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2026-04-08 - 15:21
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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 376 highest latencies:
System rack0slot2.osadl.org (updated Wed Apr 08, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
391344926454,7sleep60-21swapper/607:01:236
3913786995654,2cyclictest4022781-21kworker/u16:0+events_unbound08:09:425
3913788995249,2cyclictest122214-21kworker/u16:3+flush-8:010:47:366
3913786995149,2cyclictest360799-21kworker/u16:2+events_unbound12:17:405
3913786995149,2cyclictest14315-21kworker/u16:1+events_unbound10:27:415
3913786994745,2cyclictest360799-21kworker/u16:2+events_unbound12:22:435
3913786994745,2cyclictest263893-21kworker/u16:3+events_unbound11:12:385
3913786994644,2cyclictest263893-21kworker/u16:3+events_unbound11:22:425
3913786994644,2cyclictest217789-21kworker/u16:0+flush-8:010:52:395
391343824636,7sleep40-21swapper/407:01:134
3913792994438,5cyclictest158173-21latency_hist10:27:107
3913786994442,2cyclictest348012-21kworker/u16:1+events_unbound11:48:125
3913786994442,2cyclictest348012-21kworker/u16:1+events_unbound11:48:125
3913786994442,2cyclictest122214-21kworker/u16:3+events_unbound10:47:415
391334324434,7sleep50-21swapper/506:59:535
3913786994341,2cyclictest37633-21kworker/u16:2+events_unbound10:44:575
3913786994341,2cyclictest360799-21kworker/u16:2+events_unbound11:56:405
3913786994341,2cyclictest182569-21kworker/u16:4+events_unbound10:41:125
391379299420,40cyclictest242227-21latency_hist11:02:117
3913786994240,2cyclictest433991-21kworker/u16:0+events_unbound12:30:055
3913786994139,2cyclictest325489-21kworker/u16:0+events_unbound11:42:405
3913786994139,2cyclictest182569-21kworker/u16:4+events_unbound12:14:055
3913786994038,2cyclictest360799-21kworker/u16:2+flush-8:012:07:365
3913781994038,2cyclictest3894835-21kworker/u16:3+events_unbound07:02:254
39132132404,31sleep70-21swapper/706:58:037
3913786993836,2cyclictest4168910-21kworker/u16:4+events_unbound09:31:085
3913786993836,2cyclictest360799-21kworker/u16:2+events_unbound12:03:445
3913786993836,2cyclictest263892-21kworker/u16:2+events_unbound11:21:335
3913792993731,5cyclictest4099325-21latency_hist08:37:117
3913786993735,2cyclictest59581-21kworker/u16:4+events_unbound10:03:485
3913786993735,2cyclictest59581-21kworker/u16:4+events_unbound09:50:005
3913786993735,2cyclictest59581-21kworker/u16:4+events_unbound09:50:005
3913786993735,2cyclictest2443238-21kworker/u16:2+events_unbound07:22:355
3913786993735,2cyclictest217789-21kworker/u16:0+events_unbound11:05:415
3913786993634,2cyclictest182569-21kworker/u16:4+flush-8:011:37:455
3913792993534,0cyclictest0-21swapper/707:57:247
3913786993533,2cyclictest37633-21kworker/u16:2+events_unbound10:26:425
3913786993533,2cyclictest182569-21kworker/u16:4+events_unbound11:28:265
3913792993433,0cyclictest0-21swapper/707:37:247
3913786993432,2cyclictest4109280-21kworker/u16:2+events_unbound09:21:265
3913786993432,2cyclictest3994343-21kworker/u16:1+events_unbound08:50:125
3913786993432,2cyclictest263893-21kworker/u16:3+events_unbound11:10:235
3913786993432,2cyclictest263893-21kworker/u16:3+events_unbound11:10:235
3913786993432,2cyclictest14315-21kworker/u16:1+events_unbound10:20:195
3913786993432,2cyclictest119854-21kworker/u16:0+events_unbound10:16:525
3913792993332,0cyclictest0-21swapper/710:17:257
3913786993331,2cyclictest59581-21kworker/u16:4+events_unbound09:45:205
3913786993331,2cyclictest4109280-21kworker/u16:2+events_unbound09:23:055
3913786993331,2cyclictest263893-21kworker/u16:3+events_unbound11:32:345
3913786993331,2cyclictest119854-21kworker/u16:0+events_unbound10:33:465
3913781993331,2cyclictest4128227-21kworker/u16:3+events_unbound08:52:264
3913792993231,0cyclictest0-21swapper/709:47:297
3913792993231,0cyclictest0-21swapper/709:47:297
3913792993226,5cyclictest650-21systemd-journal12:22:117
3913786993230,2cyclictest4128227-21kworker/u16:3+events_unbound09:13:435
3913786993230,2cyclictest4128227-21kworker/u16:3+events_unbound09:10:555
3913786993230,2cyclictest4128227-21kworker/u16:3+events_unbound09:10:555
3913786993230,2cyclictest3994343-21kworker/u16:1+events_unbound09:06:485
3913786993230,2cyclictest360799-21kworker/u16:2+events_unbound11:57:175
3913792993130,0cyclictest0-21swapper/709:22:267
3913786993129,2cyclictest4022781-21kworker/u16:0+events_unbound08:28:225
3913786993129,2cyclictest3994343-21kworker/u16:1+flush-8:008:22:335
3913786993129,2cyclictest37633-21kworker/u16:2+flush-8:009:41:265
3913786993129,2cyclictest37633-21kworker/u16:2+events_unbound10:00:275
3913786993129,2cyclictest182569-21kworker/u16:4+events_unbound10:58:395
3913786993129,2cyclictest14315-21kworker/u16:1+events_unbound09:53:395
3913786993129,2cyclictest14315-21kworker/u16:1+events_unbound09:36:275
3913781993129,2cyclictest4182384-21kworker/u16:0+events_unbound09:37:254
3913786993028,2cyclictest3936974-21kworker/u16:4+events_unbound07:51:225
3913786993028,2cyclictest3936974-21kworker/u16:4+events_unbound07:38:565
3913786993028,2cyclictest37633-21kworker/u16:2+events_unbound10:10:355
3913786992927,2cyclictest3884084-21kworker/u16:1+events_unbound07:07:025
3913786992927,2cyclictest2443238-21kworker/u16:2+events_unbound08:01:225
3913781992927,2cyclictest37633-21kworker/u16:2+events_unbound09:57:254
3913786992826,2cyclictest3936974-21kworker/u16:4+events_unbound07:31:225
3913781992826,2cyclictest2443238-21kworker/u16:2+events_unbound07:47:244
3913781992826,2cyclictest2443238-21kworker/u16:2+events_unbound07:17:244
3913792992726,0cyclictest0-21swapper/708:47:377
3913786992725,2cyclictest4040891-21kworker/u16:3+events_unbound08:21:225
3913781992725,2cyclictest360799-21kworker/u16:2+events_unbound12:22:064
3913781992725,2cyclictest14315-21kworker/u16:1+events_unbound10:12:284
3913792992625,0cyclictest0-21swapper/709:02:267
3913792992624,1cyclictest4147227-21diskmemload09:42:387
3913786992624,2cyclictest4109280-21kworker/u16:2+events_unbound08:45:565
3913786992623,2cyclictest4080230-21kworker/u16:4+flush-8:008:37:115
3913781992624,2cyclictest4168910-21kworker/u16:4+events_unbound09:27:354
3913781992624,2cyclictest4040891-21kworker/u16:3+events_unbound08:07:244
3913781992624,2cyclictest3894835-21kworker/u16:3+events_unbound07:22:254
3913786992523,2cyclictest4128227-21kworker/u16:3+events_unbound08:58:245
3913786992523,2cyclictest4109280-21kworker/u16:2+events_unbound08:56:095
3913786992523,2cyclictest4022781-21kworker/u16:0+events_unbound08:03:255
3913786992523,2cyclictest3894835-21kworker/u16:3+events_unbound07:09:215
3913792992418,5cyclictest4022846-21latency_hist07:57:117
3913786992422,2cyclictest4040891-21kworker/u16:3+events_unbound08:15:175
3913786992422,2cyclictest3894835-21kworker/u16:3+events_unbound07:35:425
3913786992422,2cyclictest3894835-21kworker/u16:3+events_unbound07:19:525
3913781992422,2cyclictest4109280-21kworker/u16:2+flush-8:009:22:064
3913792992323,0cyclictest0-21swapper/711:32:067
3913786992321,2cyclictest4022781-21kworker/u16:0+events_unbound08:37:575
3913786992321,2cyclictest2443238-21kworker/u16:2+flush-8:007:47:115
3913786992321,2cyclictest2443238-21kworker/u16:2+flush-8:007:47:115
3913786992321,2cyclictest2443238-21kworker/u16:2+events_unbound07:57:105
3913781992321,2cyclictest3894835-21kworker/u16:3+events_unbound07:12:334
3913781992321,2cyclictest37633-21kworker/u16:2+events_unbound09:47:354
3913781992321,2cyclictest37633-21kworker/u16:2+events_unbound09:47:354
3913781992321,2cyclictest182569-21kworker/u16:4+events_unbound11:37:294
3913781992321,2cyclictest182569-21kworker/u16:4+events_unbound11:21:374
3913781992321,2cyclictest14315-21kworker/u16:1+events_unbound10:07:254
3913792992222,0cyclictest0-21swapper/709:37:067
391379299220,21cyclictest266183-21latency_hist11:12:117
391379299220,21cyclictest266183-21latency_hist11:12:117
3913781992220,2cyclictest4128227-21kworker/u16:3+events_unbound09:10:254
3913781992220,2cyclictest4128227-21kworker/u16:3+events_unbound09:10:254
3913781992220,2cyclictest182569-21kworker/u16:4+events_unbound11:15:204
3913792992119,1cyclictest0-21swapper/707:07:287
3913792992116,4cyclictest650-21systemd-journal11:07:107
3913781992119,2cyclictest4022781-21kworker/u16:0+events_unbound09:05:524
3913781992119,2cyclictest3894835-21kworker/u16:3+flush-8:007:42:064
3913781992119,2cyclictest182569-21kworker/u16:4+events_unbound11:03:254
3913781992119,2cyclictest14315-21kworker/u16:1+events_unbound10:30:564
3913781992119,2cyclictest119854-21kworker/u16:0+flush-8:010:33:044
3913781992116,2cyclictest263893-21kworker/u16:3+events_unbound11:25:534
3913792992015,4cyclictest398108-21latency_hist12:07:117
3913788992018,2cyclictest4182384-21kworker/u16:0+flush-8:009:37:376
3913788992014,5cyclictest325489-21kworker/u16:0+flush-8:011:47:116
3913788992014,5cyclictest325489-21kworker/u16:0+flush-8:011:47:116
3913781992018,2cyclictest4182384-21kworker/u16:0+events_unbound09:25:014
3913781992018,2cyclictest360799-21kworker/u16:2+events_unbound12:27:334
3913781992018,2cyclictest360799-21kworker/u16:2+events_unbound12:12:594
3913781992018,2cyclictest230280-21kworker/u16:1+events_unbound11:00:374
3913781992018,2cyclictest14315-21kworker/u16:1+events_unbound09:43:014
3913792991918,1cyclictest4147227-21diskmemload10:09:407
3913792991910,7cyclictest47023-21ssh09:37:387
3913786991917,2cyclictest3936760-21kworker/u16:0+events_unbound07:13:455
3913781991917,2cyclictest4168910-21kworker/u16:4+events_unbound09:32:304
3913781991917,2cyclictest386190-21kworker/u16:3+events_unbound12:03:054
3913781991917,2cyclictest360799-21kworker/u16:2+events_unbound12:22:324
3913781991917,2cyclictest263893-21kworker/u16:3+events_unbound11:08:284
3913781991917,2cyclictest263893-21kworker/u16:3+events_unbound11:08:284
3913781991917,2cyclictest182569-21kworker/u16:4+events_unbound10:54:124
3913792991817,1cyclictest4147227-21diskmemload12:01:457
3913792991817,0cyclictest0-21swapper/708:42:307
3913792991815,2cyclictest320225-21kthreadcore11:32:327
3913792991811,6cyclictest0-21swapper/712:27:287
3913781991816,2cyclictest4168910-21kworker/u16:4+events_unbound09:15:574
3913781991816,2cyclictest348012-21kworker/u16:1+events_unbound11:55:124
3913781991816,2cyclictest263892-21kworker/u16:2+events_unbound11:34:514
3913781991816,2cyclictest122214-21kworker/u16:3+events_unbound10:50:294
3913781991816,2cyclictest122214-21kworker/u16:3+events_unbound10:45:404
391379299178,8cyclictest0-21swapper/709:17:287
3913792991716,1cyclictest4147227-21diskmemload09:28:537
3913792991715,1cyclictest445209-21ssh12:25:417
3913792991715,1cyclictest4163443-21ssh09:07:297
3913792991715,1cyclictest4163443-21ssh09:07:297
3913792991715,1cyclictest401670-21kthreadcore12:07:297
3913792991715,1cyclictest290709-21awk11:22:227
3913792991714,2cyclictest1267-21snmpd09:12:147
3913792991713,3cyclictest124-21kswapd010:52:117
3913792991711,5cyclictest650-21systemd-journal07:24:117
391379299170,15cyclictest1267-21snmpd10:43:137
3913788991715,2cyclictest14315-21kworker/u16:1+events_unbound09:47:256
3913788991715,2cyclictest14315-21kworker/u16:1+events_unbound09:47:256
3913781991715,2cyclictest4022781-21kworker/u16:0+events_unbound08:42:364
3913781991715,2cyclictest182569-21kworker/u16:4+events_unbound12:01:214
3913781991712,4cyclictest4027264-21cut07:57:284
3913792991616,0cyclictest0-21swapper/710:55:127
3913792991615,0cyclictest0-21swapper/708:57:317
3913792991612,3cyclictest1267-21snmpd07:21:187
3913788991610,1cyclictest0-21swapper/608:12:276
3913781991614,2cyclictest59581-21kworker/u16:4+events_unbound10:02:304
3913781991614,2cyclictest4022781-21kworker/u16:0+events_unbound08:17:284
3913781991614,2cyclictest2443238-21kworker/u16:2+events_unbound08:14:574
3913781991614,2cyclictest182569-21kworker/u16:4+events_unbound11:28:494
3913781991614,2cyclictest14315-21kworker/u16:1+events_unbound09:56:444
3913781991614,2cyclictest119854-21kworker/u16:0+events_unbound10:40:334
391378199160,16cyclictest0-21swapper/408:47:334
391379299158,6cyclictest0-21swapper/711:42:387
391379299156,8cyclictest0-21swapper/710:12:307
3913792991515,0cyclictest0-21swapper/710:31:127
3913792991514,0cyclictest0-21swapper/711:47:257
3913792991514,0cyclictest0-21swapper/711:47:257
3913792991514,0cyclictest0-21swapper/708:17:397
3913792991513,1cyclictest4147227-21diskmemload11:38:047
3913792991512,2cyclictest0-21swapper/710:32:367
3913792991512,2cyclictest0-21swapper/707:27:127
3913788991514,1cyclictest0-21swapper/607:42:306
3913788991514,1cyclictest0-21swapper/607:42:306
3913788991512,1cyclictest0-21swapper/612:10:506
3913788991510,2cyclictest14315-21kworker/u16:1+flush-8:010:02:116
3913781991513,2cyclictest4080230-21kworker/u16:4+flush-8:008:32:334
3913781991513,2cyclictest3936974-21kworker/u16:4+events_unbound07:27:534
3913781991513,2cyclictest37633-21kworker/u16:2+events_unbound10:19:584
3913781991513,2cyclictest360799-21kworker/u16:2+events_unbound12:08:204
3913781991513,2cyclictest263892-21kworker/u16:2+events_unbound11:43:114
391379299146,7cyclictest0-21swapper/710:02:557
3913792991413,1cyclictest4147227-21diskmemload11:53:407
3913792991413,0cyclictest96-21ksoftirqd/712:12:557
3913792991413,0cyclictest0-21swapper/707:02:317
391379299140,13cyclictest0-21swapper/707:42:347
391379299140,13cyclictest0-21swapper/707:42:347
3913788991413,1cyclictest0-21swapper/611:30:566
3913788991413,1cyclictest0-21swapper/609:30:206
391378899140,14cyclictest0-21swapper/610:03:086
391378899140,13cyclictest0-21swapper/609:12:366
3913781991412,2cyclictest3994343-21kworker/u16:1+events_unbound08:25:224
3913781991412,2cyclictest2443238-21kworker/u16:2+events_unbound07:09:584
3913781991412,2cyclictest14315-21kworker/u16:1+events_unbound10:26:324
391379299139,3cyclictest1267-21snmpd08:26:317
391379299138,4cyclictest6184-21gvfs-afc-volume08:07:237
391379299136,6cyclictest0-21swapper/711:18:037
391379299136,6cyclictest0-21swapper/711:14:177
391379299136,6cyclictest0-21swapper/709:57:217
391379299135,7cyclictest0-21swapper/709:55:387
391379299134,8cyclictest0-21swapper/710:40:437
391378899139,3cyclictest14315-21kworker/u16:1+flush-8:010:13:086
3913788991312,1cyclictest0-21swapper/612:26:076
3913788991312,1cyclictest0-21swapper/611:44:206
3913788991312,1cyclictest0-21swapper/611:05:436
3913788991312,1cyclictest0-21swapper/610:30:156
3913788991312,1cyclictest0-21swapper/610:23:566
3913788991312,1cyclictest0-21swapper/609:24:116
3913788991312,1cyclictest0-21swapper/609:10:006
3913788991312,1cyclictest0-21swapper/609:10:006
3913788991310,2cyclictest182569-21kworker/u16:4+flush-8:011:27:106
391378899130,13cyclictest0-21swapper/611:55:326
391378899130,13cyclictest0-21swapper/609:54:566
3913781991312,1cyclictest0-21swapper/411:48:264
3913781991312,1cyclictest0-21swapper/411:48:264
391379299128,3cyclictest1267-21snmpd08:38:347
391379299128,3cyclictest1267-21snmpd08:02:367
391379299128,3cyclictest1267-21snmpd07:16:477
391379299126,5cyclictest4089745-21sshd-session08:31:547
391379299125,6cyclictest0-21swapper/708:13:527
3913788991211,1cyclictest0-21swapper/611:37:346
3913788991211,1cyclictest0-21swapper/610:21:536
3913788991211,1cyclictest0-21swapper/608:07:346
3913788991210,1cyclictest0-21swapper/607:12:256
391378899120,12cyclictest0-21swapper/610:58:376
391378899120,12cyclictest0-21swapper/610:53:536
391378899120,12cyclictest0-21swapper/609:44:416
391378899120,0cyclictest0-21swapper/609:04:006
3913781991210,2cyclictest4022781-21kworker/u16:0+events_unbound08:02:214
391379299118,2cyclictest1267-21snmpd07:47:187
3913792991111,0cyclictest0-21swapper/708:52:317
391379299110,9cyclictest0-21swapper/707:32:257
3913788991110,1cyclictest0-21swapper/612:04:126
3913788991110,1cyclictest0-21swapper/611:35:216
3913788991110,1cyclictest0-21swapper/611:17:136
3913788991110,1cyclictest0-21swapper/610:44:266
3913788991110,1cyclictest0-21swapper/610:39:426
3913788991110,1cyclictest0-21swapper/610:32:276
3913788991110,1cyclictest0-21swapper/609:18:026
3913788991110,1cyclictest0-21swapper/608:42:156
3913788991110,1cyclictest0-21swapper/607:55:356
3913788991110,1cyclictest0-21swapper/607:37:086
391378899110,1cyclictest0-21swapper/608:33:446
391378899110,11cyclictest0-21swapper/608:59:456
391378899110,11cyclictest0-21swapper/608:31:416
391378899110,11cyclictest0-21swapper/607:47:526
391378899110,11cyclictest0-21swapper/607:39:496
391378199119,2cyclictest4022781-21kworker/u16:0+events_unbound08:40:574
391378199119,2cyclictest2443238-21kworker/u16:2+events_unbound07:32:384
391378899109,1cyclictest0-21swapper/610:11:296
391378899109,1cyclictest0-21swapper/608:05:126
391378199108,2cyclictest3936974-21kworker/u16:4+events_unbound07:44:024
391378199108,2cyclictest3936974-21kworker/u16:4+events_unbound07:44:024
391378199107,2cyclictest4081805-21kthreadcore08:27:294
391378199100,1cyclictest0-21swapper/407:52:454
39137889998,1cyclictest0-21swapper/611:07:556
39137889998,1cyclictest0-21swapper/611:07:556
39137889998,1cyclictest0-21swapper/607:26:356
39137889998,1cyclictest0-21swapper/607:18:426
39137819996,2cyclictest4138042-21/usr/sbin/munin08:57:234
39137889987,1cyclictest0-21swapper/612:28:106
39137889987,1cyclictest0-21swapper/612:17:176
39137889987,1cyclictest0-21swapper/608:48:436
39137889984,3cyclictest4135755-21cut08:52:316
39137889983,4cyclictest4068846-21grep08:17:326
39137889983,4cyclictest4024031-21cat07:57:256
39137889983,4cyclictest3968810-21grep07:27:276
39137889983,4cyclictest3924456-21cat07:07:146
39137889983,4cyclictest26666-21tr09:32:226
39137889975,1cyclictest0-21swapper/608:37:226
39137889973,1cyclictest681rcuog/411:12:376
39137889972,4cyclictest4071886-21sed08:22:276
39137889972,4cyclictest3919209-21tr07:02:306
39137889970,6cyclictest386050-21chrt12:02:066
39137889960,3cyclictest0-21swapper/612:12:376
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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