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2026-03-15 - 06:57
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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 Sun Mar 15, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1700622980,0sleep40-21swapper/423:09:134
41127122950,1sleep74112713-21cut21:24:097
382626125848,7sleep40-21swapper/419:01:124
3826746995451,2cyclictest152685-21kworker/u16:1+events_unbound23:44:035
3826746994947,2cyclictest80992-21kworker/u16:3+events_unbound22:34:115
3826746994947,2cyclictest80992-21kworker/u16:3+events_unbound22:34:115
3826746994947,2cyclictest4177561-21kworker/u16:1+events_unbound22:09:185
3826746994947,2cyclictest4095365-21kworker/u16:0+flush-8:021:33:485
3826748994845,2cyclictest3916363-21kworker/u16:3+flush-8:020:48:496
382618224838,7sleep60-21swapper/619:00:106
3826746994744,2cyclictest3856201-21kworker/u16:1+events_unbound20:34:025
3826746994744,2cyclictest3856201-21kworker/u16:1+events_unbound20:34:025
3826746994543,2cyclictest311456-21kworker/u16:2+flush-8:000:29:225
3826746994442,2cyclictest81100-21kworker/u16:5+flush-8:023:29:185
3826746994442,2cyclictest126837-21kworker/u16:2+events_unbound23:19:025
3826751994338,4cyclictest4071424-21latency_hist21:08:487
3826751994337,5cyclictest3964109-21latency_hist20:13:497
382675199430,41cyclictest650-21systemd-journal21:48:487
3826748994239,2cyclictest3856201-21kworker/u16:1+flush-8:021:14:026
3826746994240,2cyclictest81100-21kworker/u16:5+events_unbound23:14:155
3826746994240,2cyclictest4060016-21kworker/u16:4+events_unbound21:16:205
3826746994240,2cyclictest152685-21kworker/u16:1+events_unbound23:59:105
3826746994240,1cyclictest4177561-21kworker/u16:1+events_unbound22:24:035
3826746994139,2cyclictest81100-21kworker/u16:5+events_unbound23:24:155
382620124130,8sleep50-21swapper/519:00:255
3826748994036,3cyclictest279877-21kworker/u16:4+flush-8:023:54:176
3826746994038,2cyclictest126837-21kworker/u16:2+flush-8:022:59:185
3826746993937,2cyclictest4095365-21kworker/u16:0+events_unbound22:00:115
38173502393,31sleep70-21swapper/718:58:587
3826746993837,1cyclictest3856201-21kworker/u16:1+events_unbound21:36:555
3826746993836,2cyclictest4177561-21kworker/u16:1+flush-8:022:29:045
3826746993836,2cyclictest152685-21kworker/u16:1+events_unbound23:40:465
3826748993734,2cyclictest3807493-21kworker/u16:0+flush-8:019:49:146
3826746993735,2cyclictest81100-21kworker/u16:5+flush-8:023:34:235
3826746993735,2cyclictest4095365-21kworker/u16:0+events_unbound21:46:035
3826746993735,2cyclictest271634-21kworker/u16:0+events_unbound23:57:345
3826746993735,2cyclictest247459-21kworker/u16:3+events_unbound00:19:235
3826746993735,2cyclictest126837-21kworker/u16:2+events_unbound22:51:195
3826748993634,2cyclictest4080239-21kworker/u16:5+flush-8:021:33:446
3826746993634,2cyclictest271634-21kworker/u16:0+events_unbound00:13:105
3826746993634,2cyclictest247459-21kworker/u16:3+events_unbound00:26:475
3826746993533,2cyclictest81100-21kworker/u16:5+events_unbound22:39:105
3826746993533,2cyclictest4177561-21kworker/u16:1+events_unbound22:45:395
3826746993533,2cyclictest4177561-21kworker/u16:1+events_unbound22:15:595
3826746993533,2cyclictest4095365-21kworker/u16:0+events_unbound21:27:115
3826746993533,2cyclictest271634-21kworker/u16:0+events_unbound00:18:465
3826746993433,1cyclictest4140532-21kworker/u16:2+events_unbound21:43:075
3826746993432,2cyclictest4095365-21kworker/u16:0+events_unbound21:52:595
3826746993432,2cyclictest4080239-21kworker/u16:5+events_unbound21:10:485
3826746993432,2cyclictest4080239-21kworker/u16:5+events_unbound21:10:485
3826746993432,2cyclictest126837-21kworker/u16:2+events_unbound23:04:215
3826748993330,2cyclictest3789588-21kworker/u16:2+flush-8:019:14:046
3826746993331,2cyclictest9398-21kworker/u16:4+events_unbound22:08:475
3826746993331,2cyclictest3856201-21kworker/u16:1+flush-8:019:19:045
3826748993229,2cyclictest311456-21kworker/u16:2+flush-8:000:18:436
3826746993230,2cyclictest4095365-21kworker/u16:0+flush-8:021:54:545
3826746993230,2cyclictest4095365-21kworker/u16:0+flush-8:021:54:545
3826746993230,2cyclictest3916363-21kworker/u16:3+events_unbound20:14:135
3826751993126,4cyclictest4130970-21latency_hist21:33:497
3826746993130,1cyclictest126837-21kworker/u16:2+events_unbound23:11:485
3826746993129,2cyclictest3856201-21kworker/u16:1+flush-8:020:59:075
3826746993129,2cyclictest271634-21kworker/u16:0+events_unbound00:04:585
382675199300,29cyclictest4095364-21sed21:18:487
3826748993028,2cyclictest3836300-21kworker/u16:3+flush-8:019:13:496
3826751992927,1cyclictest93758-21if_err_p4p122:39:037
3826748992925,3cyclictest4095365-21kworker/u16:0+flush-8:021:44:166
3826746992927,2cyclictest126837-21kworker/u16:2+events_unbound22:58:155
3826746992926,2cyclictest3916363-21kworker/u16:3+events_unbound19:59:035
3826746992826,2cyclictest9398-21kworker/u16:4+events_unbound22:22:105
3826746992826,2cyclictest4080239-21kworker/u16:5+events_unbound21:22:475
3826746992826,2cyclictest126837-21kworker/u16:2+events_unbound23:50:265
2372912280,1chrt237294-21kernelversion23:39:067
3826751992722,4cyclictest650-21systemd-journal23:28:487
3826746992725,2cyclictest3856201-21kworker/u16:1+events_unbound21:04:585
3826746992724,2cyclictest3916363-21kworker/u16:3+events_unbound20:44:025
3826751992623,2cyclictest306971-21munin-run00:08:487
3826748992624,2cyclictest4140532-21kworker/u16:2+flush-8:021:50:266
3826748992624,2cyclictest271634-21kworker/u16:0+flush-8:000:09:176
3826748992623,2cyclictest4031310-21kworker/u16:0+flush-8:020:49:106
3826746992624,2cyclictest3916363-21kworker/u16:3+flush-8:020:43:195
3826746992624,2cyclictest3807493-21kworker/u16:0+events_unbound19:29:205
3826746992624,2cyclictest3789588-21kworker/u16:2+events_unbound19:34:195
2887412260,1chrt288744-21cut23:59:107
3826748992523,2cyclictest3856201-21kworker/u16:1+flush-8:021:39:046
3826746992523,2cyclictest3789588-21kworker/u16:2+events_unbound19:14:185
3826746992522,2cyclictest3916363-21kworker/u16:3+events_unbound20:04:025
382675199240,23cyclictest354566-21latency_hist00:28:487
382675199240,22cyclictest3841383-21cut19:09:077
3826748992422,2cyclictest3789588-21kworker/u16:2+flush-8:019:19:176
3826746992421,2cyclictest3916363-21kworker/u16:3+events_unbound19:54:025
3826751992319,3cyclictest124-21kswapd022:13:487
3826748992321,2cyclictest3856201-21kworker/u16:1+flush-8:020:33:486
3826746992321,2cyclictest3856201-21kworker/u16:1+flush-8:019:39:165
1063232230,1chrt0-21swapper/622:44:076
3826748992219,2cyclictest126837-21kworker/u16:2+flush-8:023:23:536
3826748992119,2cyclictest4154807-21kworker/u16:3+flush-8:022:04:166
3826748992119,2cyclictest4031310-21kworker/u16:0+flush-8:021:04:156
3826746992119,2cyclictest3916363-21kworker/u16:3+flush-8:020:29:075
3826751992012,7cyclictest0-21swapper/700:13:487
382675199200,19cyclictest4081176-21ssh21:09:317
382675199200,19cyclictest4081176-21ssh21:09:317
3826748991917,2cyclictest126837-21kworker/u16:2+events_unbound23:44:076
3826746991917,2cyclictest3916363-21kworker/u16:3+events_unbound20:08:515
3826746991916,2cyclictest3935391-21kworker/u16:2+flush-8:020:18:595
3826741991917,2cyclictest4095365-21kworker/u16:0+flush-8:021:24:154
3826751991811,6cyclictest0-21swapper/700:09:137
3826748991815,2cyclictest81100-21kworker/u16:5+flush-8:022:53:546
3826748991815,2cyclictest4177561-21kworker/u16:1+flush-8:022:08:546
3826751991716,0cyclictest0-21swapper/719:59:197
3826751991712,4cyclictest34170-21cat22:14:037
3826751991711,5cyclictest3954530-21latency_hist20:08:497
3826746991715,2cyclictest4031310-21kworker/u16:0+flush-8:020:49:095
3826746991715,2cyclictest3935391-21kworker/u16:2+events_unbound20:58:005
3826746991715,2cyclictest3856201-21kworker/u16:1+flush-8:019:48:485
3826746991714,2cyclictest3935391-21kworker/u16:2+events_unbound20:23:585
3826748991614,2cyclictest4154807-21kworker/u16:3+events_unbound22:14:116
3826748991614,2cyclictest311456-21kworker/u16:2+events_unbound00:19:106
3826748991614,2cyclictest2306026-21kworker/u16:1+flush-8:019:04:196
3826741991614,2cyclictest4177561-21kworker/u16:1+flush-8:022:34:084
3826741991614,2cyclictest4177561-21kworker/u16:1+flush-8:022:34:084
3826751991511,3cyclictest4142832-21latency_hist21:38:497
3826748991513,2cyclictest4095365-21kworker/u16:0+events_unbound21:24:076
382674199150,1cyclictest0-21swapper/422:44:434
382674199150,15cyclictest0-21swapper/423:27:364
382675199149,4cyclictest650-21systemd-journal23:03:487
382675199149,4cyclictest3888821-21cat19:34:037
382675199147,6cyclictest0-21swapper/723:49:057
382675199147,6cyclictest0-21swapper/700:23:437
382675199145,8cyclictest0-21swapper/722:32:137
382675199144,9cyclictest53754-21ntpq22:19:147
3826751991413,0cyclictest0-21swapper/719:39:177
3826751991410,3cyclictest96-21ksoftirqd/723:44:167
3826751991410,3cyclictest3982416-21smart_sda20:19:177
3826751991410,3cyclictest184930-21ntpq23:14:137
3826748991413,1cyclictest0-21swapper/623:23:286
3826748991412,2cyclictest126837-21kworker/u16:2+flush-8:022:59:086
382674899140,14cyclictest0-21swapper/600:29:416
382674899140,14cyclictest0-21swapper/600:25:256
382674899140,13cyclictest0-21swapper/600:03:496
3826746991412,2cyclictest3807493-21kworker/u16:0+events_unbound19:24:025
3826741991413,1cyclictest0-21swapper/423:42:064
3826741991413,1cyclictest0-21swapper/423:06:474
3826741991413,1cyclictest0-21swapper/421:56:004
3826741991413,1cyclictest0-21swapper/421:56:004
3826741991412,2cyclictest4177561-21kworker/u16:1+flush-8:022:09:124
382674199140,1cyclictest0-21swapper/423:02:414
382674199140,1cyclictest0-21swapper/420:28:494
382674199140,14cyclictest0-21swapper/423:44:094
382674199140,14cyclictest0-21swapper/421:19:164
382674199140,14cyclictest0-21swapper/400:01:204
382674199140,13cyclictest0-21swapper/421:28:534
382675199139,3cyclictest4187527-21ntpq21:54:157
382675199139,3cyclictest4187527-21ntpq21:54:157
382675199139,3cyclictest173136-21ntpq23:09:207
382675199139,3cyclictest1267-21snmpd19:46:487
382675199139,3cyclictest1267-21snmpd19:25:427
382675199138,4cyclictest4058626-21ntpq20:59:147
382675199136,6cyclictest0-21swapper/723:53:527
382675199136,6cyclictest0-21swapper/723:33:517
382675199136,6cyclictest0-21swapper/723:22:187
382675199136,6cyclictest0-21swapper/722:53:497
382675199136,6cyclictest0-21swapper/722:44:347
382675199136,6cyclictest0-21swapper/722:34:267
382675199136,6cyclictest0-21swapper/722:34:267
382675199136,6cyclictest0-21swapper/722:24:347
382675199136,6cyclictest0-21swapper/721:49:547
382675199136,6cyclictest0-21swapper/721:38:597
382675199136,6cyclictest0-21swapper/700:30:017
382675199135,7cyclictest0-21swapper/722:05:087
382675199135,7cyclictest0-21swapper/722:02:027
382675199133,9cyclictest157010-21ps23:04:107
3826751991310,2cyclictest3991758-21ntpq20:24:137
3826751991310,2cyclictest3886731-21ntpq19:29:147
3826751991310,2cyclictest0-21swapper/723:24:137
3826751991310,2cyclictest0-21swapper/720:44:147
382675199130,4cyclictest4017640-21kthreadcore20:39:087
382675199130,3cyclictest4100034-21kthreadcore21:19:097
382675199130,12cyclictest3965543-21sed20:14:037
3826748991312,1cyclictest0-21swapper/623:33:526
3826748991312,1cyclictest0-21swapper/622:42:286
3826748991312,1cyclictest0-21swapper/622:38:326
3826748991312,1cyclictest0-21swapper/622:38:326
3826748991312,1cyclictest0-21swapper/621:59:166
3826748991312,1cyclictest0-21swapper/621:55:206
3826748991312,1cyclictest0-21swapper/621:55:206
382674899130,13cyclictest0-21swapper/623:50:356
382674899130,13cyclictest0-21swapper/621:35:476
3826746991311,2cyclictest3807493-21kworker/u16:0+events_unbound19:51:085
3826741991312,1cyclictest0-21swapper/422:40:474
3826741991312,1cyclictest0-21swapper/421:17:234
3826741991312,1cyclictest0-21swapper/421:09:494
3826741991312,1cyclictest0-21swapper/421:09:494
3826741991312,1cyclictest0-21swapper/420:39:134
3826741991310,2cyclictest247459-21kworker/u16:3+flush-8:000:03:584
382674199130,13cyclictest0-21swapper/421:36:374
382674199130,13cyclictest0-21swapper/419:38:434
382674199130,13cyclictest0-21swapper/419:24:114
382674199130,13cyclictest0-21swapper/400:31:174
382675199128,3cyclictest4040850-21/usr/sbin/munin20:54:177
382675199128,3cyclictest1267-21snmpd20:52:357
382675199127,4cyclictest3935357-21latency_hist19:58:497
382675199125,6cyclictest0-21swapper/722:48:567
382675199120,4cyclictest3856447-21grep19:14:097
382675199120,11cyclictest1267-21snmpd19:20:387
382675199120,10cyclictest3920606-21kthreadcore19:49:077
3826748991211,1cyclictest0-21swapper/623:59:246
3826748991211,1cyclictest0-21swapper/623:42:136
3826748991211,1cyclictest0-21swapper/623:31:496
3826748991211,1cyclictest0-21swapper/623:10:516
3826748991211,1cyclictest0-21swapper/620:09:046
3826748991211,1cyclictest0-21swapper/620:00:156
3826748991211,1cyclictest0-21swapper/619:55:126
3826748991211,1cyclictest0-21swapper/619:28:156
3826748991210,2cyclictest4060016-21kworker/u16:4+events_unbound21:09:086
3826748991210,2cyclictest4060016-21kworker/u16:4+events_unbound21:09:086
3826748991210,2cyclictest3916363-21kworker/u16:3+flush-8:020:19:156
3826748991210,2cyclictest3856201-21kworker/u16:1+flush-8:020:39:146
382674899120,1cyclictest0-21swapper/620:57:286
3826741991211,1cyclictest0-21swapper/423:54:434
3826741991211,1cyclictest0-21swapper/423:31:424
3826741991211,1cyclictest0-21swapper/422:52:364
3826741991211,1cyclictest0-21swapper/422:25:104
3826741991211,1cyclictest0-21swapper/422:23:174
3826741991211,1cyclictest0-21swapper/421:46:144
3826741991211,1cyclictest0-21swapper/419:21:584
3826741991211,1cyclictest0-21swapper/419:08:534
3826741991211,1cyclictest0-21swapper/400:22:474
382674199120,1cyclictest0-21swapper/420:03:364
382674199120,1cyclictest0-21swapper/419:41:034
382675199117,3cyclictest3993108-21/usr/sbin/munin20:29:027
382675199115,4cyclictest3831784-21cut19:04:087
382675199110,9cyclictest4002663-21/usr/sbin/munin20:34:027
382675199110,9cyclictest4002663-21/usr/sbin/munin20:34:027
3826748991110,1cyclictest0-21swapper/622:50:216
3826748991110,1cyclictest0-21swapper/622:18:496
3826748991110,1cyclictest0-21swapper/621:22:146
382674899110,11cyclictest0-21swapper/620:15:326
382674699110,11cyclictest0-21swapper/519:04:465
382674199115,5cyclictest5779-21gdbus00:24:174
3826741991110,1cyclictest0-21swapper/423:21:184
3826741991110,1cyclictest0-21swapper/422:31:004
3826741991110,1cyclictest0-21swapper/422:17:274
3826741991110,1cyclictest0-21swapper/421:00:214
3826741991110,1cyclictest0-21swapper/420:14:094
382674199110,11cyclictest0-21swapper/420:54:224
382674199110,11cyclictest0-21swapper/420:09:544
382674199110,0cyclictest0-21swapper/420:45:414
382674899109,1cyclictest0-21swapper/620:38:246
382674899109,1cyclictest0-21swapper/620:38:246
382674899108,2cyclictest3935391-21kworker/u16:2+flush-8:020:24:156
382674199109,1cyclictest0-21swapper/422:54:294
382674199109,1cyclictest0-21swapper/421:52:044
382674199109,1cyclictest0-21swapper/420:26:464
382674199109,1cyclictest0-21swapper/420:20:374
382674199109,1cyclictest0-21swapper/419:56:024
382674199109,1cyclictest0-21swapper/419:15:214
38267489998,1cyclictest0-21swapper/622:24:396
38267489998,1cyclictest0-21swapper/619:35:206
38267489997,2cyclictest3856201-21kworker/u16:1+flush-8:020:59:156
38267489997,2cyclictest152685-21kworker/u16:1+events_unbound23:04:236
38267489991,3cyclictest1508641-21abrt-dump-journ23:13:496
38267469997,2cyclictest3807493-21kworker/u16:0+flush-8:019:09:145
38267419998,1cyclictest0-21swapper/423:35:484
38267419998,1cyclictest0-21swapper/423:14:594
38267419998,1cyclictest0-21swapper/421:40:244
38267419998,1cyclictest0-21swapper/419:50:594
38267419998,1cyclictest0-21swapper/419:06:414
38267419998,1cyclictest0-21swapper/400:18:314
38267489987,1cyclictest0-21swapper/620:04:496
38267489987,1cyclictest0-21swapper/619:40:136
38267419987,1cyclictest0-21swapper/422:05:474
38267419987,1cyclictest0-21swapper/419:33:384
38267489975,2cyclictest3856201-21kworker/u16:1+flush-8:019:44:146
38267489971,1cyclictest0-21swapper/622:31:276
38267419976,1cyclictest0-21swapper/420:49:574
38267419976,1cyclictest0-21swapper/420:34:584
38267419976,1cyclictest0-21swapper/420:34:584
38267419965,1cyclictest0-21swapper/419:45:564
38267419965,1cyclictest0-21swapper/400:12:034
38267419963,2cyclictest0-21swapper/423:53:474
38267489950,5cyclictest0-21swapper/619:28:516
38267419950,5cyclictest0-21swapper/421:59:244
38267419950,4cyclictest4069185-21taskset21:04:274
38267419950,3cyclictest0-21swapper/420:04:094
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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