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2026-05-09 - 14:07
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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 09, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29542862590,1sleep50-21swapper/510:44:475
2477140994542,2cyclictest2931865-21/usr/sbin/munin10:38:227
247678624432,8sleep40-21swapper/407:07:324
2477136994239,2cyclictest2519410-21kworker/u16:2+flush-8:007:53:526
24766842422,32sleep70-21swapper/707:06:067
2477127994038,2cyclictest2990941-21kworker/u16:4+events_unbound11:56:454
2477136993937,2cyclictest2835177-21kworker/u16:0+events_unbound10:07:016
2477140993836,1cyclictest2966378-21ssh10:49:287
2477140993836,1cyclictest2711756-21diskmemload12:09:287
2477136993836,2cyclictest3112955-21kworker/u16:2+events_unbound12:12:256
2477127993836,2cyclictest2567424-21kworker/u16:1+events_unbound08:28:454
2477136993735,2cyclictest3015290-21kworker/u16:2+events_unbound11:10:526
2477136993735,2cyclictest2835177-21kworker/u16:0+events_unbound10:19:576
2477136993735,2cyclictest2772809-21kworker/u16:1+flush-8:010:55:246
2477136993735,2cyclictest2772809-21kworker/u16:1+events_unbound10:30:176
2477136993735,2cyclictest2519410-21kworker/u16:2+flush-8:009:41:416
2477134993736,1cyclictest14150irq/27-ahci[0000:00:1f.2]10:59:255
2477136993634,2cyclictest3112955-21kworker/u16:2+events_unbound12:16:206
2477136993634,2cyclictest3078789-21kworker/u16:1+events_unbound11:42:086
2477136993634,2cyclictest2835177-21kworker/u16:0+events_unbound10:46:286
2477136993634,2cyclictest2772809-21kworker/u16:1+flush-8:009:51:456
2477136993634,2cyclictest2772809-21kworker/u16:1+events_unbound09:58:216
2477136993634,2cyclictest2567424-21kworker/u16:1+events_unbound08:28:476
2477136993633,2cyclictest3138769-21kworker/u16:0+events_unbound12:19:006
2477127993634,2cyclictest3152087-21kworker/u16:1+events_unbound12:09:374
247672123626,7sleep60-21swapper/607:06:376
2477140993534,0cyclictest0-21swapper/709:54:137
2477140993533,1cyclictest2992499-21ssh11:02:127
2477140993532,2cyclictest2604485-21kthreadcore08:08:457
2477140993531,3cyclictest2795109-21ssh09:39:057
2477136993533,2cyclictest3138769-21kworker/u16:0+events_unbound12:32:086
2477136993533,2cyclictest3078789-21kworker/u16:1+events_unbound11:59:536
2477136993533,2cyclictest3015290-21kworker/u16:2+events_unbound11:19:246
2477136993533,2cyclictest2835177-21kworker/u16:0+events_unbound10:50:056
2477136993533,2cyclictest2772809-21kworker/u16:1+flush-8:009:37:256
2477136993533,2cyclictest2772809-21kworker/u16:1+events_unbound10:40:526
2477136993533,2cyclictest2519410-21kworker/u16:2+events_unbound09:27:256
2477127993532,2cyclictest2835177-21kworker/u16:0+events_unbound10:18:254
2477136993432,2cyclictest2772809-21kworker/u16:1+events_unbound10:35:456
2477127993432,2cyclictest2809183-21kworker/u16:3+events_unbound10:18:004
2477127993432,2cyclictest2772809-21kworker/u16:1+flush-8:011:06:204
2477127993432,2cyclictest2772809-21kworker/u16:1+flush-8:011:06:204
2477127993432,2cyclictest2519410-21kworker/u16:2+flush-8:009:39:484
2477140993332,0cyclictest0-21swapper/711:20:327
2477140993332,0cyclictest0-21swapper/710:42:297
2477140993332,0cyclictest0-21swapper/710:00:487
2477140993331,1cyclictest2979059-21ssh10:55:127
2477140993331,1cyclictest2857000-21ssh10:05:297
2477140993330,1cyclictest3077869-21sh11:36:417
2477136993331,2cyclictest3152087-21kworker/u16:1+events_unbound12:36:556
2477136993331,2cyclictest3042627-21kworker/u16:0+events_unbound11:44:056
2477136993331,2cyclictest3042627-21kworker/u16:0+events_unbound11:44:056
2477136993331,2cyclictest2835177-21kworker/u16:0+events_unbound10:26:126
2477136993331,2cyclictest2835177-21kworker/u16:0+events_unbound10:26:126
2477136993331,2cyclictest2835177-21kworker/u16:0+events_unbound10:11:526
2477136993331,2cyclictest2701847-21kworker/u16:0+events_unbound09:16:186
2477136993331,2cyclictest2519410-21kworker/u16:2+flush-8:009:09:056
2477127993330,2cyclictest3138769-21kworker/u16:0+events_unbound12:33:284
2477127993330,2cyclictest2835177-21kworker/u16:0+flush-8:010:57:484
247677823322,8sleep50-21swapper/507:07:255
2477140993231,0cyclictest0-21swapper/711:14:137
2477140993231,0cyclictest0-21swapper/710:31:137
2477140993231,0cyclictest0-21swapper/709:46:327
2477140993231,0cyclictest0-21swapper/709:46:327
2477140993230,1cyclictest3017215-21ssh11:12:377
2477136993230,2cyclictest2990941-21kworker/u16:4+events_unbound11:51:176
2477136993230,2cyclictest2990941-21kworker/u16:4+events_unbound11:35:476
2477136993230,2cyclictest2990941-21kworker/u16:4+events_unbound11:29:166
2477136993230,2cyclictest2944103-21kworker/u16:3+flush-8:011:03:156
2477136993230,2cyclictest2835177-21kworker/u16:0+events_unbound11:07:286
2477136993230,2cyclictest2835177-21kworker/u16:0+events_unbound11:07:286
2477136993230,2cyclictest2701847-21kworker/u16:0+events_unbound09:04:256
2477136993230,2cyclictest2701847-21kworker/u16:0+events_unbound09:04:256
2477136993229,2cyclictest3138769-21kworker/u16:0+events_unbound12:23:246
2477136993229,2cyclictest3138769-21kworker/u16:0+events_unbound12:23:246
2477136993229,2cyclictest2457951-21kworker/u16:3+events_unbound07:48:246
2477127993230,2cyclictest2835177-21kworker/u16:0+events_unbound10:12:374
2477127993230,2cyclictest2835177-21kworker/u16:0+events_unbound10:05:374
2477127993230,2cyclictest2809183-21kworker/u16:3+events_unbound10:30:324
2477127993230,2cyclictest2736290-21kworker/u16:4+events_unbound09:32:324
2477127993230,2cyclictest2457951-21kworker/u16:3+events_unbound07:18:024
2477140993130,0cyclictest0-21swapper/711:31:137
2477140993130,0cyclictest0-21swapper/709:11:377
2477140993128,2cyclictest3126935-21ssh11:57:057
2477140993127,2cyclictest3054203-21sh11:27:567
2477136993130,1cyclictest2567424-21kworker/u16:1+events_unbound08:43:466
2477136993129,2cyclictest3112955-21kworker/u16:2+flush-8:012:07:006
2477136993129,2cyclictest2990941-21kworker/u16:4+events_unbound11:14:446
2477136993129,2cyclictest2519410-21kworker/u16:2+events_unbound09:30:386
2477127993129,2cyclictest2990941-21kworker/u16:4+flush-8:011:52:044
2477127993129,2cyclictest2929594-21kworker/u16:2+flush-8:010:40:134
2477127993129,2cyclictest2772809-21kworker/u16:1+flush-8:009:34:414
2477127993129,2cyclictest2772809-21kworker/u16:1+events_unbound10:52:334
2477127993129,2cyclictest2772809-21kworker/u16:1+events_unbound10:44:174
2477140993029,0cyclictest0-21swapper/710:45:337
2477140993028,1cyclictest3004669-21ssh11:07:017
2477140993028,1cyclictest3004669-21ssh11:07:017
2477140993027,2cyclictest3114097-21ssh11:51:017
2477140993027,2cyclictest2820963-21ssh09:51:337
2477136993028,2cyclictest3042627-21kworker/u16:0+events_unbound11:25:566
2477136993028,2cyclictest2990941-21kworker/u16:4+flush-8:011:56:486
2477136993028,2cyclictest2701847-21kworker/u16:0+events_unbound09:45:046
2477136993028,2cyclictest2701847-21kworker/u16:0+events_unbound09:45:046
2477127993028,2cyclictest3138769-21kworker/u16:0+events_unbound12:28:014
2477127993028,2cyclictest3138769-21kworker/u16:0+events_unbound12:28:014
2477127993028,2cyclictest2835177-21kworker/u16:0+flush-8:010:36:284
2477127993028,2cyclictest2701847-21kworker/u16:0+flush-8:009:18:324
2477127993028,2cyclictest2519410-21kworker/u16:2+events_unbound09:09:284
2477140992928,0cyclictest0-21swapper/712:30:287
2477140992928,0cyclictest0-21swapper/712:20:287
2477140992928,0cyclictest0-21swapper/711:44:287
2477140992928,0cyclictest0-21swapper/711:44:287
2477140992928,0cyclictest0-21swapper/709:21:417
2477140992927,1cyclictest3152034-21ssh12:08:217
2477140992927,1cyclictest2880978-21ssh10:14:427
2477136992927,2cyclictest2519410-21kworker/u16:2+events_unbound08:07:136
2477136992927,2cyclictest2457951-21kworker/u16:3+events_unbound07:18:246
2477127992927,2cyclictest3112955-21kworker/u16:2+flush-8:012:15:474
2477127992927,2cyclictest3078789-21kworker/u16:1+flush-8:011:47:484
2477127992927,2cyclictest3078789-21kworker/u16:1+flush-8:011:47:484
2477127992927,2cyclictest3015290-21kworker/u16:2+events_unbound11:27:284
2477127992927,2cyclictest2990941-21kworker/u16:4+events_unbound11:33:574
2477127992927,2cyclictest2990941-21kworker/u16:4+events_unbound11:14:254
2477140992827,0cyclictest0-21swapper/709:13:567
2477136992826,2cyclictest2567424-21kworker/u16:1+events_unbound08:20:216
2477136992826,2cyclictest2457951-21kworker/u16:3+events_unbound08:02:146
2477127992826,2cyclictest2990941-21kworker/u16:4+flush-8:011:29:534
2477127992826,2cyclictest2835177-21kworker/u16:0+events_unbound10:00:214
2477127992826,2cyclictest2772809-21kworker/u16:1+flush-8:009:56:324
2477127992826,2cyclictest2457951-21kworker/u16:3+flush-8:007:08:364
2477140992726,0cyclictest0-21swapper/710:22:577
2477140992726,0cyclictest0-21swapper/709:29:127
2477140992726,0cyclictest0-21swapper/709:23:257
2477140992725,1cyclictest2711756-21diskmemload11:42:557
2477140992725,1cyclictest0-21swapper/712:26:167
2477140992725,1cyclictest0-21swapper/712:26:167
2477127992725,2cyclictest3138769-21kworker/u16:0+flush-8:012:30:484
2477127992725,2cyclictest3138769-21kworker/u16:0+events_unbound12:20:324
2477127992725,2cyclictest3017664-21kworker/u16:3+events_unbound11:20:284
2477140992625,0cyclictest0-21swapper/712:35:257
2477140992625,0cyclictest0-21swapper/712:14:237
2477140992625,0cyclictest0-21swapper/712:00:367
2477136992624,2cyclictest2519410-21kworker/u16:2+events_unbound07:46:426
2477127992625,1cyclictest2567424-21kworker/u16:1+events_unbound08:43:444
2477127992624,2cyclictest3112955-21kworker/u16:2+events_unbound12:05:254
2477127992624,2cyclictest2990941-21kworker/u16:4+events_unbound11:42:254
2477127992624,2cyclictest2835177-21kworker/u16:0+flush-8:011:01:334
2477127992624,2cyclictest2835177-21kworker/u16:0+events_unbound11:09:284
2477127992624,2cyclictest2701847-21kworker/u16:0+events_unbound09:48:294
2477127992624,2cyclictest2457951-21kworker/u16:3+flush-8:007:43:174
2477140992524,0cyclictest0-21swapper/707:58:067
2477136992523,2cyclictest2519410-21kworker/u16:2+events_unbound07:42:056
2477136992523,2cyclictest2457951-21kworker/u16:3+events_unbound08:35:326
2477136992523,2cyclictest2457951-21kworker/u16:3+events_unbound08:08:496
2477127992523,2cyclictest3112955-21kworker/u16:2+events_unbound11:59:574
2477140992422,1cyclictest2784875-21ssh09:37:387
2477140992422,1cyclictest2653950-21awk08:38:227
2477140992422,1cyclictest0-21swapper/710:25:007
2477140992422,1cyclictest0-21swapper/710:25:007
2477140992417,5cyclictest2634669-21latency_hist08:28:227
2477136992422,2cyclictest2835177-21kworker/u16:0+events_unbound10:15:066
2477136992422,2cyclictest2736290-21kworker/u16:4+events_unbound09:22:266
2477136992422,2cyclictest2457951-21kworker/u16:3+events_unbound07:16:096
2477136992422,2cyclictest2457951-21kworker/u16:3+events_unbound07:08:536
2477127992422,2cyclictest2701847-21kworker/u16:0+events_unbound09:08:164
2477127992422,2cyclictest2701847-21kworker/u16:0+events_unbound09:08:164
2477140992322,0cyclictest0-21swapper/710:10:527
2477136992321,2cyclictest2809183-21kworker/u16:3+events_unbound10:00:446
2477127992321,2cyclictest2701847-21kworker/u16:0+events_unbound09:44:374
2477127992321,2cyclictest2701847-21kworker/u16:0+events_unbound09:44:374
2477127992321,2cyclictest2701847-21kworker/u16:0+events_unbound09:16:324
2477136992220,2cyclictest2567424-21kworker/u16:1+events_unbound08:18:166
2477136992220,2cyclictest2457951-21kworker/u16:3+events_unbound07:35:326
2477136992220,2cyclictest2457951-21kworker/u16:3+events_unbound07:35:326
2477127992220,2cyclictest2736290-21kworker/u16:4+flush-8:009:24:374
2477127992219,2cyclictest2567424-21kworker/u16:1+events_unbound08:23:444
2477127992219,2cyclictest2519410-21kworker/u16:2+events_unbound07:58:244
2477140992120,0cyclictest0-21swapper/708:58:417
2477136992119,2cyclictest2567424-21kworker/u16:1+events_unbound08:41:296
2477136992119,2cyclictest2519410-21kworker/u16:2+events_unbound08:28:206
2477136992119,2cyclictest2457951-21kworker/u16:3+events_unbound07:30:136
2477127992119,2cyclictest2772809-21kworker/u16:1+events_unbound10:26:014
2477127992119,2cyclictest2772809-21kworker/u16:1+events_unbound10:26:014
2477127992119,2cyclictest2519410-21kworker/u16:2+events_unbound08:38:354
2477140992019,0cyclictest0-21swapper/707:38:537
247713499200,5cyclictest0-21swapper/511:43:365
247713499200,5cyclictest0-21swapper/511:43:365
2477127992018,2cyclictest2519410-21kworker/u16:2+flush-8:008:03:424
2477136991917,2cyclictest2654087-21kworker/u16:4+flush-8:008:59:016
2477127991917,2cyclictest2654087-21kworker/u16:4+events_unbound08:59:244
2477140991817,0cyclictest0-21swapper/707:20:217
2477136991816,2cyclictest2519410-21kworker/u16:2+events_unbound08:48:496
2477136991816,2cyclictest2486640-21kworker/u16:1+flush-8:007:23:476
2477136991815,2cyclictest2519410-21kworker/u16:2+events_unbound08:53:326
2477127991816,2cyclictest2654087-21kworker/u16:4+flush-8:008:48:474
2477140991716,0cyclictest0-21swapper/707:33:377
2477140991716,0cyclictest0-21swapper/707:33:377
247713499170,1cyclictest0-21swapper/508:58:395
2477140991613,2cyclictest1234-21snmpd07:08:317
247714099160,14cyclictest0-21swapper/709:03:477
247714099160,14cyclictest0-21swapper/709:03:477
247713499169,6cyclictest2491580-21cat07:13:375
2477134991612,3cyclictest0-21swapper/507:33:425
2477134991612,3cyclictest0-21swapper/507:33:425
247713499160,1cyclictest0-21swapper/509:59:555
247713499160,16cyclictest0-21swapper/512:33:065
247713499160,0cyclictest0-21swapper/510:55:025
2477127991614,2cyclictest2519410-21kworker/u16:2+events_unbound07:53:134
2477127991614,2cyclictest2486640-21kworker/u16:1+flush-8:007:28:324
2477127991614,2cyclictest2457951-21kworker/u16:3+events_unbound08:08:474
247714099159,5cyclictest2644282-21latency_hist08:33:227
247714099157,7cyclictest6101-21gmain08:18:407
2477140991514,0cyclictest0-21swapper/707:16:097
2477140991513,1cyclictest0-21swapper/707:28:407
247714099150,13cyclictest0-21swapper/707:58:477
2477134991512,3cyclictest0-21swapper/509:39:415
247713499150,1cyclictest0-21swapper/510:24:375
247713499150,1cyclictest0-21swapper/510:24:375
247713499150,14cyclictest3136667-21ntp_offset11:58:465
2477140991413,0cyclictest0-21swapper/707:28:067
2477140991412,1cyclictest0-21swapper/708:03:417
247714099140,13cyclictest0-21swapper/707:48:457
2477134991413,1cyclictest0-21swapper/511:55:165
2477134991413,1cyclictest0-21swapper/511:11:265
2477134991413,1cyclictest0-21swapper/509:15:435
2477134991412,2cyclictest0-21swapper/507:32:085
247713499140,1cyclictest0-21swapper/512:14:205
247713499140,13cyclictest3019326-21irqcore11:13:385
247713499140,13cyclictest2939871-21cut10:38:415
247713499140,13cyclictest2873140-21grep10:13:385
247713499140,13cyclictest2557345-21unixbench_multi07:43:505
247713499140,12cyclictest2883780-21grep10:18:335
247713499140,12cyclictest0-21swapper/512:18:305
2477127991412,2cyclictest2486640-21kworker/u16:1+flush-8:007:21:324
2477127991412,1cyclictest2554813-21kthreadcore07:43:424
29259322130,0sleep50-21swapper/510:33:415
247714099139,3cyclictest1234-21snmpd08:49:157
2477140991310,2cyclictest1234-21snmpd08:55:097
247713499133,9cyclictest2574262-21kthreadcore07:53:435
247713499133,3cyclictest681rcuog/411:03:465
247713499133,3cyclictest681rcuog/411:03:465
2477134991312,1cyclictest0-21swapper/510:08:515
2477134991312,1cyclictest0-21swapper/509:54:305
2477134991312,1cyclictest0-21swapper/509:04:315
2477134991312,1cyclictest0-21swapper/509:04:315
247713499130,9cyclictest25625071kthreadcore07:48:415
247713499130,13cyclictest0-21swapper/508:30:205
247713499130,12cyclictest3190509-21cut12:23:385
247713499130,12cyclictest3190509-21cut12:23:385
247713499130,12cyclictest3144739-21kthreadcore12:03:415
247713499130,12cyclictest3075636-21cat11:33:455
247713499130,12cyclictest2911438-21tr10:28:395
247713499130,12cyclictest2817287-21kthreadcore09:48:415
247713499130,12cyclictest2784892-21chrt09:37:395
247713499130,11cyclictest2674815-21cut08:48:385
2477127991311,2cyclictest2567424-21kworker/u16:1+flush-8:008:13:514
247714099129,2cyclictest1234-21snmpd08:43:487
247714099126,5cyclictest6101-21gmain08:38:447
247713499129,2cyclictest0-21swapper/507:58:375
247713499125,6cyclictest3217571-21kthreadcore12:33:405
247713499125,6cyclictest2957800-21irqcore10:48:375
247713499120,9cyclictest0-21swapper/507:11:565
247713499120,8cyclictest31571791kthreadcore12:08:405
247713499120,1cyclictest0-21swapper/511:18:395
247713499120,1cyclictest0-21swapper/508:47:485
247713499120,1cyclictest0-21swapper/508:38:425
247713499120,11cyclictest3061927-21grep11:28:425
247713499120,11cyclictest2751278-21kthreadcore09:23:405
247713499120,11cyclictest2740052-21cat09:18:415
247713499120,11cyclictest2684505-21cut08:53:385
247713499120,11cyclictest2587386-21cat08:03:365
247712799129,2cyclictest2457951-21kworker/u16:3+events_unbound07:33:334
247712799129,2cyclictest2457951-21kworker/u16:3+events_unbound07:33:334
2477127991210,2cyclictest2457951-21kworker/u16:3+flush-8:007:27:334
247714099117,3cyclictest1234-21snmpd07:43:257
247713499116,4cyclictest0-21swapper/511:48:435
247713499113,7cyclictest2801262-21cut09:43:395
247713499113,7cyclictest2801262-21cut09:43:395
247713499110,1cyclictest0-21swapper/510:03:395
247713499110,10cyclictest3085762-21kthreadcore11:38:415
247713499110,10cyclictest3043840-21irqcore11:23:385
247713499110,10cyclictest2609617-21cat08:13:415
247713499110,10cyclictest0-21swapper/508:33:405
247713499110,0cyclictest0-21swapper/509:08:355
247712799119,2cyclictest2654087-21kworker/u16:4+flush-8:008:53:334
247714099107,2cyclictest0-21swapper/708:13:467
247713499103,6cyclictest2615886-21cpu08:18:345
247713499102,7cyclictest2504859-21cut07:18:405
247713499100,9cyclictest2596918-21tr08:08:345
247713499100,9cyclictest2510121-21cpuspeed_turbos07:23:345
247713499100,8cyclictest2761424-21cat09:28:345
247713499100,1cyclictest0-21swapper/508:23:415
247713499100,1cyclictest0-21swapper/507:38:405
24771279986,2cyclictest2457951-21kworker/u16:3+flush-8:008:18:514
24771279985,2cyclictest2519410-21kworker/u16:2+events_unbound07:53:364
24771279973,3cyclictest2646413-21tr08:33:414
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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