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2026-05-22 - 17:14
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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 Fri May 22, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278438426554,7sleep50-21swapper/507:04:085
278457425848,7sleep40-21swapper/407:06:484
278445924925,7sleep60-21swapper/607:05:136
2784913994543,2cyclictest3385501-21kworker/u16:0+events_unbound12:17:525
2784913994139,2cyclictest3165881-21kworker/u16:3+flush-8:011:07:545
27844242416,30sleep70-21swapper/707:04:427
2784913993836,2cyclictest3227100-21kworker/u16:0+flush-8:010:52:535
2784913993835,3cyclictest2097566-21kworker/u16:2+events_unbound09:17:535
2784908993836,2cyclictest3385501-21kworker/u16:0+events_unbound12:16:054
2784908993735,2cyclictest3361185-21kworker/u16:3+events_unbound11:28:394
2784908993735,2cyclictest3240466-21kworker/u16:1+flush-8:010:45:514
2784908993735,2cyclictest3113950-21kworker/u16:3+flush-8:009:50:234
2784908993735,2cyclictest2904192-21kworker/u16:0+events_unbound09:34:394
2784908993734,2cyclictest3385501-21kworker/u16:0+flush-8:012:32:414
2784908993734,2cyclictest3385501-21kworker/u16:0+flush-8:012:32:414
2784908993734,2cyclictest3200059-21kworker/u16:2+flush-8:010:33:174
2784922993635,0cyclictest0-21swapper/710:16:507
278492299360,34cyclictest5819-21gnome-shell11:28:397
2784913993634,2cyclictest3361185-21kworker/u16:3+flush-8:011:42:255
2784913993634,2cyclictest3009089-21kworker/u16:1+flush-8:009:32:265
2784908993634,2cyclictest3385501-21kworker/u16:0+flush-8:012:06:544
2784908993634,2cyclictest3346640-21kworker/u16:2+flush-8:011:37:024
2784908993634,2cyclictest3009089-21kworker/u16:1+flush-8:009:41:304
2784908993633,2cyclictest2904192-21kworker/u16:0+events_unbound09:54:024
2784922993533,1cyclictest3019039-21diskmemload11:40:507
2784922993533,1cyclictest0-21swapper/710:49:057
2784908993533,2cyclictest3385501-21kworker/u16:0+events_unbound11:49:344
2784908993533,2cyclictest3385501-21kworker/u16:0+events_unbound11:49:344
2784908993533,2cyclictest3346640-21kworker/u16:2+events_unbound11:19:504
2784908993533,2cyclictest3150996-21kworker/u16:4+flush-8:010:07:064
2784908993533,2cyclictest3150996-21kworker/u16:4+events_unbound10:19:264
2784908993533,2cyclictest3009089-21kworker/u16:1+flush-8:009:26:294
2784922993433,0cyclictest0-21swapper/711:06:307
2784913993432,2cyclictest3346640-21kworker/u16:2+events_unbound11:27:135
2784913993432,2cyclictest2904192-21kworker/u16:0+events_unbound09:47:275
2784913993432,2cyclictest2904192-21kworker/u16:0+events_unbound09:47:275
2784908993432,2cyclictest3385501-21kworker/u16:0+flush-8:012:24:494
2784908993432,2cyclictest3150996-21kworker/u16:4+flush-8:010:02:094
2784908993432,2cyclictest3009089-21kworker/u16:1+flush-8:009:13:314
2784908993432,2cyclictest3009089-21kworker/u16:1+events_unbound09:18:054
2784908993432,2cyclictest2904192-21kworker/u16:0+flush-8:008:42:254
2784908993432,2cyclictest2904192-21kworker/u16:0+events_unbound10:13:504
2784922993332,0cyclictest0-21swapper/712:30:387
2784922993332,0cyclictest0-21swapper/712:30:387
2784922993332,0cyclictest0-21swapper/711:09:347
2784913993331,2cyclictest3385501-21kworker/u16:0+events_unbound11:57:335
2784913993331,2cyclictest3361185-21kworker/u16:3+flush-8:011:54:585
2784913993331,2cyclictest3227100-21kworker/u16:0+events_unbound11:01:455
2784913993330,2cyclictest3165881-21kworker/u16:3+events_unbound10:37:275
2784908993331,2cyclictest3385501-21kworker/u16:0+events_unbound11:59:464
2784908993331,2cyclictest3361185-21kworker/u16:3+events_unbound12:20:054
2784908993331,2cyclictest3309871-21kworker/u16:4+flush-8:012:10:294
2784908993331,2cyclictest3227100-21kworker/u16:0+flush-8:011:25:264
2784908993331,2cyclictest3165881-21kworker/u16:3+events_unbound10:10:024
2784908993330,2cyclictest3227100-21kworker/u16:0+events_unbound10:59:584
2784908993326,2cyclictest3113950-21kworker/u16:3+events_unbound09:43:374
2784908993326,2cyclictest3113950-21kworker/u16:3+events_unbound09:43:374
2784922993231,0cyclictest0-21swapper/712:35:457
2784922993231,0cyclictest0-21swapper/712:35:457
2784922993231,0cyclictest0-21swapper/710:38:397
2784922993231,0cyclictest0-21swapper/709:32:217
2784922993227,4cyclictest3483168-21latency_hist12:17:307
2784913993230,2cyclictest3361185-21kworker/u16:3+flush-8:012:29:465
2784913993230,2cyclictest3361185-21kworker/u16:3+flush-8:012:29:465
2784913993230,2cyclictest3200059-21kworker/u16:2+flush-8:010:20:255
2784913993230,2cyclictest3009089-21kworker/u16:1+events_unbound09:09:295
2784908993231,1cyclictest3150996-21kworker/u16:4+events_unbound10:25:264
2784908993230,2cyclictest3361185-21kworker/u16:3+events_unbound11:57:034
2784908993230,2cyclictest3165881-21kworker/u16:3+events_unbound11:08:354
2784908993230,2cyclictest3150996-21kworker/u16:4+events_unbound10:30:414
2784908993230,2cyclictest3009089-21kworker/u16:1+events_unbound09:10:194
2784922993130,0cyclictest0-21swapper/711:55:417
2784922993130,0cyclictest0-21swapper/710:45:347
2784922993130,0cyclictest0-21swapper/709:36:217
2784922993130,0cyclictest0-21swapper/709:24:067
2784922993129,1cyclictest3335767-21ssh11:15:427
2784922993129,1cyclictest3019039-21diskmemload12:18:057
2784922993129,1cyclictest0-21swapper/709:59:347
2784913993129,2cyclictest3297837-21kworker/u16:2+flush-8:011:02:345
2784913993129,2cyclictest3165881-21kworker/u16:3+flush-8:010:48:215
2784913993129,2cyclictest3078253-21kworker/u16:2+events_unbound10:07:125
2784913993129,2cyclictest2893881-21kworker/u16:4+flush-8:008:22:255
2784913993128,2cyclictest2904192-21kworker/u16:0+events_unbound09:32:425
2784908993129,2cyclictest3309871-21kworker/u16:4+flush-8:011:13:504
2784908993129,2cyclictest3165881-21kworker/u16:3+events_unbound10:50:154
2784908993129,2cyclictest2097566-21kworker/u16:2+events_unbound07:07:594
2784922993029,0cyclictest0-21swapper/712:03:177
2784922993029,0cyclictest0-21swapper/709:48:597
2784922993028,1cyclictest3030355-21ssh09:10:577
2784913993028,2cyclictest3385501-21kworker/u16:0+flush-8:011:46:465
2784913993028,2cyclictest3309871-21kworker/u16:4+flush-8:012:10:095
2784913993028,2cyclictest3009089-21kworker/u16:1+flush-8:009:26:195
2784913993028,2cyclictest2904192-21kworker/u16:0+flush-8:010:11:225
2784908993029,1cyclictest3361185-21kworker/u16:3+events_unbound12:30:154
2784908993029,1cyclictest3361185-21kworker/u16:3+events_unbound12:30:154
2784908993028,2cyclictest3385501-21kworker/u16:0+events_unbound11:45:494
2784908993028,2cyclictest3165881-21kworker/u16:3+events_unbound11:05:304
2784922992928,0cyclictest0-21swapper/712:25:457
2784922992928,0cyclictest0-21swapper/711:44:457
2784922992928,0cyclictest0-21swapper/710:22:187
2784922992928,0cyclictest0-21swapper/710:11:067
2784922992928,0cyclictest0-21swapper/709:43:147
2784922992928,0cyclictest0-21swapper/709:43:147
2784922992926,2cyclictest3019039-21diskmemload11:18:217
2784913992927,2cyclictest3309871-21kworker/u16:4+flush-8:011:30:135
2784908992927,2cyclictest3165881-21kworker/u16:3+events_unbound10:52:384
2784922992827,0cyclictest0-21swapper/710:06:077
2784922992827,0cyclictest0-21swapper/709:42:017
2784922992826,1cyclictest3286375-21rm10:54:377
2784922992825,1cyclictest3238832-21ssh10:36:587
2784913992826,2cyclictest3385501-21kworker/u16:0+flush-8:012:36:055
2784913992826,2cyclictest3385501-21kworker/u16:0+flush-8:012:36:055
2784913992826,2cyclictest3385501-21kworker/u16:0+flush-8:012:25:105
2784913992826,2cyclictest3346640-21kworker/u16:2+flush-8:011:33:585
2784913992826,2cyclictest3309871-21kworker/u16:4+events_unbound11:50:465
2784913992826,2cyclictest3309871-21kworker/u16:4+events_unbound11:50:465
2784913992826,2cyclictest3165881-21kworker/u16:3+flush-8:010:41:145
2784913992826,2cyclictest3150996-21kworker/u16:4+events_unbound10:14:395
2784913992826,2cyclictest3113950-21kworker/u16:3+flush-8:009:49:215
2784913992826,2cyclictest2097566-21kworker/u16:2+flush-8:008:42:545
2784908992826,2cyclictest3361185-21kworker/u16:3+events_unbound11:39:504
2784908992826,2cyclictest3227100-21kworker/u16:0+events_unbound10:38:434
2784922992726,0cyclictest0-21swapper/709:55:147
2784922992723,3cyclictest3019039-21diskmemload11:49:037
2784922992723,3cyclictest3019039-21diskmemload11:49:037
2784913992725,2cyclictest3227100-21kworker/u16:0+events_unbound11:14:025
2784913992725,2cyclictest3165881-21kworker/u16:3+flush-8:010:22:385
2784913992725,2cyclictest3165881-21kworker/u16:3+events_unbound10:44:105
2784913992725,2cyclictest3078253-21kworker/u16:2+events_unbound09:57:595
2784913992725,2cyclictest3009089-21kworker/u16:1+flush-8:009:15:135
2784922992625,0cyclictest0-21swapper/709:21:227
2784922992624,1cyclictest0-21swapper/710:25:557
278492299260,24cyclictest16030-21sshd12:00:387
2784913992624,2cyclictest3385501-21kworker/u16:0+events_unbound12:16:505
2784913992624,2cyclictest2904192-21kworker/u16:0+flush-8:009:39:385
2784908992624,2cyclictest3078253-21kworker/u16:2+flush-8:009:29:444
2784922992524,0cyclictest0-21swapper/711:34:197
2784922992523,1cyclictest0-21swapper/707:58:427
2784913992523,2cyclictest3361185-21kworker/u16:3+flush-8:012:07:055
2784913992523,2cyclictest3309871-21kworker/u16:4+events_unbound11:19:465
2784908992523,2cyclictest2097566-21kworker/u16:2+events_unbound07:39:414
2784908992522,2cyclictest2771469-21kworker/u16:4+flush-8:007:22:314
2784922992423,0cyclictest0-21swapper/712:09:337
2784922992423,0cyclictest0-21swapper/710:28:347
2784913992422,2cyclictest3165881-21kworker/u16:3+flush-8:010:31:305
2784913992422,2cyclictest2904192-21kworker/u16:0+events_unbound09:54:315
2784908992420,3cyclictest2893843-21pool-/usr/libex07:58:354
2784922992322,0cyclictest0-21swapper/711:25:347
2784922992320,2cyclictest3298865-21ssh11:00:137
2784913992321,2cyclictest2855712-21kworker/u16:1+events_unbound07:52:255
2784908992321,2cyclictest2097566-21kworker/u16:2+events_unbound07:33:024
2784922992221,0cyclictest0-21swapper/708:27:407
2784918992220,2cyclictest3150996-21kworker/u16:4+flush-8:010:22:506
2784922992120,0cyclictest0-21swapper/709:14:307
2784908992119,2cyclictest2836701-21kworker/u16:0+events_unbound07:50:594
2784908992119,2cyclictest2097566-21kworker/u16:2+flush-8:008:42:574
2784922992019,0cyclictest0-21swapper/708:33:397
2784913992018,2cyclictest2884551-21kworker/u16:3+events_unbound07:59:395
2784918991814,3cyclictest2097566-21kworker/u16:2+flush-8:008:47:576
2784913991816,2cyclictest2836701-21kworker/u16:0+events_unbound07:47:145
2784913991815,3cyclictest2746788-21kworker/u16:1+flush-8:007:07:565
2784908991816,2cyclictest2893881-21kworker/u16:4+flush-8:008:08:404
2784908991816,2cyclictest2771469-21kworker/u16:4+flush-8:007:13:434
2784922991713,3cyclictest1234-21snmpd08:53:527
2784918991714,2cyclictest3309871-21kworker/u16:4+flush-8:012:27:296
2784908991715,2cyclictest2097566-21kworker/u16:2+events_unbound07:53:434
278492299160,1cyclictest0-21swapper/708:02:567
2784918991614,2cyclictest3009089-21kworker/u16:1+events_unbound09:07:456
2784913991614,2cyclictest2097566-21kworker/u16:2+flush-8:007:52:535
2784913991614,2cyclictest2097566-21kworker/u16:2+events_unbound08:58:015
2784913991614,2cyclictest2097566-21kworker/u16:2+events_unbound08:06:395
2784908991614,2cyclictest2893881-21kworker/u16:4+events_unbound08:21:404
2784908991614,2cyclictest2097566-21kworker/u16:2+flush-8:008:27:524
2784908991614,2cyclictest2097566-21kworker/u16:2+events_unbound09:03:434
2784908991614,2cyclictest2097566-21kworker/u16:2+events_unbound09:03:434
2784908991614,2cyclictest2097566-21kworker/u16:2+events_unbound08:53:004
278492299156,7cyclictest6895-21gmain09:02:537
278492299156,7cyclictest6895-21gmain09:02:537
2784922991511,2cyclictest2865305-21munin-run07:47:307
278492299150,14cyclictest1234-21snmpd07:21:137
2784913991513,2cyclictest2904192-21kworker/u16:0+flush-8:008:36:395
2784913991513,2cyclictest2893881-21kworker/u16:4+flush-8:008:24:425
2784913991513,2cyclictest2771469-21kworker/u16:4+events_unbound07:12:485
2784913991513,1cyclictest2945009-21kthreadcore08:27:485
2784908991513,2cyclictest2097566-21kworker/u16:2+events_unbound07:29:394
2784922991412,1cyclictest0-21swapper/708:17:547
2784922991411,2cyclictest1234-21snmpd07:10:437
2784918991413,1cyclictest0-21swapper/611:28:586
2784918991413,1cyclictest0-21swapper/610:56:106
2784918991410,3cyclictest2904192-21kworker/u16:0+flush-8:008:38:286
278491899140,1cyclictest0-21swapper/612:03:586
278491899140,1cyclictest0-21swapper/610:10:086
278491899140,14cyclictest0-21swapper/609:45:516
278491899140,14cyclictest0-21swapper/609:45:516
278491899140,14cyclictest0-21swapper/609:19:416
2784913991412,2cyclictest2097566-21kworker/u16:2+events_unbound07:27:495
2784913991412,1cyclictest0-21swapper/508:47:595
2784908991412,2cyclictest2097566-21kworker/u16:2+flush-8:008:47:464
278492299139,3cyclictest6382-21gvfs-afc-volume08:37:427
278492299137,5cyclictest6032-21gmain07:12:337
278492299135,6cyclictest6895-21gmain07:22:417
2784922991311,1cyclictest0-21swapper/707:37:517
278492299130,11cyclictest1234-21snmpd07:32:257
278491899138,4cyclictest2856845-21cat07:42:456
2784918991312,1cyclictest0-21swapper/611:16:126
2784918991312,1cyclictest0-21swapper/609:53:256
2784918991312,1cyclictest0-21swapper/609:28:216
2784918991311,2cyclictest3309871-21kworker/u16:4+events_unbound11:37:456
278491899130,13cyclictest0-21swapper/610:18:206
2784913991311,2cyclictest2097566-21kworker/u16:2+flush-8:007:24:385
2784913991311,1cyclictest0-21swapper/508:37:355
278492299128,3cyclictest6895-21gmain08:22:537
278492299128,3cyclictest1234-21snmpd08:44:127
278492299126,5cyclictest6895-21gmain08:57:577
278492299126,5cyclictest6514-21gmain07:52:417
278492299126,5cyclictest6032-21gmain07:32:457
2784922991212,0cyclictest0-21swapper/707:48:427
278491899122,9cyclictest3293699-21kthreadcore10:57:506
2784918991211,1cyclictest0-21swapper/612:37:236
2784918991211,1cyclictest0-21swapper/612:37:236
2784918991210,2cyclictest3009089-21kworker/u16:1+events_unbound09:32:466
2784913991210,2cyclictest2904192-21kworker/u16:0+flush-8:008:12:255
2784908991210,2cyclictest2097566-21kworker/u16:2+flush-8:008:32:454
2784908991210,2cyclictest2097566-21kworker/u16:2+flush-8:007:17:514
2784922991110,0cyclictest0-21swapper/708:07:517
278492299110,10cyclictest2990194-21turbostat08:52:307
278491899119,2cyclictest2904192-21kworker/u16:0+flush-8:010:03:276
2784918991110,1cyclictest0-21swapper/612:14:326
2784918991110,1cyclictest0-21swapper/611:52:276
2784918991110,1cyclictest0-21swapper/611:52:276
2784918991110,1cyclictest0-21swapper/611:05:196
2784918991110,1cyclictest0-21swapper/610:46:336
2784918991110,1cyclictest0-21swapper/610:37:066
2784918991110,1cyclictest0-21swapper/610:01:476
2784918991110,1cyclictest0-21swapper/608:58:526
2784918991110,1cyclictest0-21swapper/608:44:416
2784918991110,1cyclictest0-21swapper/608:32:046
2784918991110,1cyclictest0-21swapper/607:41:476
278491899110,3cyclictest3059899-21kthreadcore09:22:486
278491899110,11cyclictest0-21swapper/609:51:566
278491899110,10cyclictest2936486-21cut08:22:486
278491399119,2cyclictest2893881-21kworker/u16:4+flush-8:008:12:535
278491399119,2cyclictest2771469-21kworker/u16:4+flush-8:007:18:405
278490899119,2cyclictest2855712-21kworker/u16:1+flush-8:007:42:464
278492299106,3cyclictest1234-21snmpd08:16:487
278491899108,2cyclictest86-21ksoftirqd/611:25:336
278491899108,2cyclictest86-21ksoftirqd/610:38:086
278491899104,5cyclictest0-21swapper/611:42:476
278491899103,6cyclictest3320460-21kthreadcore11:07:506
278491899103,6cyclictest0-21swapper/610:12:496
278491899100,9cyclictest0-21swapper/609:12:486
278491899100,9cyclictest0-21swapper/607:57:496
278491899100,9cyclictest0-21swapper/607:27:536
278491399108,2cyclictest2097566-21kworker/u16:2+flush-8:007:37:535
278491399106,3cyclictest2995990-21kthreadcore08:52:495
278491399100,9cyclictest0-21swapper/509:02:455
278491399100,9cyclictest0-21swapper/509:02:455
278490899108,2cyclictest2893881-21kworker/u16:4+events_unbound08:12:334
278490899108,2cyclictest2097566-21kworker/u16:2+events_unbound08:24:514
27849189997,2cyclictest86-21ksoftirqd/609:39:366
27849189995,3cyclictest3460074-21cat12:07:456
27849189995,3cyclictest2902846-21awk08:02:556
27849189995,3cyclictest2799148-21tune2fs07:12:456
27849189993,5cyclictest0-21swapper/611:52:426
27849189993,5cyclictest0-21swapper/610:27:506
27849189992,6cyclictest3484677-21irqcore12:17:456
27849189990,8cyclictest3375296-21kthreadcore11:32:476
27849189990,8cyclictest3345255-21kthreadcore11:17:516
27849189990,8cyclictest3268437-21cut10:47:486
27849189990,8cyclictest3010471-21perl09:02:446
27849189990,8cyclictest3010471-21perl09:02:446
27849189990,8cyclictest2875282-21/usr/sbin/munin07:52:466
27849189990,8cyclictest0-21swapper/607:32:476
27849189990,3cyclictest3434958-21awk11:57:426
27849189990,2cyclictest2904210-21/usr/sbin/munin08:07:556
27849189990,2cyclictest2808074-21/usr/sbin/munin07:17:446
27849139995,3cyclictest2097566-21kworker/u16:2+flush-8:007:33:005
27849089997,2cyclictest2893881-21kworker/u16:4+events_unbound08:07:124
27849189984,3cyclictest3509851-21kthreadcore12:27:466
27849189984,3cyclictest3509851-21kthreadcore12:27:466
27849189980,7cyclictest2953017-21iptables08:32:486
27849189980,7cyclictest2930242-21cut08:17:516
27849189980,7cyclictest2914055-21expr08:12:416
27849189980,7cyclictest0-21swapper/608:52:456
27849189980,7cyclictest0-21swapper/607:47:466
27849189980,7cyclictest0-21swapper/607:22:436
27849189980,7cyclictest0-21swapper/607:07:446
27849089985,2cyclictest2097566-21kworker/u16:2+events_unbound09:02:304
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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