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2026-04-04 - 17:24
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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 all highest latencies:
System rack0slot2.osadl.org (updated Sat Apr 04, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
320121821470,1sleep73201219-21kthreadcore09:52:487
2842698996560,4cyclictest3304672-21latency_hist10:37:267
2842693996056,3cyclictest3171266-21kworker/u16:3+flush-8:009:42:276
283325225948,7sleep60-21swapper/606:57:316
284217725242,7sleep40-21swapper/406:59:214
2842693995048,2cyclictest2875384-21kworker/u16:1+flush-8:010:17:546
284239724838,7sleep50-21swapper/507:02:275
2842693994644,2cyclictest2875384-21kworker/u16:1+flush-8:010:17:226
2842693994340,2cyclictest2841486-21kworker/u16:0+flush-8:007:22:276
284269899420,40cyclictest2970655-21latency_hist08:07:277
28332622403,31sleep70-21swapper/706:57:407
284269899380,36cyclictest3461544-21latency_hist11:42:277
2842693993836,2cyclictest2913643-21kworker/u16:4+flush-8:008:07:226
2842698993731,5cyclictest3136018-21latency_hist09:27:277
2842693993735,2cyclictest3268898-21kworker/u16:2+flush-8:011:17:386
2842698993630,5cyclictest2884548-21latency_hist07:22:277
2842693993531,3cyclictest2990215-21kworker/u16:0+flush-8:008:27:536
2842681993432,2cyclictest2875384-21kworker/u16:1+flush-8:009:47:224
2842698993327,5cyclictest650-21systemd-journal10:57:277
2842685993331,2cyclictest3268899-21kworker/u16:5+flush-8:011:24:575
2842681993330,2cyclictest3461966-21kworker/u16:2+flush-8:012:08:224
2842685993229,3cyclictest3304108-21kworker/u16:0+flush-8:011:08:215
2842698993126,4cyclictest3401137-21latency_hist11:17:267
2842693993129,2cyclictest3316782-21kworker/u16:1+events_unbound11:32:596
2842693993129,2cyclictest3087836-21kworker/u16:0+flush-8:009:32:576
2842698993029,0cyclictest0-21swapper/711:27:397
2842693993028,2cyclictest3087836-21kworker/u16:0+events_unbound09:52:586
30764212290,1chrt3076424-21cpuspeed_turbos09:02:397
2842693992927,2cyclictest3304108-21kworker/u16:0+flush-8:010:47:456
2842693992927,2cyclictest3268899-21kworker/u16:5+events_unbound12:02:266
2842693992927,2cyclictest3268899-21kworker/u16:5+events_unbound12:02:266
2842693992927,2cyclictest2823752-21kworker/u16:3+flush-8:007:17:276
2842693992927,2cyclictest2823752-21kworker/u16:3+flush-8:007:17:276
2842693992926,2cyclictest3461966-21kworker/u16:2+flush-8:012:12:376
2842685992922,6cyclictest3304108-21kworker/u16:0+flush-8:010:42:265
2842685992922,6cyclictest3304108-21kworker/u16:0+flush-8:010:42:265
2842681992927,2cyclictest3268898-21kworker/u16:2+events_unbound11:24:314
2842693992825,2cyclictest3304108-21kworker/u16:0+flush-8:010:37:436
2842693992825,2cyclictest3304108-21kworker/u16:0+flush-8:010:37:436
2842693992726,1cyclictest3461966-21kworker/u16:2+events_unbound12:27:546
2842681992725,2cyclictest3018169-21kworker/u16:3+events_unbound09:27:474
2842693992624,2cyclictest3316782-21kworker/u16:1+events_unbound11:12:546
2842693992624,2cyclictest3268899-21kworker/u16:5+events_unbound10:42:426
2842693992624,2cyclictest3171266-21kworker/u16:3+events_unbound09:47:556
2842693992624,2cyclictest2875384-21kworker/u16:1+flush-8:008:42:536
2842681992622,2cyclictest2990215-21kworker/u16:0+events_unbound08:27:454
2842698992523,1cyclictest3445424-21kthreadcore11:32:507
2842698992520,4cyclictest3377078-21latency_hist11:07:277
2842693992523,2cyclictest2875384-21kworker/u16:1+flush-8:008:37:596
2842693992523,2cyclictest2823752-21kworker/u16:3+flush-8:007:22:536
35491752240,1chrt3549176-21kthreadcore12:17:487
2842698992422,1cyclictest3410890-21ssh11:18:107
2842698992419,4cyclictest650-21systemd-journal10:07:217
2842693992422,2cyclictest2875384-21kworker/u16:1+flush-8:008:47:586
2842681992422,2cyclictest3018169-21kworker/u16:3+flush-8:009:22:454
2842698992317,4cyclictest2903671-21latency_hist07:32:277
2842681992321,2cyclictest3018169-21kworker/u16:3+events_unbound09:22:214
2842698992218,3cyclictest3423589-21pool-gnome-soft11:24:277
2842698992217,4cyclictest650-21systemd-journal10:32:277
2842681992220,2cyclictest3087836-21kworker/u16:0+flush-8:010:13:274
2842681992220,2cyclictest2875384-21kworker/u16:1+flush-8:008:02:224
2842698992120,1cyclictest0-21swapper/711:49:267
2842698992118,2cyclictest3506721-21ntpq11:57:547
2842698992118,2cyclictest3506721-21ntpq11:57:547
2842685992119,2cyclictest3316782-21kworker/u16:1+flush-8:010:58:215
2842681992119,2cyclictest3268899-21kworker/u16:5+events_unbound11:41:184
2842698992019,0cyclictest0-21swapper/707:12:567
2842698992019,0cyclictest0-21swapper/707:12:567
2842685992015,4cyclictest3018169-21kworker/u16:3+flush-8:009:17:325
2842681992018,2cyclictest3525365-21kworker/u16:3+events_unbound12:23:114
2842681992016,2cyclictest3316782-21kworker/u16:1+events_unbound12:21:184
2842698991917,1cyclictest3496536-21ssh11:55:147
2842698991912,6cyclictest0-21swapper/709:57:447
2842693991917,2cyclictest3220331-21kworker/u16:3+events_unbound10:07:556
2842681991917,2cyclictest3268899-21kworker/u16:5+events_unbound12:02:384
2842681991917,2cyclictest2841486-21kworker/u16:0+events_unbound07:02:524
2842698991818,0cyclictest0-21swapper/710:40:237
2842698991818,0cyclictest0-21swapper/710:40:237
2842698991816,2cyclictest107-21kcompactd012:17:267
2842698991815,2cyclictest1267-21snmpd07:45:337
2842698991813,4cyclictest2852095-21latency_hist07:07:277
2842698991811,6cyclictest0-21swapper/709:12:287
2842693991816,2cyclictest3268898-21kworker/u16:2+events_unbound10:52:506
2842693991816,2cyclictest2875384-21kworker/u16:1+flush-8:008:07:556
2842693991816,2cyclictest2823752-21kworker/u16:3+flush-8:007:47:466
2842681991816,2cyclictest3423928-21kworker/u16:6+flush-8:011:42:524
2842681991816,2cyclictest3316782-21kworker/u16:1+events_unbound11:01:354
2842681991816,2cyclictest3316782-21kworker/u16:1+events_unbound10:49:424
2842681991816,2cyclictest3304108-21kworker/u16:0+flush-8:010:42:484
2842681991816,2cyclictest3304108-21kworker/u16:0+events_unbound11:17:474
2842681991816,2cyclictest3268899-21kworker/u16:5+events_unbound11:56:584
2842681991816,2cyclictest3268898-21kworker/u16:2+events_unbound10:39:254
2842681991816,2cyclictest3268898-21kworker/u16:2+events_unbound10:39:254
2842681991816,2cyclictest3018169-21kworker/u16:3+events_unbound09:02:584
2842681991816,2cyclictest2875384-21kworker/u16:1+flush-8:007:37:224
2842681991816,2cyclictest2865451-21kworker/u16:2+events_unbound07:12:454
2842681991816,2cyclictest2865451-21kworker/u16:2+events_unbound07:12:454
2842681991814,2cyclictest3304108-21kworker/u16:0+events_unbound11:02:384
2842698991716,1cyclictest0-21swapper/709:49:407
2842698991715,1cyclictest2980679-21cpuspeed08:12:397
2842698991711,5cyclictest3365054-21latency_hist11:02:277
2842693991715,2cyclictest3268898-21kworker/u16:2+events_unbound10:57:516
2842681991715,2cyclictest3423928-21kworker/u16:6+flush-8:011:27:424
2842681991715,2cyclictest2980366-21kworker/u16:2+flush-8:008:17:544
2842698991616,0cyclictest0-21swapper/709:39:357
2842698991615,1cyclictest3075800-21diskmemload10:07:597
2842698991615,1cyclictest3075800-21diskmemload09:44:107
2842698991611,4cyclictest3028067-21latency_hist08:37:277
2842693991614,2cyclictest2841486-21kworker/u16:0+events_unbound07:02:496
2842693991614,2cyclictest2823752-21kworker/u16:3+events_unbound07:27:556
284268599160,1cyclictest0-21swapper/509:32:385
284268599160,13cyclictest0-21swapper/510:47:035
2842681991614,2cyclictest3461966-21kworker/u16:2+events_unbound12:01:224
2842681991614,2cyclictest3461966-21kworker/u16:2+events_unbound12:01:224
2842681991614,2cyclictest3423928-21kworker/u16:6+events_unbound11:34:274
2842681991614,2cyclictest3208018-21kworker/u16:2+events_unbound10:04:474
2842681991614,2cyclictest2875384-21kworker/u16:1+flush-8:009:53:544
2842681991614,2cyclictest2823752-21kworker/u16:3+events_unbound07:28:014
284269899158,6cyclictest0-21swapper/712:22:577
284269899157,7cyclictest0-21swapper/711:46:017
2842698991515,0cyclictest0-21swapper/710:18:107
2842698991514,1cyclictest3533097-21ssh12:10:527
2842698991513,1cyclictest96-21ksoftirqd/709:35:077
2842698991512,2cyclictest3052422-21tr08:47:477
2842698991512,2cyclictest0-21swapper/707:07:517
2842693991513,2cyclictest3268899-21kworker/u16:5+flush-8:011:53:036
2842693991512,3cyclictest3423928-21kworker/u16:6+events_unbound11:27:536
2842693991512,2cyclictest3316782-21kworker/u16:1+flush-8:011:22:506
2842681991513,2cyclictest3525365-21kworker/u16:3+flush-8:012:28:054
2842681991513,2cyclictest3304108-21kworker/u16:0+events_unbound10:52:464
2842681991513,2cyclictest3268899-21kworker/u16:5+events_unbound10:22:544
2842681991513,2cyclictest3268898-21kworker/u16:2+events_unbound11:15:554
2842681991513,2cyclictest3087836-21kworker/u16:0+events_unbound09:11:204
2842681991513,2cyclictest2980366-21kworker/u16:2+events_unbound08:32:464
2842681991513,2cyclictest2875384-21kworker/u16:1+events_unbound10:07:354
2842681991513,2cyclictest2875384-21kworker/u16:1+events_unbound07:52:564
284268199150,1cyclictest0-21swapper/409:59:234
284269899146,7cyclictest0-21swapper/710:44:587
284269899146,7cyclictest0-21swapper/710:23:507
284269899146,7cyclictest0-21swapper/709:12:237
2842698991414,0cyclictest0-21swapper/712:07:237
2842698991412,1cyclictest3388871-21ssh11:11:597
2842698991411,2cyclictest3118124-21cut09:17:517
284269899140,13cyclictest1267-21snmpd08:25:037
2842693991412,2cyclictest3316782-21kworker/u16:1+events_unbound11:37:566
284269399140,14cyclictest0-21swapper/609:27:276
284269399140,14cyclictest0-21swapper/609:04:356
2842685991413,1cyclictest0-21swapper/511:57:505
2842685991413,1cyclictest0-21swapper/511:57:505
2842685991411,3cyclictest0-21swapper/510:21:595
2842685991411,1cyclictest0-21swapper/509:44:095
2842685991410,1cyclictest0-21swapper/511:40:295
284268599140,1cyclictest0-21swapper/510:02:545
284268599140,14cyclictest0-21swapper/512:03:405
2842681991413,1cyclictest0-21swapper/410:36:264
2842681991412,2cyclictest3525365-21kworker/u16:3+events_unbound12:13:174
2842681991412,2cyclictest3268899-21kworker/u16:5+flush-8:010:28:034
2842681991412,2cyclictest3046293-21kworker/u16:2+events_unbound09:32:424
2842681991412,2cyclictest2823752-21kworker/u16:3+flush-8:007:37:454
2842681991412,2cyclictest2823752-21kworker/u16:3+flush-8:007:22:504
284268199140,14cyclictest0-21swapper/409:15:244
284269899139,3cyclictest3057058-21/usr/sbin/munin08:52:537
284269899139,3cyclictest1267-21snmpd07:56:517
284269899136,6cyclictest0-21swapper/710:12:297
284269899135,7cyclictest0-21swapper/709:30:107
284269899131,7cyclictest3580274-21ssh12:28:597
2842698991310,2cyclictest3337836-21ntpq10:47:557
2842698991310,2cyclictest1267-21snmpd08:01:097
2842698991310,2cyclictest0-21swapper/708:57:507
284269899130,11cyclictest3011578-21cat08:27:447
2842693991312,1cyclictest0-21swapper/612:19:466
2842693991311,2cyclictest3087836-21kworker/u16:0+flush-8:009:57:426
2842693991311,2cyclictest2980366-21kworker/u16:2+flush-8:008:17:226
2842693991311,2cyclictest2875384-21kworker/u16:1+events_unbound09:42:546
2842693991310,2cyclictest3220331-21kworker/u16:3+flush-8:010:32:436
284269399130,13cyclictest0-21swapper/610:23:066
284269399130,13cyclictest0-21swapper/609:14:036
284269399130,13cyclictest0-21swapper/608:17:466
2842685991312,1cyclictest0-21swapper/512:11:235
2842685991312,1cyclictest0-21swapper/509:59:075
2842685991312,1cyclictest0-21swapper/507:57:445
284268599130,13cyclictest0-21swapper/512:24:575
284268599130,13cyclictest0-21swapper/510:29:425
284268599130,13cyclictest0-21swapper/509:09:565
284268599130,0cyclictest0-21swapper/510:23:525
2842681991312,1cyclictest0-21swapper/409:37:284
2842681991312,1cyclictest0-21swapper/408:44:114
2842681991311,2cyclictest3423928-21kworker/u16:6+events_unbound11:49:584
2842681991311,2cyclictest3304108-21kworker/u16:0+flush-8:011:07:514
2842681991311,2cyclictest3220331-21kworker/u16:3+events_unbound10:18:144
2842681991311,2cyclictest2875384-21kworker/u16:1+flush-8:008:02:474
2842681991310,2cyclictest2841486-21kworker/u16:0+flush-8:007:07:284
284269899128,3cyclictest2921916-21ntpq07:37:537
284269899128,3cyclictest1267-21snmpd08:42:587
284269899128,3cyclictest1267-21snmpd07:47:577
284269899125,6cyclictest6045-21gmain08:08:347
284269899120,6cyclictest3028457-21/usr/sbin/munin08:37:427
284269899120,5cyclictest2885235-21cstates07:22:407
284269899120,10cyclictest2904841-21cat07:32:427
2842693991211,1cyclictest3268898-21kworker/u16:2+flush-8:011:07:276
2842693991211,1cyclictest0-21swapper/609:19:446
2842693991211,1cyclictest0-21swapper/609:08:226
284269399120,1cyclictest0-21swapper/611:48:246
284269399120,0cyclictest0-21swapper/611:46:306
2842685991211,1cyclictest0-21swapper/512:17:135
2842685991211,1cyclictest0-21swapper/511:06:175
2842685991211,1cyclictest0-21swapper/510:50:505
2842685991211,1cyclictest0-21swapper/509:23:015
2842685991211,1cyclictest0-21swapper/508:53:515
2842685991211,1cyclictest0-21swapper/507:31:335
284268599120,1cyclictest0-21swapper/508:49:455
2842681991211,1cyclictest0-21swapper/408:50:294
2842681991211,1cyclictest0-21swapper/408:37:534
2842681991210,2cyclictest2875384-21kworker/u16:1+flush-8:007:42:514
2842681991210,2cyclictest2875384-21kworker/u16:1+events_unbound08:24:324
284268199120,1cyclictest0-21swapper/407:51:324
284268199120,12cyclictest0-21swapper/408:15:304
284269899118,2cyclictest2999076-21users08:17:577
284269399119,2cyclictest3316782-21kworker/u16:1+events_unbound12:22:556
2842693991110,1cyclictest0-21swapper/608:24:046
2842693991110,1cyclictest0-21swapper/607:43:246
284269399110,0cyclictest0-21swapper/608:34:486
2842685991110,1cyclictest0-21swapper/512:28:445
2842685991110,1cyclictest0-21swapper/511:55:565
2842685991110,1cyclictest0-21swapper/511:13:515
2842685991110,1cyclictest0-21swapper/510:33:295
2842685991110,1cyclictest0-21swapper/510:08:355
2842685991110,1cyclictest0-21swapper/509:53:275
2842685991110,1cyclictest0-21swapper/507:10:355
284268599110,11cyclictest0-21swapper/507:55:315
284268599110,11cyclictest0-21swapper/507:43:235
284268599110,11cyclictest0-21swapper/507:36:175
284268599110,11cyclictest0-21swapper/507:24:285
284268599110,0cyclictest0-21swapper/508:38:525
284268199119,2cyclictest3046293-21kworker/u16:2+events_unbound08:58:204
284268199119,2cyclictest2875384-21kworker/u16:1+flush-8:009:48:114
284268199119,2cyclictest2875384-21kworker/u16:1+flush-8:008:07:434
284269399109,1cyclictest0-21swapper/611:09:466
284269399109,1cyclictest0-21swapper/608:58:176
284269399109,1cyclictest0-21swapper/607:57:456
284269399109,1cyclictest0-21swapper/607:55:326
284269399108,2cyclictest3268899-21kworker/u16:5+events_unbound10:30:026
284268599109,1cyclictest0-21swapper/511:50:065
284268599109,1cyclictest0-21swapper/511:36:425
284268599109,1cyclictest0-21swapper/510:54:375
284268599109,1cyclictest0-21swapper/507:50:385
284268599109,1cyclictest0-21swapper/507:12:485
284268599109,1cyclictest0-21swapper/507:12:485
284268599100,0cyclictest0-21swapper/509:00:095
284268199108,2cyclictest2823752-21kworker/u16:3+events_unbound07:17:534
284268199107,2cyclictest2875384-21kworker/u16:1+events_unbound08:52:404
28426939998,1cyclictest0-21swapper/612:04:006
28426939998,1cyclictest0-21swapper/607:41:026
28426939998,1cyclictest0-21swapper/607:33:476
28426939997,2cyclictest3461966-21kworker/u16:2+flush-8:012:07:576
28426859998,1cyclictest0-21swapper/511:17:385
28426859998,1cyclictest0-21swapper/510:14:155
28426859998,1cyclictest0-21swapper/509:13:345
28426859998,1cyclictest0-21swapper/508:23:545
28426859998,1cyclictest0-21swapper/508:21:515
28426859998,1cyclictest0-21swapper/508:06:435
28426859998,1cyclictest0-21swapper/507:41:015
28426859998,1cyclictest0-21swapper/507:19:445
28426939987,1cyclictest0-21swapper/609:29:216
28426939987,1cyclictest0-21swapper/608:56:146
28426939986,2cyclictest2875384-21kworker/u16:1+events_unbound10:03:076
28426859987,1cyclictest0-21swapper/511:44:165
28426859987,1cyclictest0-21swapper/508:43:085
28426859987,1cyclictest0-21swapper/507:06:015
28426859985,3cyclictest3018169-21kworker/u16:3+flush-8:009:32:265
28426859984,3cyclictest1-21systemd11:32:265
28426939974,2cyclictest2852488-21uptime07:07:296
28426859976,1cyclictest0-21swapper/509:47:465
28426859976,1cyclictest0-21swapper/508:15:335
28426859975,2cyclictest2913643-21kworker/u16:4+flush-8:008:07:455
28426859974,2cyclictest35567212sleep512:19:555
28426859965,1cyclictest0-21swapper/508:32:255
28426859963,2cyclictest31697172sleep509:38:055
28426859960,1cyclictest0-21swapper/508:36:225
28426859950,5cyclictest0-21swapper/509:02:555
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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