3270563992725,2cyclictest3529598-21kworker/u16:0+flush-8:009:29:316
3270563992725,2cyclictest3466668-21kworker/u16:4+events_unbound08:58:556
3270563992725,2cyclictest3331739-21kworker/u16:2+events_unbound07:41:376
3270563992724,2cyclictest3968085-21kworker/u16:0+events_unbound12:24:056
3270559992725,2cyclictest3293117-21kworker/u16:3+events_unbound07:29:055
3270554992723,3cyclictest3831718-21kworker/u16:2+flush-8:012:03:114
3270565992625,0cyclictest0-21swapper/709:33:077
3270565992625,0cyclictest0-21swapper/709:14:357
3270563992624,2cyclictest3418071-21kworker/u16:0+events_unbound08:42:416
3270559992624,2cyclictest3830784-21kworker/u16:0+events_unbound11:19:185
3270554992624,2cyclictest3399576-21kworker/u16:2+flush-8:008:13:194
3270554992623,2cyclictest3831718-21kworker/u16:2+flush-8:012:28:154
3270554992622,3cyclictest3675740-21kworker/u16:2+flush-8:010:38:234
3270565992524,0cyclictest0-21swapper/712:30:127
3270565992524,0cyclictest0-21swapper/710:11:197
3270565992524,0cyclictest0-21swapper/709:57:237
3270565992523,1cyclictest3734737-21sh10:39:247
3270565992521,3cyclictest3613667-21ssh09:51:007
3270559992523,2cyclictest3438004-21kworker/u16:3+events_unbound09:21:455
3270559992523,2cyclictest3418071-21kworker/u16:0+events_unbound08:38:085
3270559992523,2cyclictest3333959-21kworker/u16:4+events_unbound08:21:595
3270559992523,2cyclictest3293117-21kworker/u16:3+flush-8:007:52:355
3270554992523,1cyclictest3495105-21kworker/u16:2+events_unbound09:18:104
3270565992423,0cyclictest0-21swapper/711:18:047
3270565992423,0cyclictest0-21swapper/710:57:357
3270565992422,1cyclictest3710877-21ssh10:30:207
3270565992418,5cyclictest3428004-21latency_hist08:27:547
3270563992422,2cyclictest3495105-21kworker/u16:2+flush-8:009:03:406
3270563992422,2cyclictest2426841-21kworker/u16:5+events_unbound07:08:166
3270563992421,2cyclictest3333959-21kworker/u16:4+flush-8:008:12:596
3270559992422,2cyclictest3675740-21kworker/u16:2+flush-8:010:34:225
3270559992422,2cyclictest3293117-21kworker/u16:3+events_unbound08:07:355
3270565992322,0cyclictest0-21swapper/711:15:237
3270559992321,2cyclictest3241927-21kworker/u16:0+events_unbound07:10:335
3270565992221,0cyclictest0-21swapper/711:29:257
3270565992221,0cyclictest0-21swapper/710:24:237
3270565992221,0cyclictest0-21swapper/709:09:167
3270565992218,2cyclictest3931482-21ssh12:02:437
3270563992220,2cyclictest3418071-21kworker/u16:0+events_unbound08:27:336
3270563992220,2cyclictest3322016-21kworker/u16:0+events_unbound07:31:596
3270563992220,2cyclictest3279743-21kworker/u16:1+events_unbound07:37:376
3270559992220,2cyclictest3438004-21kworker/u16:3+flush-8:008:59:355
3270565992120,0cyclictest0-21swapper/709:40:327
3270565992120,0cyclictest0-21swapper/709:19:367
3270565992120,0cyclictest0-21swapper/707:42:577
3270565992119,1cyclictest3722631-21ssh10:34:317
3270563992119,2cyclictest3333959-21kworker/u16:4+events_unbound08:21:086
3270559992119,2cyclictest3418071-21kworker/u16:0+events_unbound08:45:595
3270559992119,2cyclictest3333959-21kworker/u16:4+events_unbound07:40:565
3270559992119,2cyclictest3293117-21kworker/u16:3+events_unbound07:19:565
3270559992119,2cyclictest3279743-21kworker/u16:1+flush-8:007:15:495
3270554992119,2cyclictest2426841-21kworker/u16:5+events_unbound07:08:104
3270565992019,0cyclictest0-21swapper/708:52:047
3270565992018,1cyclictest0-21swapper/711:54:117
3270565992014,5cyclictest3370336-21latency_hist07:57:547
3270563992018,2cyclictest3418071-21kworker/u16:0+events_unbound08:28:246
3270559992018,2cyclictest3370147-21kworker/u16:0+events_unbound07:56:195
3270559992018,2cyclictest3293117-21kworker/u16:3+events_unbound08:15:205
3270565991918,0cyclictest0-21swapper/710:17:327
3270565991917,1cyclictest0-21swapper/709:24:017
3270563991917,2cyclictest3466668-21kworker/u16:4+flush-8:008:53:396
3270563991917,2cyclictest3466668-21kworker/u16:4+flush-8:008:53:396
3270563991917,2cyclictest3418071-21kworker/u16:0+events_unbound08:50:566
3270563991917,2cyclictest3333959-21kworker/u16:4+events_unbound07:52:406
3270559991917,2cyclictest3293117-21kworker/u16:3+events_unbound07:44:175
3270565991817,0cyclictest0-21swapper/712:06:327
3270563991816,2cyclictest1839486-21kworker/u16:2+events_unbound07:24:556
3270559991815,3cyclictest3438004-21kworker/u16:3+events_unbound08:36:325
327056599179,7cyclictest6895-21gmain08:38:117
3270565991716,0cyclictest0-21swapper/711:51:037
3270565991716,0cyclictest0-21swapper/708:58:597
3270565991715,1cyclictest3505064-21diskmemload10:20:247
3270563991715,2cyclictest3293117-21kworker/u16:3+events_unbound07:59:366
3270565991615,0cyclictest0-21swapper/707:13:137
3270565991614,1cyclictest0-21swapper/707:58:087
3270565991612,3cyclictest1234-21snmpd07:25:087
3270565991610,5cyclictest3331926-21latency_hist07:37:557
3270559991614,2cyclictest3293117-21kworker/u16:3+events_unbound07:23:525
3270554991613,2cyclictest3749235-21kworker/u16:5+flush-8:011:07:544
3270554991612,3cyclictest3884217-21cat11:43:094
3270565991514,0cyclictest0-21swapper/710:52:317
3270563991513,2cyclictest1839486-21kworker/u16:2+events_unbound07:18:376
327055499150,1cyclictest0-21swapper/411:56:474
327055499150,1cyclictest0-21swapper/410:24:044
327055499150,14cyclictest0-21swapper/411:33:084
327056599144,8cyclictest5975-21gmain08:08:197
327056599144,8cyclictest5975-21gmain08:08:197
3270565991412,1cyclictest3636634-21ssh09:58:267
3270565991412,1cyclictest3408966-21latency_hist08:17:547
327056599140,12cyclictest0-21swapper/707:08:187
3270563991412,2cyclictest3438004-21kworker/u16:3+flush-8:008:35:416
3270554991413,1cyclictest0-21swapper/411:01:454
3270554991413,1cyclictest0-21swapper/409:59:384
3270554991412,2cyclictest3279743-21kworker/u16:1+events_unbound07:28:244
327055499140,14cyclictest0-21swapper/409:33:474
327056599139,3cyclictest1234-21snmpd07:48:157
327056599138,3cyclictest1234-21snmpd07:40:427
3270565991313,0cyclictest0-21swapper/712:34:547
327056599130,12cyclictest0-21swapper/708:18:177
3270554991311,2cyclictest3626965-21kworker/u16:1+flush-8:010:48:174
327055499130,1cyclictest0-21swapper/409:23:184
327056599129,2cyclictest0-21swapper/708:28:167
327056599128,3cyclictest1234-21snmpd07:31:027
327056599128,3cyclictest1234-21snmpd07:17:567
327056599127,3cyclictest6032-21gmain08:53:077
327056599127,3cyclictest6032-21gmain08:53:077
327056599125,6cyclictest5975-21gmain08:03:237
3270565991210,1cyclictest3955216-21ssh12:11:397
327055499127,4cyclictest3342722-21cat07:43:114
3270554991211,1cyclictest0-21swapper/408:20:374
3270554991210,2cyclictest3626965-21kworker/u16:1+flush-8:010:08:234
3270554991210,2cyclictest3438004-21kworker/u16:3+flush-8:008:38:184
3270554991210,1cyclictest3467043-21cpuspeed_turbos08:48:064
327055499119,2cyclictest3831718-21kworker/u16:2+flush-8:012:17:534
327055499119,2cyclictest3831718-21kworker/u16:2+flush-8:012:17:534
327055499119,2cyclictest3438004-21kworker/u16:3+events_unbound09:13:094
327055499116,4cyclictest3486882-21cat08:58:094
327055499110,11cyclictest0-21swapper/407:55:434
327055499110,11cyclictest0-21swapper/407:20:054
32705659994,4cyclictest3465216-21grep08:43:157
32705549998,1cyclictest3809590-21kworker/u16:1+events_unbound11:21:254
32705549998,1cyclictest0-21swapper/407:38:034
32705549998,1cyclictest0-21swapper/407:37:164
32705549996,2cyclictest0-21swapper/409:53:134
32705549995,3cyclictest3477293-21cat08:53:104
32705549995,3cyclictest3477293-21cat08:53:104
32705549995,3cyclictest3352349-21cat07:48:104
32705549994,4cyclictest3716549-21cut10:33:134
32705549994,4cyclictest3457760-21df_inode08:43:074
32705549986,2cyclictest3418071-21kworker/u16:0+events_unbound08:28:184
32705549986,1cyclictest0-21swapper/411:58:124
32705549986,1cyclictest0-21swapper/409:03:164
32705549986,1cyclictest0-21swapper/408:03:124
32705549985,2cyclictest0-21swapper/410:13:104
32705549984,3cyclictest3851082-21kthreadcore11:28:124
32705549984,3cyclictest3554165-21kworker/u16:1+flush-8:009:43:154
32705549984,3cyclictest3307412-21kthreadcore07:23:134
32705549983,4cyclictest3951184-21cut12:08:134
32705549983,4cyclictest3896186-21cut11:48:084
32705549983,4cyclictest3839552-21cut11:23:134
32705549983,4cyclictest3812108-21cut11:13:114
32705549983,4cyclictest3646582-21cut10:03:164
32705549983,4cyclictest3440939-21cut08:33:134
32705549983,4cyclictest3288280-21cut07:13:144
32705549980,2cyclictest0-21swapper/412:21:484
32705549975,1cyclictest0-21swapper/409:48:124
32705549975,1cyclictest0-21swapper/409:28:104
32705549975,1cyclictest0-21swapper/409:28:104
32705549975,1cyclictest0-21swapper/408:08:074
32705549975,1cyclictest0-21swapper/408:08:074
32705549974,2cyclictest3371020-21cstates07:58:074
32705549973,3cyclictest3737231-21sort10:43:064
32705549973,3cyclictest3701191-21cut10:28:084
32705549973,3cyclictest3676548-21cat10:18:064
32705549972,4cyclictest3871487-21ls11:38:064
32705549972,4cyclictest3578897-21seq09:38:064
32705549972,4cyclictest3419449-21grep08:23:094
32705549970,6cyclictest0-21swapper/411:08:054
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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