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2026-07-13 - 23:23
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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 Mon Jul 13, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11910472960,1sleep50-21swapper/511:52:035
539652995752,4cyclictest852285-21latency_hist09:39:337
53907625342,8sleep40-21swapper/407:05:474
539652994845,2cyclictest904559-21munin-run09:59:337
539652994744,2cyclictest776561-21diskmemload09:22:047
53915224634,8sleep50-21swapper/507:06:535
539639994543,2cyclictest1092981-21kworker/u16:2+flush-8:011:24:334
539639994543,2cyclictest1030694-21kworker/u16:4+flush-8:011:29:334
5381872442,36sleep70-21swapper/707:05:027
539652994241,0cyclictest0-21swapper/711:37:087
539652994138,2cyclictest878202-21ssh09:49:167
539652994138,2cyclictest878202-21ssh09:49:167
539652994135,5cyclictest611344-21latency_hist07:44:337
539644994139,2cyclictest892618-21kworker/u16:0+events_unbound10:10:575
539644994139,2cyclictest1015594-21kworker/u16:1+events_unbound10:57:365
539644994038,2cyclictest878549-21kworker/u16:3+events_unbound09:53:165
539644994037,2cyclictest1229863-21kworker/u16:3+events_unbound12:19:565
539652993938,0cyclictest0-21swapper/711:11:487
539644993937,2cyclictest931561-21kworker/u16:1+events_unbound10:18:175
539644993937,2cyclictest800447-21kworker/u16:4+events_unbound09:37:055
539644993937,2cyclictest800447-21kworker/u16:4+events_unbound09:26:415
539644993937,2cyclictest799799-21kworker/u16:2+events_unbound09:55:465
539644993937,2cyclictest747793-21kworker/u16:3+events_unbound09:23:165
539644993937,2cyclictest1053092-21kworker/u16:0+events_unbound11:43:125
539644993937,2cyclictest1030694-21kworker/u16:4+events_unbound11:11:445
539644993937,2cyclictest1030694-21kworker/u16:4+events_unbound10:54:205
539639993937,2cyclictest892618-21kworker/u16:0+flush-8:009:59:284
539639993936,2cyclictest956042-21kworker/u16:3+flush-8:010:39:334
539652993836,1cyclictest1242092-21sh12:14:287
539644993836,2cyclictest800447-21kworker/u16:4+events_unbound10:03:415
539639993836,2cyclictest839722-21kworker/u16:0+events_unbound09:48:054
539639993836,2cyclictest839722-21kworker/u16:0+events_unbound09:48:054
539644993735,2cyclictest931561-21kworker/u16:1+events_unbound10:23:375
539644993735,2cyclictest800447-21kworker/u16:4+events_unbound09:48:175
539644993735,2cyclictest800447-21kworker/u16:4+events_unbound09:48:175
539644993735,2cyclictest800447-21kworker/u16:4+events_unbound09:43:245
539644993735,2cyclictest747793-21kworker/u16:3+events_unbound09:33:165
539644993735,2cyclictest1279429-21kworker/u16:0+events_unbound12:38:205
539644993735,2cyclictest1053092-21kworker/u16:0+events_unbound11:15:565
539644993735,2cyclictest1030694-21kworker/u16:4+events_unbound11:08:565
539644993634,2cyclictest956042-21kworker/u16:3+events_unbound10:40:325
539644993634,2cyclictest931561-21kworker/u16:1+events_unbound10:26:495
539644993634,2cyclictest931561-21kworker/u16:1+events_unbound10:26:495
539644993634,2cyclictest799799-21kworker/u16:2+events_unbound10:05:525
539644993634,2cyclictest747793-21kworker/u16:3+events_unbound09:19:165
539644993634,2cyclictest747793-21kworker/u16:3+events_unbound09:12:125
539644993634,2cyclictest1202380-21kworker/u16:0+events_unbound12:04:085
539644993634,2cyclictest1053092-21kworker/u16:0+events_unbound11:38:565
539644993634,2cyclictest1030694-21kworker/u16:4+events_unbound11:33:335
539639993635,1cyclictest956042-21kworker/u16:3+events_unbound10:32:004
539639993634,2cyclictest956042-21kworker/u16:3+events_unbound10:48:564
53916423624,8sleep60-21swapper/607:07:026
539648993533,2cyclictest1015594-21kworker/u16:1+events_unbound12:00:126
539644993533,2cyclictest1155157-21kworker/u16:2+events_unbound12:12:525
539644993533,2cyclictest1053092-21kworker/u16:0+events_unbound11:25:525
539644993533,2cyclictest1030694-21kworker/u16:4+events_unbound11:46:415
539644993533,2cyclictest1015594-21kworker/u16:1+flush-8:010:46:285
539639993533,2cyclictest813124-21kworker/u16:0+events_unbound09:24:364
539639993533,2cyclictest1155157-21kworker/u16:2+events_unbound12:17:084
539639993533,2cyclictest1015594-21kworker/u16:1+events_unbound10:57:204
539652993431,2cyclictest1040972-21ssh10:50:537
539644993432,2cyclictest892618-21kworker/u16:0+events_unbound10:39:125
539644993432,2cyclictest1202380-21kworker/u16:0+events_unbound12:08:485
539644993432,2cyclictest1053092-21kworker/u16:0+events_unbound11:21:015
539644993432,2cyclictest1015594-21kworker/u16:1+events_unbound12:34:205
539644993432,2cyclictest1015594-21kworker/u16:1+events_unbound12:34:205
539639993432,2cyclictest1092981-21kworker/u16:2+events_unbound11:17:084
539652993331,1cyclictest0-21swapper/711:00:047
539648993331,2cyclictest747793-21kworker/u16:3+flush-8:009:29:406
539644993331,2cyclictest601657-21kworker/u16:1+events_unbound08:27:095
539644993331,2cyclictest1155157-21kworker/u16:2+events_unbound12:28:405
539644993331,2cyclictest1053092-21kworker/u16:0+events_unbound11:00:415
539644993331,2cyclictest1015594-21kworker/u16:1+events_unbound11:54:455
539639993331,2cyclictest799799-21kworker/u16:2+events_unbound10:26:124
539639993331,2cyclictest799799-21kworker/u16:2+events_unbound10:26:124
539652993231,0cyclictest0-21swapper/711:08:017
539652993230,1cyclictest0-21swapper/708:34:527
539652993229,2cyclictest954262-21ssh10:17:057
539644993230,2cyclictest892618-21kworker/u16:0+events_unbound10:30:125
539639993231,1cyclictest839722-21kworker/u16:0+events_unbound09:41:094
539639993230,2cyclictest799799-21kworker/u16:2+flush-8:010:11:134
539639993230,2cyclictest709011-21kworker/u16:0+flush-8:009:14:334
539639993229,2cyclictest799799-21kworker/u16:2+events_unbound10:05:004
539639993229,2cyclictest1279429-21kworker/u16:0+events_unbound12:34:324
539639993229,2cyclictest1279429-21kworker/u16:0+events_unbound12:34:324
539639993129,2cyclictest799799-21kworker/u16:2+flush-8:010:39:534
539639993129,2cyclictest1202380-21kworker/u16:0+events_unbound12:07:084
539639993129,2cyclictest1053092-21kworker/u16:0+flush-8:011:34:434
539639993129,2cyclictest1015594-21kworker/u16:1+events_unbound11:32:564
539652993029,0cyclictest0-21swapper/711:19:417
539652993029,0cyclictest0-21swapper/708:24:527
539652993029,0cyclictest0-21swapper/707:54:547
539652993028,1cyclictest1054626-21ssh10:58:057
539648993028,2cyclictest839722-21kworker/u16:0+flush-8:009:40:156
539648993028,2cyclictest1053092-21kworker/u16:0+events_unbound11:29:296
539639993028,2cyclictest892618-21kworker/u16:0+events_unbound09:59:374
539639993028,2cyclictest799799-21kworker/u16:2+events_unbound09:19:124
539652992928,0cyclictest0-21swapper/709:41:257
539652992928,0cyclictest0-21swapper/709:25:377
539652992928,0cyclictest0-21swapper/709:14:057
539652992926,2cyclictest1030295-21ssh10:49:047
539652992925,2cyclictest776561-21diskmemload11:39:497
539639992927,2cyclictest814173-21kworker/u16:1+events_unbound09:51:054
539639992927,2cyclictest747793-21kworker/u16:3+events_unbound09:32:254
539652992827,0cyclictest0-21swapper/709:54:327
539652992826,1cyclictest659920-21crond08:09:327
539652992826,1cyclictest1204167-21ssh11:58:207
539648992826,2cyclictest931561-21kworker/u16:1+flush-8:010:20:226
539648992826,2cyclictest800447-21kworker/u16:4+events_unbound09:20:346
539648992826,2cyclictest641402-21kworker/u16:4+events_unbound08:01:216
539644992826,2cyclictest679565-21kworker/u16:2+events_unbound08:30:445
539639992826,2cyclictest800447-21kworker/u16:4+events_unbound09:22:214
539639992826,2cyclictest799799-21kworker/u16:2+events_unbound10:22:414
539639992826,2cyclictest539377-21kworker/u16:2+flush-8:007:14:494
539639992825,2cyclictest1030694-21kworker/u16:4+events_unbound10:49:374
9658532270,1chrt965852-21ssh10:20:297
539652992724,2cyclictest929008-21ssh10:07:017
539648992725,2cyclictest679565-21kworker/u16:2+events_unbound08:21:176
539648992725,2cyclictest679565-21kworker/u16:2+events_unbound08:21:176
539648992725,2cyclictest1053092-21kworker/u16:0+flush-8:011:40:196
539648992725,2cyclictest1030694-21kworker/u16:4+events_unbound10:55:256
539648992724,2cyclictest1015594-21kworker/u16:1+events_unbound11:09:396
539644992725,2cyclictest582253-21kworker/u16:3+events_unbound07:36:445
539644992725,2cyclictest582253-21kworker/u16:3+events_unbound07:36:445
539639992725,2cyclictest582253-21kworker/u16:3+events_unbound08:39:454
539639992725,2cyclictest1155157-21kworker/u16:2+events_unbound11:47:124
539639992725,2cyclictest1053092-21kworker/u16:0+events_unbound11:09:524
539652992625,0cyclictest0-21swapper/710:35:307
539652992624,1cyclictest1265193-21ssh12:21:207
539648992624,2cyclictest839722-21kworker/u16:0+events_unbound09:34:486
539648992624,2cyclictest679565-21kworker/u16:2+events_unbound08:46:246
539648992624,2cyclictest601657-21kworker/u16:1+events_unbound08:17:566
539648992624,2cyclictest529374-21kworker/u16:1+events_unbound07:24:176
539648992623,2cyclictest601657-21kworker/u16:1+events_unbound07:54:426
539644992624,2cyclictest529374-21kworker/u16:1+events_unbound07:27:095
539644992624,2cyclictest1229863-21kworker/u16:3+events_unbound12:16:375
539639992624,2cyclictest4030285-21kworker/u16:0+events_unbound07:09:534
539639992624,2cyclictest1053092-21kworker/u16:0+events_unbound11:08:284
539639992623,2cyclictest1202380-21kworker/u16:0+events_unbound12:09:444
539652992524,0cyclictest0-21swapper/712:33:217
539652992524,0cyclictest0-21swapper/712:33:217
539652992524,0cyclictest0-21swapper/711:18:177
539652992524,0cyclictest0-21swapper/710:43:537
539652992524,0cyclictest0-21swapper/709:32:497
539652992523,1cyclictest1178781-21sh11:47:207
539652992523,1cyclictest1129619-21ssh11:28:287
539652992523,1cyclictest0-21swapper/707:19:597
53965299250,24cyclictest800164-21sshd-session10:26:417
53965299250,24cyclictest800164-21sshd-session10:26:417
539648992523,2cyclictest709011-21kworker/u16:0+events_unbound08:36:326
539648992523,2cyclictest4030285-21kworker/u16:0+events_unbound07:14:176
539648992523,2cyclictest1053092-21kworker/u16:0+events_unbound11:15:236
539648992523,2cyclictest1030694-21kworker/u16:4+events_unbound11:55:076
539648992522,2cyclictest582253-21kworker/u16:3+events_unbound08:39:356
539644992523,2cyclictest601657-21kworker/u16:1+events_unbound07:47:095
539639992524,1cyclictest1155157-21kworker/u16:2+events_unbound12:24:044
539639992523,2cyclictest1053092-21kworker/u16:0+events_unbound11:42:094
539652992423,0cyclictest0-21swapper/710:11:487
539652992422,1cyclictest0-21swapper/708:09:447
539652992421,2cyclictest1227510-21ssh12:05:407
539652992421,1cyclictest799285-21ssh09:16:167
539648992422,2cyclictest800447-21kworker/u16:4+events_unbound10:01:016
539648992422,2cyclictest601657-21kworker/u16:1+events_unbound08:04:426
539648992422,2cyclictest539377-21kworker/u16:2+events_unbound07:48:216
539648992422,2cyclictest1155157-21kworker/u16:2+events_unbound12:10:396
539648992422,2cyclictest1015594-21kworker/u16:1+events_unbound11:05:276
539648992416,2cyclictest1015594-21kworker/u16:1+flush-8:012:19:516
539644992422,2cyclictest679565-21kworker/u16:2+events_unbound08:56:365
539639992423,1cyclictest1279429-21kworker/u16:0+events_unbound12:37:004
539639992422,2cyclictest814173-21kworker/u16:1+events_unbound09:38:524
539652992320,1cyclictest0-21swapper/707:09:497
539648992321,2cyclictest839722-21kworker/u16:0+events_unbound09:45:276
539648992321,2cyclictest839722-21kworker/u16:0+events_unbound09:45:276
539648992321,2cyclictest747793-21kworker/u16:3+events_unbound09:02:256
539648992321,2cyclictest601657-21kworker/u16:1+events_unbound07:51:216
539648992321,2cyclictest582253-21kworker/u16:3+events_unbound07:39:326
539648992321,2cyclictest582253-21kworker/u16:3+events_unbound07:39:326
539648992321,2cyclictest529374-21kworker/u16:1+events_unbound07:15:576
539648992321,2cyclictest1053092-21kworker/u16:0+events_unbound11:35:176
539648992320,2cyclictest733221-21kworker/u16:1+events_unbound09:04:386
539639992321,2cyclictest679565-21kworker/u16:2+flush-8:008:19:524
539639992321,2cyclictest679565-21kworker/u16:2+flush-8:008:19:524
539639992321,2cyclictest582253-21kworker/u16:3+events_unbound07:39:574
539652992221,0cyclictest0-21swapper/712:24:557
539652992221,0cyclictest0-21swapper/707:14:387
539648992220,2cyclictest679565-21kworker/u16:2+events_unbound08:51:056
539648992220,2cyclictest679565-21kworker/u16:2+events_unbound08:31:336
539648992220,2cyclictest601657-21kworker/u16:1+events_unbound08:11:006
539648992220,2cyclictest1229863-21kworker/u16:3+events_unbound12:16:356
539644992220,2cyclictest679565-21kworker/u16:2+events_unbound09:04:285
539639992220,2cyclictest931561-21kworker/u16:1+events_unbound10:16:244
539639992220,2cyclictest582253-21kworker/u16:3+flush-8:007:34:284
539639992220,2cyclictest1202380-21kworker/u16:0+events_unbound12:01:244
539652992120,0cyclictest0-21swapper/712:34:417
539652992120,0cyclictest0-21swapper/708:19:487
539652992120,0cyclictest0-21swapper/708:19:487
539648992119,2cyclictest1015594-21kworker/u16:1+events_unbound11:50:206
539648992118,2cyclictest956042-21kworker/u16:3+flush-8:010:39:386
539644992119,2cyclictest582253-21kworker/u16:3+events_unbound07:32:065
539644992119,2cyclictest539377-21kworker/u16:2+events_unbound07:53:445
539644992118,2cyclictest733221-21kworker/u16:1+flush-8:008:49:515
539639992119,2cyclictest539377-21kworker/u16:2+events_unbound07:59:284
539639992119,2cyclictest1015594-21kworker/u16:1+flush-8:011:49:594
539652992019,0cyclictest0-21swapper/712:16:137
539652992019,0cyclictest0-21swapper/707:49:287
539652992018,1cyclictest990729-21ssh10:30:207
539648992018,2cyclictest956042-21kworker/u16:3+events_unbound10:30:086
539648992018,2cyclictest679565-21kworker/u16:2+events_unbound08:57:266
539648992018,2cyclictest582253-21kworker/u16:3+events_unbound07:42:106
539648992014,6cyclictest582253-21kworker/u16:3+events_unbound07:31:116
539644992018,2cyclictest601657-21kworker/u16:1+events_unbound08:12:455
539644992018,2cyclictest601657-21kworker/u16:1+events_unbound08:05:005
539644992018,2cyclictest582253-21kworker/u16:3+events_unbound08:41:135
539639992018,2cyclictest1053092-21kworker/u16:0+events_unbound11:01:204
539639992018,2cyclictest1015594-21kworker/u16:1+events_unbound12:27:164
539652991918,0cyclictest0-21swapper/707:49:537
539652991916,2cyclictest1206196-21ssh11:59:487
53965299190,18cyclictest916673-21minicom10:03:067
539648991917,2cyclictest931561-21kworker/u16:1+flush-8:010:10:116
539648991917,2cyclictest1202380-21kworker/u16:0+flush-8:012:05:266
539648991916,2cyclictest1279429-21kworker/u16:0+events_unbound12:29:376
539648991916,2cyclictest1279429-21kworker/u16:0+events_unbound12:29:376
539644991917,2cyclictest4030285-21kworker/u16:0+events_unbound07:18:455
539639991917,2cyclictest1202380-21kworker/u16:0+events_unbound11:59:134
539652991816,1cyclictest1141688-21ssh11:32:447
53965299180,16cyclictest0-21swapper/707:25:007
539648991816,2cyclictest582253-21kworker/u16:3+events_unbound08:29:166
539648991816,2cyclictest529374-21kworker/u16:1+events_unbound07:28:216
539644991816,2cyclictest582253-21kworker/u16:3+events_unbound08:17:135
539639991816,2cyclictest582253-21kworker/u16:3+flush-8:008:34:574
539644991715,2cyclictest529374-21kworker/u16:1+events_unbound07:20:445
539644991714,2cyclictest747793-21kworker/u16:3+flush-8:009:04:435
539639991712,4cyclictest592667-21expr07:34:454
539639991712,4cyclictest592667-21expr07:34:454
539652991615,0cyclictest0-21swapper/709:09:167
539648991613,2cyclictest1015594-21kworker/u16:1+events_unbound10:59:336
539648991612,3cyclictest892618-21kworker/u16:0+events_unbound10:44:466
539644991614,2cyclictest679565-21kworker/u16:2+events_unbound08:20:445
539644991614,2cyclictest679565-21kworker/u16:2+events_unbound08:20:445
539644991614,2cyclictest641402-21kworker/u16:4+events_unbound08:02:145
539639991614,2cyclictest641402-21kworker/u16:4+flush-8:008:04:534
539652991514,0cyclictest0-21swapper/707:29:407
539652991513,1cyclictest1180429-21ssh11:49:357
539648991513,2cyclictest709011-21kworker/u16:0+flush-8:009:15:156
539644991513,2cyclictest601657-21kworker/u16:1+events_unbound07:40:445
539652991413,0cyclictest0-21swapper/708:39:477
539652991410,3cyclictest0-21swapper/708:59:337
539648991413,1cyclictest0-21swapper/610:17:276
539648991412,2cyclictest799799-21kworker/u16:2+flush-8:010:50:216
539648991412,2cyclictest799799-21kworker/u16:2+events_unbound09:26:266
539644991412,2cyclictest679565-21kworker/u16:2+events_unbound08:49:145
539644991412,2cyclictest539377-21kworker/u16:2+events_unbound07:59:145
539639991412,2cyclictest679565-21kworker/u16:2+flush-8:008:54:594
53965299139,3cyclictest1274-21snmpd09:02:487
539652991312,0cyclictest0-21swapper/708:00:337
539648991311,2cyclictest931561-21kworker/u16:1+events_unbound10:25:336
539648991311,2cyclictest931561-21kworker/u16:1+events_unbound10:25:336
53964899130,0cyclictest0-21swapper/610:34:476
539644991311,2cyclictest4030285-21kworker/u16:0+events_unbound07:09:595
539639991311,2cyclictest4030285-21kworker/u16:0+flush-8:007:20:014
539639991310,2cyclictest747793-21kworker/u16:3+flush-8:009:04:534
53963999130,1cyclictest0-21swapper/407:49:584
53965299128,3cyclictest1274-21snmpd08:51:037
53965299126,5cyclictest6499-21gmain08:48:327
539648991210,2cyclictest800447-21kworker/u16:4+events_unbound10:08:546
539648991210,2cyclictest800447-21kworker/u16:4+events_unbound09:56:206
53963999120,1cyclictest0-21swapper/408:01:524
53965299117,3cyclictest5788-21gmain08:15:007
53964899119,2cyclictest878549-21kworker/u16:3+events_unbound09:50:086
53964899119,2cyclictest1279429-21kworker/u16:0+events_unbound12:35:326
53964899118,2cyclictest86-21ksoftirqd/612:24:496
53964899112,8cyclictest782552-21cut09:09:546
53964499119,2cyclictest709011-21kworker/u16:0+events_unbound08:37:135
539639991110,1cyclictest0-21swapper/408:51:514
53965299109,0cyclictest0-21swapper/707:34:437
53965299109,0cyclictest0-21swapper/707:34:437
53965299103,6cyclictest6449-21gmain08:29:527
53963999108,2cyclictest529374-21kworker/u16:1+events_unbound07:24:484
5396489994,4cyclictest1131550-21cat11:29:486
5396489990,3cyclictest1169295-21irqcore11:44:516
5396399997,2cyclictest679565-21kworker/u16:2+events_unbound08:59:554
5396489980,7cyclictest1106521-21fschecks_time11:19:486
5396399986,1cyclictest0-21swapper/408:24:534
5396399986,1cyclictest0-21swapper/407:44:464
5396399984,3cyclictest700017-21tune2fs08:29:484
5396399983,4cyclictest732203-21cut08:44:534
5396399983,4cyclictest671953-21kthreadcore08:14:534
5396399975,1cyclictest0-21swapper/408:09:474
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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