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2026-03-06 - 18:34
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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 Mar 06, 2026 12:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
320663721050,1sleep70-21swapper/707:29:427
37928652710,1sleep73792863-21ssh11:52:597
314835626453,7sleep60-21swapper/607:02:266
314835626453,7sleep60-21swapper/607:02:266
3148781996256,5cyclictest3467785-21latency_hist09:39:227
3148781994843,4cyclictest3733312-21latency_hist11:29:227
3148772994745,2cyclictest3784064-21kworker/u16:1+events_unbound12:31:164
3148778994643,2cyclictest3540197-21kworker/u16:4+flush-8:010:19:226
3148778994643,2cyclictest3540197-21kworker/u16:4+flush-8:010:19:226
626589450,38rtkit-daemon0-21swapper/407:01:054
626589450,38rtkit-daemon0-21swapper/407:01:054
3148778994543,2cyclictest3540197-21kworker/u16:4+flush-8:011:09:226
3148772994543,2cyclictest3722951-21kworker/u16:1+events_unbound11:32:274
3148772994543,2cyclictest3722951-21kworker/u16:1+events_unbound11:32:274
3148772994442,2cyclictest3443742-21kworker/u16:3+events_unbound09:37:324
3148772994442,2cyclictest3404717-21kworker/u16:2+events_unbound09:45:564
314878199430,41cyclictest3672888-21latency_hist11:04:227
3148772994341,2cyclictest3767899-21kworker/u16:0+events_unbound12:01:284
3148772994341,2cyclictest3354879-21kworker/u16:1+flush-8:009:59:224
3148772994340,2cyclictest3540197-21kworker/u16:4+events_unbound10:29:314
314826124331,8sleep50-21swapper/507:01:055
314826124331,8sleep50-21swapper/507:01:055
3148772994240,2cyclictest3369413-21kworker/u16:0+events_unbound09:27:324
3148772994240,2cyclictest3369413-21kworker/u16:0+events_unbound09:20:404
3148772994240,2cyclictest3354879-21kworker/u16:1+events_unbound10:28:284
3148776994138,2cyclictest3738567-21kworker/u16:3+flush-8:011:49:395
3148772994139,2cyclictest3443742-21kworker/u16:3+events_unbound10:07:364
3148772994139,2cyclictest3404717-21kworker/u16:2+events_unbound10:10:284
3148772994138,2cyclictest3540197-21kworker/u16:4+events_unbound11:25:154
31393572416,29sleep70-21swapper/706:59:387
31393572416,29sleep70-21swapper/706:59:387
3148772994038,2cyclictest3784064-21kworker/u16:1+events_unbound12:20:234
3148772994038,2cyclictest3784064-21kworker/u16:1+events_unbound11:51:324
3148772994038,2cyclictest3648827-21kworker/u16:0+events_unbound11:03:044
3148772993937,2cyclictest3784064-21kworker/u16:1+events_unbound11:58:124
3148772993937,2cyclictest3648827-21kworker/u16:0+events_unbound10:55:564
3148772993937,2cyclictest3648827-21kworker/u16:0+events_unbound10:55:564
3148772993937,2cyclictest3540197-21kworker/u16:4+events_unbound11:12:364
3148772993937,2cyclictest3404717-21kworker/u16:2+events_unbound11:08:284
3148772993937,2cyclictest3404717-21kworker/u16:2+events_unbound09:52:354
3148772993937,2cyclictest3404717-21kworker/u16:2+events_unbound09:19:174
3148772993836,2cyclictest3540197-21kworker/u16:4+events_unbound10:41:164
3148772993836,2cyclictest3404717-21kworker/u16:2+events_unbound10:38:114
3148772993836,2cyclictest3404717-21kworker/u16:2+events_unbound09:32:254
3148772993836,2cyclictest3354879-21kworker/u16:1+events_unbound10:50:084
3148772993835,2cyclictest3709512-21kworker/u16:2+events_unbound12:05:484
3148776993735,2cyclictest3709512-21kworker/u16:2+flush-8:012:04:435
3148772993735,2cyclictest3722951-21kworker/u16:1+events_unbound11:40:514
3148772993735,2cyclictest3540197-21kworker/u16:4+events_unbound10:21:114
3148772993735,2cyclictest3404717-21kworker/u16:2+events_unbound10:15:444
3148772993735,2cyclictest3404717-21kworker/u16:2+events_unbound10:15:444
3148772993735,2cyclictest3404717-21kworker/u16:2+events_unbound09:10:324
3148772993735,2cyclictest3354879-21kworker/u16:1+events_unbound10:03:474
3148772993735,2cyclictest3354879-21kworker/u16:1+events_unbound09:43:204
3148772993735,2cyclictest3287338-21kworker/u16:4+events_unbound09:08:054
3148772993734,2cyclictest3540197-21kworker/u16:4+flush-8:011:14:324
3148776993634,2cyclictest3354879-21kworker/u16:1+flush-8:009:05:005
3148772993634,2cyclictest3784064-21kworker/u16:1+events_unbound12:16:194
3148772993634,2cyclictest3784064-21kworker/u16:1+events_unbound12:16:194
3148772993634,2cyclictest3722951-21kworker/u16:1+events_unbound11:37:164
3148772993634,2cyclictest3709512-21kworker/u16:2+events_unbound12:13:194
3148772993634,2cyclictest3540197-21kworker/u16:4+events_unbound11:20:594
3148772993634,2cyclictest3540197-21kworker/u16:4+events_unbound10:46:134
3148781993530,4cyclictest3407471-21latency_hist09:14:237
3148778993431,3cyclictest3685414-21kworker/u16:3+events_unbound11:14:416
3148772993432,2cyclictest3767899-21kworker/u16:0+events_unbound12:26:404
3148772993432,2cyclictest3738567-21kworker/u16:3+events_unbound11:49:154
3148781993328,4cyclictest3540154-21latency_hist10:09:227
3148778993331,2cyclictest3784064-21kworker/u16:1+flush-8:012:29:376
3148778993331,2cyclictest3404717-21kworker/u16:2+events_unbound10:09:396
3148778993330,2cyclictest3404717-21kworker/u16:2+flush-8:009:59:286
3148778993330,2cyclictest3404717-21kworker/u16:2+flush-8:009:34:286
3148781993129,1cyclictest3794049-21ssh11:54:287
3148778993027,2cyclictest3709512-21kworker/u16:2+flush-8:012:29:226
3148778993027,2cyclictest3709512-21kworker/u16:2+flush-8:011:34:276
3148776993028,2cyclictest3354879-21kworker/u16:1+flush-8:009:49:455
3148781992928,0cyclictest0-21swapper/710:09:537
3148781992924,4cyclictest3745412-21latency_hist11:34:227
3148781992924,4cyclictest3745412-21latency_hist11:34:227
3148778992927,2cyclictest3354879-21kworker/u16:1+events_unbound09:44:426
3148776992925,3cyclictest3221609-21grep07:39:405
3148772992927,2cyclictest3200211-21kworker/u16:0+events_unbound07:54:464
3148772992926,2cyclictest3248698-21kworker/u16:2+events_unbound08:39:254
314878199280,26cyclictest0-21swapper/712:19:457
3148778992826,2cyclictest3287338-21kworker/u16:4+flush-8:008:19:176
3148776992826,2cyclictest3443742-21kworker/u16:3+events_unbound09:54:445
3148776992825,2cyclictest3540197-21kworker/u16:4+flush-8:010:30:035
3148772992826,2cyclictest3248698-21kworker/u16:2+events_unbound08:06:044
3148772992725,2cyclictest3200211-21kworker/u16:0+events_unbound07:49:204
3148772992724,2cyclictest3248698-21kworker/u16:2+events_unbound08:44:244
3148781992625,1cyclictest3383350-21diskmemload12:00:147
3148781992625,0cyclictest0-21swapper/707:09:287
3148778992624,2cyclictest3404717-21kworker/u16:2+flush-8:011:00:246
3148772992624,2cyclictest3287338-21kworker/u16:4+events_unbound08:25:294
3148772992624,2cyclictest3248698-21kworker/u16:2+events_unbound08:35:294
3148772992624,2cyclictest3101881-21kworker/u16:4+events_unbound07:09:204
3148778992523,2cyclictest3722951-21kworker/u16:1+events_unbound11:39:506
3148778992523,2cyclictest3404717-21kworker/u16:2+flush-8:009:19:486
3148778992522,2cyclictest2413445-21kworker/u16:1+flush-8:007:04:446
3148778992422,2cyclictest3767899-21kworker/u16:0+flush-8:012:24:176
3148772992422,2cyclictest3354879-21kworker/u16:1+events_unbound08:57:034
3148781992317,5cyclictest3829736-21latency_hist12:09:217
3148778992321,2cyclictest3540197-21kworker/u16:4+events_unbound10:39:416
3148778992321,2cyclictest3443742-21kworker/u16:3+flush-8:010:05:196
3148778992321,2cyclictest3404717-21kworker/u16:2+flush-8:009:40:246
3148778992320,2cyclictest3767899-21kworker/u16:0+flush-8:012:09:396
3148778992320,2cyclictest3709512-21kworker/u16:2+flush-8:011:29:276
3148778992320,2cyclictest3709512-21kworker/u16:2+flush-8:011:29:276
3148776992321,2cyclictest3767899-21kworker/u16:0+events_unbound11:59:365
3148776992321,2cyclictest3354879-21kworker/u16:1+flush-8:010:04:525
3148776992320,2cyclictest3200211-21kworker/u16:0+events_unbound07:44:465
3148776992319,3cyclictest3354879-21kworker/u16:1+events_unbound09:24:425
3148772992321,2cyclictest3101881-21kworker/u16:4+events_unbound07:29:534
3148772992321,2cyclictest2413445-21kworker/u16:1+events_unbound07:18:334
3148781992221,0cyclictest0-21swapper/707:15:277
3148781992220,1cyclictest3383350-21diskmemload10:14:347
3148781992220,1cyclictest3383350-21diskmemload10:14:347
3148781992220,1cyclictest0-21swapper/708:54:487
3148781992217,4cyclictest3889948-21latency_hist12:34:227
3148778992220,2cyclictest3369413-21kworker/u16:0+events_unbound08:59:356
3148778992220,2cyclictest3248698-21kworker/u16:2+events_unbound08:39:456
3148778992220,2cyclictest3211753-21kworker/u16:1+flush-8:007:39:186
3148772992220,2cyclictest3287338-21kworker/u16:4+events_unbound08:32:514
3148781992121,0cyclictest0-21swapper/707:28:277
3148781992121,0cyclictest0-21swapper/707:28:277
3148781992120,0cyclictest0-21swapper/708:59:237
3148781992120,0cyclictest0-21swapper/708:12:437
3148778992119,2cyclictest3540197-21kworker/u16:4+events_unbound10:26:276
3148776992119,2cyclictest3767899-21kworker/u16:0+events_unbound12:09:445
3148776992119,2cyclictest3709512-21kworker/u16:2+flush-8:011:24:405
3148776992119,2cyclictest3404717-21kworker/u16:2+events_unbound10:14:515
3148776992119,2cyclictest3404717-21kworker/u16:2+events_unbound10:14:515
3148781992020,0cyclictest0-21swapper/708:15:357
3148781992019,0cyclictest0-21swapper/708:41:157
3148781992019,0cyclictest0-21swapper/708:19:467
3148781992019,0cyclictest0-21swapper/707:06:347
3148781992018,1cyclictest3759642-21ssh11:39:407
3148778992018,2cyclictest3369413-21kworker/u16:0+flush-8:009:19:176
3148776992018,2cyclictest3443742-21kworker/u16:3+events_unbound09:29:375
3148776992018,2cyclictest3404717-21kworker/u16:2+events_unbound10:34:345
3148772992018,2cyclictest3211753-21kworker/u16:1+events_unbound07:37:194
3148781991919,0cyclictest0-21swapper/707:45:277
3148781991918,0cyclictest0-21swapper/709:14:347
3148781991918,0cyclictest0-21swapper/708:37:427
3148781991916,2cyclictest124-21kswapd010:49:217
3148778991917,2cyclictest3709512-21kworker/u16:2+events_unbound11:24:456
3148778991917,2cyclictest3404717-21kworker/u16:2+flush-8:010:49:176
3148778991917,2cyclictest3354879-21kworker/u16:1+events_unbound09:24:506
3148776991917,2cyclictest3540197-21kworker/u16:4+flush-8:010:39:475
3148776991917,2cyclictest3248698-21kworker/u16:2+flush-8:008:39:555
3148776991917,2cyclictest3248698-21kworker/u16:2+events_unbound08:49:475
3148776991916,2cyclictest3354879-21kworker/u16:1+flush-8:010:19:325
3148772991917,2cyclictest3248698-21kworker/u16:2+events_unbound08:52:354
3148772991917,2cyclictest3181260-21kworker/u16:2+events_unbound07:26:264
3148772991917,2cyclictest3181260-21kworker/u16:2+events_unbound07:26:264
314878199188,8cyclictest0-21swapper/711:04:427
3148781991818,0cyclictest0-21swapper/708:01:297
3148778991816,2cyclictest3784064-21kworker/u16:1+events_unbound11:55:246
3148778991816,2cyclictest3101881-21kworker/u16:4+flush-8:007:24:376
3148778991816,2cyclictest3101881-21kworker/u16:4+flush-8:007:24:376
3148776991815,3cyclictest3685414-21kworker/u16:3+flush-8:011:09:485
3148772991816,2cyclictest3354879-21kworker/u16:1+events_unbound08:59:494
3148772991816,2cyclictest3200211-21kworker/u16:0+events_unbound08:02:254
35033312170,1chrt3503330-21ssh09:53:107
314878199178,8cyclictest0-21swapper/710:29:417
314878199178,7cyclictest0-21swapper/711:14:447
3148781991717,0cyclictest0-21swapper/711:20:047
3148781991717,0cyclictest0-21swapper/710:54:407
3148781991717,0cyclictest0-21swapper/710:54:407
3148781991713,3cyclictest1267-21snmpd08:26:257
314878199170,16cyclictest1267-21snmpd09:27:037
3148778991715,2cyclictest3767899-21kworker/u16:0+events_unbound12:02:406
3148778991715,2cyclictest3369413-21kworker/u16:0+flush-8:009:05:206
3148778991715,2cyclictest3354879-21kworker/u16:1+events_unbound09:49:516
3148778991713,3cyclictest3188958-21cut07:19:426
3148772991715,2cyclictest3200211-21kworker/u16:0+events_unbound07:39:394
314878199168,7cyclictest0-21swapper/709:04:417
3148781991615,0cyclictest0-21swapper/709:39:357
3148781991615,0cyclictest0-21swapper/708:46:437
3148781991615,0cyclictest0-21swapper/708:05:087
3148781991615,0cyclictest0-21swapper/707:19:277
3148778991613,2cyclictest3287338-21kworker/u16:4+flush-8:009:09:286
3148776991614,2cyclictest3540197-21kworker/u16:4+events_unbound10:59:445
3148776991614,2cyclictest3404717-21kworker/u16:2+events_unbound09:59:495
3148772991614,2cyclictest2413445-21kworker/u16:1+events_unbound07:11:374
314878199157,7cyclictest0-21swapper/711:34:397
3148781991515,0cyclictest0-21swapper/707:42:357
3148781991514,0cyclictest0-21swapper/708:50:267
3148781991510,4cyclictest3876476-21sh12:26:417
314878199150,14cyclictest0-21swapper/707:34:467
3148778991513,2cyclictest3784064-21kworker/u16:1+flush-8:012:15:096
3148778991513,2cyclictest3784064-21kworker/u16:1+flush-8:012:15:096
3148778991513,2cyclictest3767899-21kworker/u16:0+events_unbound12:09:196
3148778991513,2cyclictest3354879-21kworker/u16:1+events_unbound08:54:386
3148776991513,2cyclictest3709512-21kworker/u16:2+flush-8:012:19:495
3148776991513,1cyclictest0-21swapper/507:49:385
314878199147,6cyclictest0-21swapper/710:44:097
314878199146,7cyclictest0-21swapper/712:14:397
314878199146,7cyclictest0-21swapper/712:14:397
314878199146,7cyclictest0-21swapper/712:09:367
314878199146,7cyclictest0-21swapper/710:49:387
314878199146,7cyclictest0-21swapper/709:44:337
314878199146,7cyclictest0-21swapper/709:33:467
314878199145,8cyclictest0-21swapper/711:45:397
314878199145,8cyclictest0-21swapper/710:24:477
3148781991412,1cyclictest3696617-21ssh11:13:357
3148778991412,2cyclictest3648827-21kworker/u16:0+events_unbound10:54:456
3148778991412,2cyclictest3648827-21kworker/u16:0+events_unbound10:54:456
3148778991411,2cyclictest3354879-21kworker/u16:1+events_unbound10:49:506
314877899140,1cyclictest0-21swapper/609:31:586
3148776991413,1cyclictest3784064-21kworker/u16:1+events_unbound11:54:455
3148776991412,2cyclictest3248698-21kworker/u16:2+events_unbound08:34:445
314878199139,3cyclictest3516838-21ssh09:59:357
314878199136,6cyclictest0-21swapper/709:54:317
314878199136,6cyclictest0-21swapper/707:56:037
314878199135,7cyclictest0-21swapper/710:34:467
314878199135,7cyclictest0-21swapper/710:19:387
314878199135,7cyclictest0-21swapper/709:19:397
3148781991312,0cyclictest0-21swapper/708:32:397
3148778991312,1cyclictest0-21swapper/611:11:186
3148778991311,2cyclictest3540197-21kworker/u16:4+events_unbound10:31:326
314877899130,13cyclictest0-21swapper/610:35:026
314877699138,4cyclictest3843051-21cat12:14:365
314877699138,4cyclictest3843051-21cat12:14:365
3148776991312,1cyclictest0-21swapper/510:11:055
3148776991311,2cyclictest3404717-21kworker/u16:2+flush-8:010:54:175
314877699130,13cyclictest0-21swapper/510:44:495
3148772991311,2cyclictest3229618-21kworker/u16:3+events_unbound08:21:564
3148772991311,2cyclictest3229618-21kworker/u16:3+events_unbound07:53:124
3148778991211,1cyclictest0-21swapper/611:51:116
3148778991211,1cyclictest0-21swapper/611:48:496
3148778991210,2cyclictest3540197-21kworker/u16:4+events_unbound11:22:156
3148778991210,2cyclictest3354879-21kworker/u16:1+events_unbound10:21:366
3148778991210,2cyclictest3200211-21kworker/u16:0+flush-8:008:04:486
314877699128,3cyclictest3191961-21cat07:24:385
314877699128,3cyclictest3191961-21cat07:24:385
3148776991211,1cyclictest0-21swapper/511:45:505
3148776991211,1cyclictest0-21swapper/511:19:495
3148776991211,1cyclictest0-21swapper/509:19:225
3148776991210,2cyclictest3404717-21kworker/u16:2+flush-8:009:34:545
314877699120,12cyclictest0-21swapper/508:47:035
3148772991210,2cyclictest3101881-21kworker/u16:4+events_unbound07:21:394
314878199110,9cyclictest3240301-21irqcore07:49:387
314877899119,2cyclictest2413445-21kworker/u16:1+events_unbound07:09:346
314877899110,11cyclictest0-21swapper/608:30:106
314877699119,2cyclictest3404717-21kworker/u16:2+events_unbound11:04:455
314877699116,4cyclictest3746688-21cat11:34:365
3148776991110,1cyclictest0-21swapper/511:30:235
3148776991110,1cyclictest0-21swapper/511:30:235
3148776991110,1cyclictest0-21swapper/510:56:295
3148776991110,1cyclictest0-21swapper/510:56:295
3148776991110,1cyclictest0-21swapper/509:23:195
3148776991110,1cyclictest0-21swapper/509:11:205
3148776991110,1cyclictest0-21swapper/508:29:055
3148776991110,1cyclictest0-21swapper/508:18:035
3148776991110,1cyclictest0-21swapper/507:13:155
314877699110,1cyclictest0-21swapper/508:31:175
314877699110,1cyclictest0-21swapper/507:18:175
314877699110,11cyclictest0-21swapper/508:11:255
314877699110,11cyclictest0-21swapper/507:23:205
314877899109,1cyclictest0-21swapper/608:19:276
314877899108,2cyclictest3248698-21kworker/u16:2+flush-8:008:49:466
314877899108,2cyclictest3248698-21kworker/u16:2+flush-8:008:09:486
314877699109,1cyclictest0-21swapper/512:32:495
314877699109,1cyclictest0-21swapper/509:40:305
314877699109,1cyclictest0-21swapper/508:55:055
314877699109,1cyclictest0-21swapper/508:08:545
314877699109,1cyclictest0-21swapper/507:58:395
314877699106,3cyclictest0-21swapper/507:59:415
314877699105,4cyclictest3866919-21tune2fs12:24:365
314877299108,2cyclictest3248698-21kworker/u16:2+events_unbound08:15:474
31487789998,1cyclictest0-21swapper/608:01:006
31487789998,1cyclictest0-21swapper/607:58:396
31487789997,2cyclictest3404717-21kworker/u16:2+events_unbound09:59:046
31487789997,2cyclictest3101881-21kworker/u16:4+flush-8:007:14:466
31487789995,3cyclictest3334253-21ntpq08:34:446
31487769998,1cyclictest0-21swapper/509:48:045
31487769997,2cyclictest3101881-21kworker/u16:4+flush-8:007:29:485
31487769997,2cyclictest3101881-21kworker/u16:4+flush-8:007:04:425
31487769994,4cyclictest5881-21gsd-print-notif07:34:315
31487729997,2cyclictest3200211-21kworker/u16:0+events_unbound08:09:354
31487789986,1cyclictest0-21swapper/607:44:396
31487789986,1cyclictest0-21swapper/607:29:406
31487789984,3cyclictest3351944-21cut08:44:416
31487769987,1cyclictest0-21swapper/511:43:185
31487769986,1cyclictest0-21swapper/510:24:415
31487769983,4cyclictest3376409-21cut08:59:405
31487769983,4cyclictest3304784-21cut08:19:425
31487789975,2cyclictest3200211-21kworker/u16:0+flush-8:007:39:406
31487789973,3cyclictest3310411-21kthreadcore08:24:426
31487789973,3cyclictest3242346-21grep07:49:396
31487769972,4cyclictest3698473-21sed11:14:385
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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