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2026-06-19 - 15:09
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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 Jun 19, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
323837126049,7sleep40-21swapper/407:07:464
323851925520,30sleep70-21swapper/707:09:507
322923224535,7sleep50-21swapper/507:04:595
3238800993533,2cyclictest3563377-21kworker/u16:1+flush-8:011:34:465
3238800993331,2cyclictest3209625-21kworker/u16:0+events_unbound07:14:545
3238800993229,2cyclictest3909902-21kworker/u16:2+flush-8:012:20:015
3238800993229,2cyclictest3909902-21kworker/u16:2+flush-8:012:20:015
36384902310,1sleep60-21swapper/610:15:066
32919062310,1chrt3291908-21cpuspeed_turbos07:35:057
3238800993028,2cyclictest3732977-21kworker/u16:3+flush-8:010:59:475
323836423020,7sleep60-21swapper/607:07:406
39731082290,1chrt0-21swapper/412:30:084
39208192290,1chrt0-21swapper/512:07:575
37374012290,1chrt3737402-21ssh10:55:067
34338312280,0chrt0-21swapper/408:45:134
39444612270,1chrt3944460-21ssh12:16:087
39444612270,1chrt3944460-21ssh12:16:087
32871772270,1chrt0-21swapper/407:30:134
3238805992724,2cyclictest3869196-21ntpq11:45:177
3238800992624,2cyclictest3848000-21kworker/u16:4+flush-8:012:00:535
3238800992624,2cyclictest3406109-21kworker/u16:1+events_unbound08:45:065
3238800992624,2cyclictest3348635-21kworker/u16:2+flush-8:008:10:235
323880599250,23cyclictest1345-21dockerd09:20:507
3238795992520,4cyclictest3897167-21latency_hist11:59:514
38925132240,0sleep5741rcuc/511:55:145
3238805992423,0cyclictest0-21swapper/710:39:047
3238805992423,0cyclictest0-21swapper/710:30:347
3238805992322,0cyclictest0-21swapper/707:50:167
3238800992319,3cyclictest3359412-21cat08:09:525
3238800992319,3cyclictest3359412-21cat08:09:525
3238805992221,0cyclictest0-21swapper/711:06:127
3238800992220,2cyclictest3773328-21kworker/u16:2+flush-8:011:25:225
3238795992217,4cyclictest3909547-21latency_hist12:04:514
3238805992120,0cyclictest0-21swapper/710:42:497
3238805992120,0cyclictest0-21swapper/708:28:377
3238800992119,2cyclictest3535760-21kworker/u16:0+flush-8:010:00:225
3238795992116,4cyclictest3300965-21latency_hist07:39:524
3238805992019,0cyclictest0-21swapper/712:30:317
3238805992019,0cyclictest0-21swapper/711:55:277
3238805992019,0cyclictest0-21swapper/709:09:387
3238805992019,0cyclictest0-21swapper/708:46:597
3238800992015,4cyclictest3271800-21awk07:24:515
3238795992016,3cyclictest3281491-21latency_hist07:29:524
3238805991918,0cyclictest0-21swapper/708:52:577
3238805991918,0cyclictest0-21swapper/707:44:417
3238805991917,1cyclictest0-21swapper/709:53:457
3238805991916,2cyclictest3497919-21smart_sda09:15:227
3238800991917,2cyclictest3848000-21kworker/u16:4+flush-8:012:15:585
3238800991917,2cyclictest3848000-21kworker/u16:4+flush-8:012:15:585
3238800991917,2cyclictest3732977-21kworker/u16:3+events_unbound11:10:225
3238805991817,0cyclictest0-21swapper/709:45:277
3238805991817,0cyclictest0-21swapper/708:30:427
3238805991817,0cyclictest0-21swapper/708:11:587
3238805991817,0cyclictest0-21swapper/707:57:317
3238805991817,0cyclictest0-21swapper/707:17:357
3238805991813,4cyclictest650-21systemd-journal11:04:517
3238800991816,2cyclictest3610372-21kworker/u16:3+flush-8:010:15:085
3238800991816,2cyclictest3348635-21kworker/u16:2+flush-8:008:35:095
3238800991816,2cyclictest3247436-21kworker/u16:4+flush-8:008:50:185
3238800991815,2cyclictest3848000-21kworker/u16:4+events_unbound11:50:065
3238800991815,2cyclictest3501369-21kworker/u16:0+flush-8:009:20:065
3238805991716,0cyclictest0-21swapper/712:05:097
3238805991716,0cyclictest0-21swapper/709:02:577
3238805991715,1cyclictest3624843-21ssh10:09:477
3238805991713,3cyclictest1278-21snmpd08:06:397
3238805991713,3cyclictest1278-21snmpd08:06:397
3238800991715,2cyclictest3563377-21kworker/u16:1+flush-8:010:49:475
3238800991715,2cyclictest3465371-21kworker/u16:3+flush-8:009:05:075
35169622160,0sleep40-21swapper/409:25:114
3238805991615,0cyclictest0-21swapper/710:24:517
3238805991615,0cyclictest0-21swapper/708:22:577
3238805991615,0cyclictest0-21swapper/707:12:147
3238805991614,1cyclictest3949939-21kthreadcore12:20:107
3238805991614,1cyclictest3949939-21kthreadcore12:20:107
3238805991614,1cyclictest0-21swapper/711:35:357
323880199160,3cyclictest3687206-21cat10:34:526
323879599160,15cyclictest0-21swapper/412:10:484
323880599158,6cyclictest6634-21gmain09:10:177
3238805991514,0cyclictest0-21swapper/708:58:497
3238805991514,0cyclictest0-21swapper/708:41:187
3238805991514,0cyclictest0-21swapper/707:31:557
3238805991514,0cyclictest0-21swapper/707:28:007
3238801991511,3cyclictest3612523-21awk10:04:516
323880199150,14cyclictest0-21swapper/609:24:566
3238800991513,2cyclictest3563377-21kworker/u16:1+flush-8:011:35:225
3238800991513,2cyclictest3348635-21kworker/u16:2+flush-8:010:10:225
3238800991513,2cyclictest3348635-21kworker/u16:2+flush-8:010:10:225
3238800991513,2cyclictest3209625-21kworker/u16:0+flush-8:007:10:085
323880099150,1cyclictest0-21swapper/509:45:145
323879599150,1cyclictest0-21swapper/409:45:554
323880599149,4cyclictest3341057-21cat08:00:067
323880599149,4cyclictest3341057-21cat08:00:067
3238805991413,0cyclictest0-21swapper/708:35:237
3238805991411,2cyclictest1278-21snmpd10:15:397
3238801991413,1cyclictest0-21swapper/611:21:276
3238801991413,1cyclictest0-21swapper/610:44:146
3238801991413,1cyclictest0-21swapper/609:44:296
323880199140,1cyclictest0-21swapper/612:01:106
323880199140,1cyclictest0-21swapper/609:39:366
323880199140,14cyclictest0-21swapper/612:25:276
323880199140,14cyclictest0-21swapper/612:19:286
323880199140,14cyclictest0-21swapper/612:19:286
323880199140,14cyclictest0-21swapper/611:13:436
3238800991413,1cyclictest0-21swapper/511:15:345
3238800991413,1cyclictest0-21swapper/510:23:145
3238800991413,1cyclictest0-21swapper/509:40:215
3238800991412,2cyclictest3672929-21kworker/u16:0+events_unbound10:30:065
323880099140,14cyclictest0-21swapper/509:25:505
3238795991413,1cyclictest0-21swapper/412:18:224
3238795991413,1cyclictest0-21swapper/412:18:224
3238795991413,1cyclictest0-21swapper/411:15:564
3238795991410,3cyclictest3262152-21cat07:19:524
323879599140,1cyclictest0-21swapper/412:28:564
323879599140,1cyclictest0-21swapper/409:15:204
323879599140,14cyclictest0-21swapper/409:21:484
323880599139,3cyclictest3513840-21/usr/sbin/munin09:25:177
323880599139,3cyclictest1278-21snmpd11:49:577
323880599139,3cyclictest1278-21snmpd11:12:297
323880599139,3cyclictest1278-21snmpd07:47:247
323880599138,4cyclictest3551894-21cat09:40:087
3238805991313,0cyclictest0-21swapper/712:39:077
3238805991312,0cyclictest0-21swapper/709:35:267
3238805991311,1cyclictest3726404-21kthreadcore10:50:097
3238805991310,2cyclictest1278-21snmpd11:26:177
3238805991310,2cyclictest0-21swapper/709:30:187
3238801991312,1cyclictest0-21swapper/612:34:366
3238801991312,1cyclictest0-21swapper/611:33:546
3238801991312,1cyclictest0-21swapper/610:54:576
323880199130,13cyclictest0-21swapper/612:22:276
323880199130,13cyclictest0-21swapper/612:22:276
323880199130,13cyclictest0-21swapper/611:56:366
323880199130,13cyclictest0-21swapper/611:52:026
323880199130,13cyclictest0-21swapper/610:38:056
323880199130,13cyclictest0-21swapper/609:23:226
323880199130,0cyclictest0-21swapper/611:38:286
3238800991312,1cyclictest0-21swapper/512:36:175
3238800991312,1cyclictest0-21swapper/511:47:445
3238800991312,1cyclictest0-21swapper/511:40:105
3238800991312,1cyclictest0-21swapper/510:29:225
3238800991312,1cyclictest0-21swapper/510:07:185
3238800991311,2cyclictest3909902-21kworker/u16:2+events_unbound12:10:105
3238800991311,2cyclictest3672929-21kworker/u16:0+events_unbound10:50:065
3238800991311,2cyclictest3672929-21kworker/u16:0+events_unbound10:40:105
323880099130,13cyclictest0-21swapper/512:33:175
323880099130,13cyclictest0-21swapper/507:28:045
3238795991312,1cyclictest0-21swapper/412:06:144
3238795991312,1cyclictest0-21swapper/411:43:324
3238795991312,1cyclictest0-21swapper/411:09:474
3238795991312,1cyclictest0-21swapper/410:49:464
3238795991312,1cyclictest0-21swapper/409:52:134
3238795991312,1cyclictest0-21swapper/409:13:454
323879599130,1cyclictest0-21swapper/410:22:114
323879599130,13cyclictest0-21swapper/411:46:314
323879599130,13cyclictest0-21swapper/409:37:534
323879599130,13cyclictest0-21swapper/407:21:024
323880599129,2cyclictest3270879-21ntpq07:20:197
323880599128,3cyclictest3786139-21/usr/sbin/munin11:15:237
323880599128,3cyclictest1278-21snmpd12:02:037
323880599128,3cyclictest1278-21snmpd11:30:537
323880599128,3cyclictest1278-21snmpd11:20:237
323880599128,3cyclictest1278-21snmpd09:55:127
323880599125,6cyclictest6247-21gmain10:10:097
323880599125,6cyclictest6247-21gmain10:10:097
3238805991210,1cyclictest3960096-21tune2fs12:25:047
3238805991210,1cyclictest0-21swapper/708:15:147
323880599120,11cyclictest3860060-21turbostat11:44:517
323880199124,7cyclictest0-21swapper/609:09:526
3238801991211,1cyclictest0-21swapper/612:39:106
3238801991211,1cyclictest0-21swapper/611:39:536
3238801991211,1cyclictest0-21swapper/611:07:256
3238801991211,1cyclictest0-21swapper/610:13:016
3238801991211,1cyclictest0-21swapper/610:13:016
3238801991211,1cyclictest0-21swapper/609:55:316
3238801991211,1cyclictest0-21swapper/609:18:286
3238801991211,1cyclictest0-21swapper/608:49:476
323880099129,2cyclictest3406109-21kworker/u16:1+events_unbound09:10:095
3238800991211,1cyclictest0-21swapper/512:28:435
3238800991211,1cyclictest0-21swapper/509:56:165
3238800991211,1cyclictest0-21swapper/509:38:465
3238800991211,1cyclictest0-21swapper/509:32:185
3238800991210,2cyclictest3563377-21kworker/u16:1+flush-8:011:20:145
323880099120,1cyclictest0-21swapper/507:45:345
3238795991211,1cyclictest0-21swapper/411:35:584
3238795991211,1cyclictest0-21swapper/410:39:034
3238795991211,1cyclictest0-21swapper/408:14:004
323879599120,1cyclictest0-21swapper/408:37:494
323880599117,3cyclictest1278-21snmpd10:28:097
323880599116,5cyclictest6247-21gmain10:00:097
3238805991111,0cyclictest0-21swapper/710:46:457
323880199119,2cyclictest86-21ksoftirqd/612:12:096
3238801991110,1cyclictest0-21swapper/609:31:246
3238801991110,1cyclictest0-21swapper/608:41:066
3238801991110,1cyclictest0-21swapper/608:30:526
3238801991110,1cyclictest0-21swapper/607:38:416
3238801991110,1cyclictest0-21swapper/607:31:356
323880199110,11cyclictest0-21swapper/608:27:336
323880199110,11cyclictest0-21swapper/607:28:076
323880099119,2cyclictest3247436-21kworker/u16:4+events_unbound07:34:545
3238800991110,1cyclictest0-21swapper/508:40:355
323880099110,11cyclictest0-21swapper/508:59:315
323880099110,11cyclictest0-21swapper/507:52:495
3238795991110,1cyclictest0-21swapper/410:34:284
323879599110,1cyclictest0-21swapper/409:08:524
323879599110,11cyclictest0-21swapper/409:01:564
323879599110,11cyclictest0-21swapper/408:25:504
323879599110,11cyclictest0-21swapper/407:56:404
323879599110,11cyclictest0-21swapper/407:42:094
323880199109,1cyclictest0-21swapper/611:47:276
323880199109,1cyclictest0-21swapper/609:01:466
323880199109,1cyclictest0-21swapper/607:53:016
323880199108,2cyclictest86-21ksoftirqd/611:25:156
323880199107,2cyclictest3239022-21/usr/sbin/munin07:10:126
323880199103,6cyclictest0-21swapper/609:11:566
323879599109,1cyclictest0-21swapper/412:24:224
323879599109,1cyclictest0-21swapper/412:24:224
323879599109,1cyclictest0-21swapper/411:23:404
323879599109,1cyclictest0-21swapper/410:54:204
323879599109,1cyclictest0-21swapper/410:43:374
323879599109,1cyclictest0-21swapper/407:14:064
32388059994,4cyclictest3922507-21wc12:10:037
32388019998,1cyclictest0-21swapper/609:50:486
32388019998,1cyclictest0-21swapper/608:03:456
32388019998,1cyclictest0-21swapper/608:03:456
32388019997,2cyclictest86-21ksoftirqd/612:07:536
32388019997,2cyclictest86-21ksoftirqd/611:02:006
32388019997,2cyclictest86-21ksoftirqd/610:51:066
32388019997,2cyclictest86-21ksoftirqd/610:46:326
32388019997,2cyclictest86-21ksoftirqd/610:23:356
32388019997,2cyclictest86-21ksoftirqd/610:08:016
32388019993,5cyclictest0-21swapper/611:19:516
32388019990,3cyclictest3456999-21latency_hist08:59:526
32388009998,1cyclictest0-21swapper/510:38:315
32388009998,1cyclictest0-21swapper/509:19:225
32388009997,2cyclictest3398631-21kworker/u16:0+events_unbound08:30:215
32388009997,2cyclictest3247435-21kworker/u16:3+events_unbound07:30:215
32388009990,3cyclictest3310750-21date07:44:525
32387959998,1cyclictest0-21swapper/411:54:054
32387959998,1cyclictest0-21swapper/410:06:154
32387959998,1cyclictest0-21swapper/409:41:024
32387959998,1cyclictest0-21swapper/409:31:254
32387959998,1cyclictest0-21swapper/408:55:004
32387959998,1cyclictest0-21swapper/408:51:324
32387959998,1cyclictest0-21swapper/408:03:454
32387959998,1cyclictest0-21swapper/408:03:454
32387959998,1cyclictest0-21swapper/407:53:024
32388019987,1cyclictest0-21swapper/609:47:386
32388019987,1cyclictest0-21swapper/607:49:246
32388019987,1cyclictest0-21swapper/607:42:096
32388019987,1cyclictest0-21swapper/607:21:016
32388019986,2cyclictest86-21ksoftirqd/610:26:136
32388009987,1cyclictest0-21swapper/509:01:055
32388009986,2cyclictest3732977-21kworker/u16:3+flush-8:011:05:535
32388009980,7cyclictest0-21swapper/508:04:235
32388009980,7cyclictest0-21swapper/508:04:235
32387959987,1cyclictest0-21swapper/412:39:304
32387959987,1cyclictest0-21swapper/410:10:594
32387959987,1cyclictest0-21swapper/410:10:594
32387959987,1cyclictest0-21swapper/407:49:254
32387959986,1cyclictest0-21swapper/411:34:514
32387959984,3cyclictest3407956-21/usr/sbin/munin08:34:524
32387959980,4cyclictest3600156-21cut09:59:514
3648384270,1sleep40-21swapper/410:17:374
32388019976,1cyclictest0-21swapper/608:15:346
32388019976,1cyclictest0-21swapper/608:05:196
32388019976,1cyclictest0-21swapper/608:05:196
32388019975,2cyclictest86-21ksoftirqd/608:10:176
32388019975,2cyclictest3247436-21kworker/u16:4+flush-8:007:55:236
32388019975,1cyclictest0-21swapper/608:54:526
32388019970,1cyclictest0-21swapper/607:14:576
32388009976,1cyclictest0-21swapper/511:04:415
32388009976,1cyclictest0-21swapper/509:49:585
32388009974,2cyclictest3388548-21munin-run08:24:525
32388009973,3cyclictest3340027-21cat07:59:525
32387959976,1cyclictest0-21swapper/410:58:554
32387959976,1cyclictest0-21swapper/410:28:204
32387959976,1cyclictest0-21swapper/409:59:574
32387959973,3cyclictest3761158-21cut11:04:524
32387959973,3cyclictest3388585-21latency_hist08:24:524
32388019964,2cyclictest86-21ksoftirqd/608:35:216
32388019960,6cyclictest0-21swapper/608:21:036
32388009962,3cyclictest3378829-21awk08:19:525
32388009960,1cyclictest0-21swapper/508:25:565
32387959965,1cyclictest0-21swapper/408:15:354
32387959963,2cyclictest980185-21kworker/4:0-events08:44:524
32387959963,2cyclictest3822885-21turbostat11:29:514
32387959962,3cyclictest3359319-21ls08:09:524
32387959962,3cyclictest3359319-21ls08:09:524
32387959960,2cyclictest3785659-21perf11:14:514
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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