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2026-08-06 - 23:26
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Thu Aug 06, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43490321480,1sleep40-21swapper/409:49:444
8938925824,29sleep70-21swapper/707:08:107
8920425040,7sleep40-21swapper/407:05:344
8929324332,8sleep50-21swapper/507:06:485
89703993835,2cyclictest706105-21kworker/u16:2+flush-8:012:23:284
8933223626,7sleep60-21swapper/607:07:216
89703993532,2cyclictest376084-21kworker/u16:2+flush-8:009:43:284
89708993331,2cyclictest534829-21kworker/u16:4+events_unbound10:53:525
89711993025,4cyclictest249053-21latency_hist08:28:297
89711993024,5cyclictest559221-21latency_hist10:43:287
89709992926,3cyclictest751920-21kworker/u16:5+flush-8:011:59:306
89708992927,2cyclictest436978-21kworker/u16:2+flush-8:009:58:445
89711992827,0cyclictest0-21swapper/707:11:157
89703992826,2cyclictest593384-21kworker/u16:2+events_unbound11:13:234
89703992826,2cyclictest473688-21kworker/u16:0+events_unbound10:28:424
89703992826,2cyclictest249436-21kworker/u16:2+events_unbound08:43:434
7669812280,1chrt766982-21sh12:08:037
89711992725,1cyclictest362692-21ssh09:21:517
89703992725,2cyclictest571438-21kworker/u16:0+events_unbound10:48:424
89703992725,2cyclictest473688-21kworker/u16:0+events_unbound10:18:514
89703992725,2cyclictest311529-21kworker/u16:2+events_unbound09:03:434
89711992625,0cyclictest0-21swapper/712:36:587
8971199260,1cyclictest0-21swapper/711:43:507
89708992522,2cyclictest571438-21kworker/u16:0+flush-8:010:58:335
89703992523,2cyclictest571438-21kworker/u16:0+events_unbound11:13:444
89703992523,2cyclictest473688-21kworker/u16:0+events_unbound10:08:574
89711992423,0cyclictest0-21swapper/711:37:157
89711992419,4cyclictest644095-21pool-/usr/libex11:17:207
89711992419,4cyclictest200467-21latency_hist08:03:287
89708992421,3cyclictest495658-21kworker/u16:2+flush-8:010:38:295
89708992421,2cyclictest200662-21kworker/u16:1+events_unbound08:13:435
89703992422,2cyclictest825873-21kworker/u16:0+events_unbound12:33:564
89703992422,2cyclictest643539-21kworker/u16:1+events_unbound11:18:434
89703992422,2cyclictest571438-21kworker/u16:0+flush-8:011:00:434
89703992422,2cyclictest142265-21kworker/u16:3+events_unbound07:54:264
89711992322,0cyclictest0-21swapper/708:36:557
89711992321,1cyclictest521803-21ssh10:27:067
89711992317,5cyclictest412541-21ls09:43:287
89708992320,2cyclictest643539-21kworker/u16:1+flush-8:011:17:265
89708992319,4cyclictest249436-21kworker/u16:2+flush-8:008:43:285
89703992321,2cyclictest388437-21kworker/u16:3+events_unbound10:13:414
89703992320,2cyclictest422397-21kworker/u16:1+events_unbound10:33:394
4959932230,1chrt495991-21ssh10:14:397
89711992221,0cyclictest0-21swapper/709:13:087
89711992221,0cyclictest0-21swapper/707:49:557
89711992221,0cyclictest0-21swapper/707:47:367
89711992218,3cyclictest351387-21date09:18:287
89703992220,2cyclictest706105-21kworker/u16:2+flush-8:012:28:594
89703992220,2cyclictest288009-21kworker/u16:1+events_unbound09:18:564
89711992120,0cyclictest0-21swapper/710:06:547
89711992120,0cyclictest0-21swapper/710:06:547
8971199210,19cyclictest648-21systemd-journal11:27:237
89708992119,2cyclictest534829-21kworker/u16:4+flush-8:010:38:545
89703992119,2cyclictest730486-21kworker/u16:3+flush-8:012:13:484
89703992119,2cyclictest436978-21kworker/u16:2+flush-8:009:53:594
89703992119,2cyclictest422397-21kworker/u16:1+flush-8:010:05:354
89703992119,2cyclictest422397-21kworker/u16:1+flush-8:010:05:354
89703992119,2cyclictest142265-21kworker/u16:3+flush-8:007:38:564
89703992119,2cyclictest13580-21kworker/u16:0+events_unbound07:33:494
89711992019,0cyclictest0-21swapper/708:29:477
89711992019,0cyclictest0-21swapper/707:54:487
89711992019,0cyclictest0-21swapper/707:37:277
89711992018,1cyclictest0-21swapper/710:58:517
89708992015,5cyclictest288009-21kworker/u16:1+events_unbound09:18:525
89703992018,2cyclictest692417-21kworker/u16:0+events_unbound11:36:564
89703992018,2cyclictest534829-21kworker/u16:4+events_unbound10:43:524
89703992018,2cyclictest534829-21kworker/u16:4+events_unbound10:43:524
89703992018,2cyclictest376084-21kworker/u16:2+events_unbound09:36:274
89711991918,0cyclictest0-21swapper/712:13:407
89711991918,0cyclictest0-21swapper/710:32:247
8971199190,18cyclictest0-21swapper/707:38:517
8971199190,17cyclictest1302-21snmpd10:22:447
89703991917,2cyclictest706105-21kworker/u16:2+events_unbound11:46:234
89703991917,2cyclictest422397-21kworker/u16:1+flush-8:009:58:564
89703991917,2cyclictest288010-21kworker/u16:3+flush-8:009:10:594
89703991917,2cyclictest200662-21kworker/u16:1+events_unbound08:08:404
89703991916,2cyclictest180704-21kworker/u16:0+events_unbound08:58:424
89703991914,2cyclictest288010-21kworker/u16:3+events_unbound08:53:534
89711991817,0cyclictest0-21swapper/711:38:377
89711991817,0cyclictest0-21swapper/711:30:257
89711991817,0cyclictest0-21swapper/711:30:257
89711991817,0cyclictest0-21swapper/711:08:517
89708991816,2cyclictest288010-21kworker/u16:3+flush-8:008:58:445
89708991816,2cyclictest200662-21kworker/u16:1+flush-8:008:23:425
89703991816,2cyclictest644178-21kworker/u16:5+events_unbound11:28:554
89703991816,2cyclictest644178-21kworker/u16:5+events_unbound11:28:554
89703991816,2cyclictest643539-21kworker/u16:1+flush-8:011:24:044
89703991816,2cyclictest643539-21kworker/u16:1+events_unbound12:00:034
89703991816,2cyclictest376084-21kworker/u16:2+events_unbound09:43:414
89703991816,2cyclictest151902-21kworker/u16:4+flush-8:008:33:574
89703991815,2cyclictest473688-21kworker/u16:0+flush-8:010:23:314
89703991815,2cyclictest180704-21kworker/u16:0+events_unbound08:23:354
89711991716,0cyclictest0-21swapper/709:47:457
89711991716,0cyclictest0-21swapper/708:07:227
89711991715,1cyclictest569621-21ssh10:45:127
89711991715,1cyclictest569621-21ssh10:45:127
89711991715,1cyclictest0-21swapper/710:53:487
89703991715,2cyclictest571438-21kworker/u16:0+flush-8:011:06:104
89703991715,2cyclictest422397-21kworker/u16:1+events_unbound10:38:514
89703991715,2cyclictest249436-21kworker/u16:2+events_unbound08:28:524
89703991714,2cyclictest643539-21kworker/u16:1+events_unbound12:08:304
7247392170,1sleep70-21swapper/711:48:487
89711991615,0cyclictest0-21swapper/709:58:167
89711991615,0cyclictest0-21swapper/709:00:517
89711991615,0cyclictest0-21swapper/708:14:167
89711991614,1cyclictest0-21swapper/708:40:317
89711991613,2cyclictest1302-21snmpd12:01:437
8970999163,12cyclictest541197-21grep10:33:486
89703991614,2cyclictest730486-21kworker/u16:3+events_unbound11:57:584
89703991614,2cyclictest643539-21kworker/u16:1+flush-8:011:40:594
89703991614,2cyclictest361632-21kworker/u16:3+flush-8:009:27:274
89703991614,2cyclictest361632-21kworker/u16:3+flush-8:009:27:274
89703991614,2cyclictest288009-21kworker/u16:1+events_unbound09:14:204
89703991614,2cyclictest142265-21kworker/u16:3+events_unbound07:43:414
89703991614,2cyclictest13580-21kworker/u16:0+flush-8:007:23:494
89711991514,0cyclictest0-21swapper/711:19:087
89711991514,0cyclictest0-21swapper/708:54:087
89711991514,0cyclictest0-21swapper/708:46:067
89711991513,1cyclictest0-21swapper/707:28:527
89709991513,2cyclictest388437-21kworker/u16:3+events_unbound09:38:576
89708991513,1cyclictest0-21swapper/509:43:495
8970899150,1cyclictest0-21swapper/511:05:575
89703991513,2cyclictest730486-21kworker/u16:3+flush-8:012:03:494
89703991513,2cyclictest706105-21kworker/u16:2+events_unbound12:27:194
89703991513,2cyclictest13580-21kworker/u16:0+events_unbound07:18:464
89703991513,2cyclictest13580-21kworker/u16:0+events_unbound07:09:064
89703991513,2cyclictest114545-21kworker/u16:2+flush-8:007:33:244
89703991511,2cyclictest180704-21kworker/u16:0+events_unbound09:31:324
89711991413,0cyclictest0-21swapper/711:55:107
89711991413,0cyclictest0-21swapper/709:08:257
89711991413,0cyclictest0-21swapper/708:08:437
89711991412,1cyclictest460302-21ssh10:01:277
89711991412,1cyclictest0-21swapper/709:28:527
89709991413,1cyclictest0-21swapper/610:53:146
89709991413,1cyclictest0-21swapper/610:20:546
89709991413,1cyclictest0-21swapper/610:04:126
89709991413,1cyclictest0-21swapper/610:04:126
89709991413,1cyclictest0-21swapper/609:59:376
89709991413,1cyclictest0-21swapper/609:24:566
89709991413,1cyclictest0-21swapper/609:24:566
8970999140,1cyclictest0-21swapper/611:27:556
8970999140,14cyclictest0-21swapper/612:32:526
8970999140,14cyclictest0-21swapper/609:15:106
89708991413,1cyclictest0-21swapper/509:50:555
89708991413,1cyclictest0-21swapper/509:29:565
89708991413,1cyclictest0-21swapper/509:10:525
8970899140,1cyclictest0-21swapper/511:22:215
8970899140,14cyclictest0-21swapper/511:55:185
8970899140,14cyclictest0-21swapper/509:23:535
8970899140,14cyclictest0-21swapper/509:23:535
89703991412,2cyclictest70049-21kworker/u16:1+events_unbound07:13:434
89703991412,2cyclictest70049-21kworker/u16:1+events_unbound07:13:434
89703991412,2cyclictest571438-21kworker/u16:0+events_unbound10:57:554
89703991412,2cyclictest151902-21kworker/u16:4+flush-8:008:01:314
89703991412,2cyclictest151902-21kworker/u16:4+flush-8:007:48:564
8971199135,6cyclictest6233-21gvfs-afc-volume08:18:417
89711991313,0cyclictest0-21swapper/710:51:417
89711991312,0cyclictest0-21swapper/708:51:217
89711991312,0cyclictest0-21swapper/707:20:137
89711991310,2cyclictest397232-21ntpq09:33:587
8971199130,12cyclictest0-21swapper/707:13:537
8971199130,12cyclictest0-21swapper/707:13:537
8970999138,4cyclictest731759-21cat11:53:446
89709991312,1cyclictest0-21swapper/612:36:586
89709991312,1cyclictest0-21swapper/611:06:576
89709991312,1cyclictest0-21swapper/610:57:486
89709991312,1cyclictest0-21swapper/610:28:576
89709991312,1cyclictest0-21swapper/609:57:066
89709991312,1cyclictest0-21swapper/609:30:376
89709991312,1cyclictest0-21swapper/609:22:536
89709991311,2cyclictest534829-21kworker/u16:4+flush-8:010:43:566
89709991311,2cyclictest534829-21kworker/u16:4+flush-8:010:43:566
8970999130,13cyclictest0-21swapper/611:49:596
8970999130,13cyclictest0-21swapper/610:10:496
8970999130,13cyclictest0-21swapper/609:50:006
8970899139,3cyclictest571438-21kworker/u16:0+flush-8:010:48:445
8970899139,3cyclictest288010-21kworker/u16:3+flush-8:008:53:455
89708991312,1cyclictest0-21swapper/512:15:015
89708991312,1cyclictest0-21swapper/512:11:235
89708991312,1cyclictest0-21swapper/512:07:465
89708991312,1cyclictest0-21swapper/511:51:415
89708991312,1cyclictest0-21swapper/511:48:035
89708991311,2cyclictest473688-21kworker/u16:0+events_unbound10:18:425
89708991310,2cyclictest288010-21kworker/u16:3+flush-8:008:48:465
8970899130,13cyclictest0-21swapper/512:26:225
8970899130,13cyclictest0-21swapper/511:12:065
8970899130,0cyclictest0-21swapper/511:58:565
89703991311,2cyclictest706105-21kworker/u16:2+events_unbound11:48:574
89703991311,2cyclictest200662-21kworker/u16:1+flush-8:008:13:544
8971199129,2cyclictest1302-21snmpd09:48:557
8971199128,3cyclictest1302-21snmpd12:25:147
8971199128,3cyclictest1302-21snmpd12:18:317
8971199128,2cyclictest767816-21ssh12:08:407
89711991210,1cyclictest0-21swapper/712:30:097
8970999127,5cyclictest0-21swapper/611:44:476
89709991211,1cyclictest0-21swapper/612:25:096
89709991211,1cyclictest0-21swapper/612:23:066
89709991211,1cyclictest0-21swapper/611:34:326
89709991211,1cyclictest0-21swapper/611:19:436
89709991211,1cyclictest0-21swapper/611:02:226
89709991211,1cyclictest0-21swapper/610:39:026
89709991211,1cyclictest0-21swapper/609:13:076
89709991211,1cyclictest0-21swapper/608:43:476
8970999120,1cyclictest0-21swapper/608:22:496
8970899128,3cyclictest104345-21cat07:13:435
8970899128,3cyclictest104345-21cat07:13:435
8970899127,5cyclictest180704-21kworker/u16:0+flush-8:008:13:295
89708991211,1cyclictest0-21swapper/512:20:415
89708991211,1cyclictest0-21swapper/510:28:545
89708991211,1cyclictest0-21swapper/509:41:175
89708991210,2cyclictest706105-21kworker/u16:2+events_unbound12:28:555
89708991210,2cyclictest643539-21kworker/u16:1+flush-8:011:33:395
8970899120,1cyclictest0-21swapper/508:30:305
8970899120,1cyclictest0-21swapper/507:31:325
8970899120,0cyclictest0-21swapper/511:40:485
89703991210,2cyclictest180704-21kworker/u16:0+flush-8:008:18:514
8970399120,1cyclictest0-21swapper/408:04:524
8971199117,3cyclictest1302-21snmpd10:10:077
8971199110,9cyclictest1302-21snmpd09:23:427
8971199110,9cyclictest1302-21snmpd09:23:427
8970999118,2cyclictest200860-21/usr/sbin/munin08:03:516
8970999117,3cyclictest644177-21kworker/u16:3+flush-8:011:28:456
8970999117,3cyclictest644177-21kworker/u16:3+flush-8:011:28:456
8970999117,3cyclictest250237-21cat08:28:426
8970999117,3cyclictest150395-21kthreadcore07:33:476
8970999117,3cyclictest123827-21cat07:23:446
89709991110,1cyclictest0-21swapper/612:13:486
89709991110,1cyclictest0-21swapper/612:08:076
89709991110,1cyclictest0-21swapper/611:42:446
89709991110,1cyclictest0-21swapper/611:13:346
89709991110,1cyclictest0-21swapper/609:47:296
89709991110,1cyclictest0-21swapper/608:54:496
89709991110,1cyclictest0-21swapper/608:48:316
89709991110,1cyclictest0-21swapper/607:56:486
89709991110,1cyclictest0-21swapper/607:44:306
89709991110,1cyclictest0-21swapper/607:33:186
89709991110,1cyclictest0-21swapper/607:10:366
8970999110,3cyclictest177173-21cut07:48:486
8970999110,11cyclictest0-21swapper/608:11:476
8970999110,11cyclictest0-21swapper/607:42:566
8970999110,11cyclictest0-21swapper/607:19:456
8970999110,0cyclictest0-21swapper/608:02:106
8970899119,2cyclictest706105-21kworker/u16:2+events_unbound12:37:075
8970899118,2cyclictest172920-21kernelversion07:48:455
89708991110,1cyclictest0-21swapper/510:43:345
89708991110,1cyclictest0-21swapper/510:43:345
89708991110,1cyclictest0-21swapper/510:23:525
89708991110,1cyclictest0-21swapper/510:15:495
89708991110,1cyclictest0-21swapper/508:04:395
89708991110,1cyclictest0-21swapper/507:48:055
8970899110,11cyclictest0-21swapper/508:21:025
8970899110,11cyclictest0-21swapper/507:55:025
8970399110,11cyclictest0-21swapper/408:50:354
8971199107,2cyclictest610772-21ssh11:03:467
8971199106,3cyclictest6050-21gmain10:36:347
8971199106,3cyclictest1302-21snmpd07:23:467
8970999109,1cyclictest0-21swapper/609:36:176
8970999109,1cyclictest0-21swapper/608:39:036
8970999107,2cyclictest767687-21/usr/sbin/munin12:08:546
8970999106,3cyclictest621658-21cat11:08:436
8970999106,3cyclictest259925-21cat08:33:446
8970999106,3cyclictest104344-21cat07:13:436
8970999106,3cyclictest104344-21cat07:13:436
8970999104,5cyclictest0-21swapper/610:23:486
8970999100,9cyclictest494907-21ntpq10:13:516
8970999100,9cyclictest226057-21kthreadcore08:13:486
8970899109,1cyclictest0-21swapper/510:09:125
8970899109,1cyclictest0-21swapper/509:05:405
8970899109,1cyclictest0-21swapper/507:59:175
8970899109,1cyclictest0-21swapper/507:26:395
8970899106,3cyclictest462707-21cat10:03:445
8970899106,3cyclictest462707-21cat10:03:445
897099998,1cyclictest0-21swapper/608:59:336
897099990,8cyclictest320428-21kthreadcore09:03:476
897099990,8cyclictest242844-21kthreadcore08:23:456
897089998,1cyclictest0-21swapper/509:35:375
897089998,1cyclictest0-21swapper/509:14:585
897089998,1cyclictest0-21swapper/507:41:095
897089998,1cyclictest0-21swapper/507:34:135
897089998,1cyclictest0-21swapper/507:22:525
897089987,1cyclictest0-21swapper/508:43:355
897089983,4cyclictest666063-21missed_timers11:23:485
897089983,4cyclictest446143-21proc_pri09:53:555
897089983,4cyclictest262697-21grep08:33:485
897089982,5cyclictest98102-21latency07:08:495
897039986,1cyclictest0-21swapper/408:38:434
897089972,4cyclictest670620-21grep11:28:425
897089972,4cyclictest670620-21grep11:28:425
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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