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2026-03-17 - 21:01
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Tue Mar 17, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
84502625948,7sleep60-21swapper/607:00:426
845523995351,2cyclictest1321146-21kworker/u16:4+events_unbound11:13:395
845536995044,5cyclictest887382-21latency_hist07:23:397
845519995046,3cyclictest1415128-21kworker/u16:3+flush-8:011:43:384
845536994842,5cyclictest954297-21latency_hist07:58:387
84521424737,7sleep50-21swapper/507:03:225
845528994543,2cyclictest762722-21kworker/u16:2+flush-8:007:43:396
845528994543,2cyclictest1440001-21kworker/u16:1+events_unbound11:33:136
84520224535,7sleep40-21swapper/407:03:134
845528994442,2cyclictest1475411-21kworker/u16:1+events_unbound12:05:116
845528994442,2cyclictest1475411-21kworker/u16:1+events_unbound12:05:116
845536994341,1cyclictest1078773-21diskmemload09:14:167
845523994341,2cyclictest1452971-21kworker/u16:2+events_unbound12:16:015
845523994341,2cyclictest1415128-21kworker/u16:3+events_unbound11:30:005
845523994341,2cyclictest1342347-21kworker/u16:5+events_unbound11:02:405
845523994341,2cyclictest1321146-21kworker/u16:4+flush-8:010:54:055
845523994341,2cyclictest1031293-21kworker/u16:0+events_unbound09:21:325
845528994240,2cyclictest1296090-21kworker/u16:2+events_unbound10:35:016
845528994240,2cyclictest1126116-21kworker/u16:2+events_unbound09:31:326
845528994240,2cyclictest1011445-21kworker/u16:1+events_unbound09:12:336
845523994240,2cyclictest1200044-21kworker/u16:0+events_unbound10:28:035
845523994240,2cyclictest1200044-21kworker/u16:0+events_unbound09:59:565
845523994240,2cyclictest1163462-21kworker/u16:2+events_unbound09:52:485
845523994240,2cyclictest1151115-21kworker/u16:1+events_unbound09:54:365
845519994239,2cyclictest1499618-21kworker/u16:4+events_unbound12:18:554
845536994140,0cyclictest0-21swapper/711:32:197
845536994140,0cyclictest0-21swapper/710:59:487
845536994136,4cyclictest1021300-21latency_hist08:33:387
845528994139,2cyclictest1440001-21kworker/u16:1+events_unbound11:36:486
845528994139,2cyclictest1296090-21kworker/u16:2+events_unbound11:08:286
845528994139,2cyclictest1163462-21kworker/u16:2+events_unbound10:25:016
845523994139,2cyclictest1415128-21kworker/u16:3+events_unbound11:34:125
845523994139,2cyclictest1296090-21kworker/u16:2+events_unbound10:35:445
845523994139,2cyclictest1151115-21kworker/u16:1+events_unbound09:47:125
845523994139,2cyclictest1011445-21kworker/u16:1+events_unbound09:17:445
845536994038,1cyclictest1537787-21ssh12:13:007
845536994038,1cyclictest1078773-21diskmemload10:54:367
845536994035,4cyclictest1381265-21latency_hist11:08:387
845528994038,2cyclictest1151115-21kworker/u16:1+events_unbound10:20:296
845528994038,2cyclictest1151115-21kworker/u16:1+events_unbound09:51:156
845523994038,2cyclictest1415128-21kworker/u16:3+events_unbound11:42:035
845523994038,2cyclictest1296090-21kworker/u16:2+events_unbound11:10:165
845536993937,1cyclictest1404664-21ssh11:17:167
845536993937,1cyclictest1186876-21ssh09:47:087
845528993937,2cyclictest1452971-21kworker/u16:2+events_unbound11:40:006
845528993937,2cyclictest1163462-21kworker/u16:2+events_unbound09:44:326
845528993937,2cyclictest1151115-21kworker/u16:1+events_unbound09:37:326
845528993937,2cyclictest1031293-21kworker/u16:0+events_unbound09:20:326
845523993937,2cyclictest1499618-21kworker/u16:4+events_unbound12:07:595
845523993937,2cyclictest1499618-21kworker/u16:4+events_unbound12:07:595
845523993937,2cyclictest1499618-21kworker/u16:4+events_unbound12:01:595
845523993937,2cyclictest1475411-21kworker/u16:1+events_unbound12:25:325
845523993937,2cyclictest1475411-21kworker/u16:1+events_unbound12:22:525
845523993937,2cyclictest1452971-21kworker/u16:2+events_unbound11:45:155
845523993937,2cyclictest1296090-21kworker/u16:2+flush-8:011:19:195
845523993937,2cyclictest1296090-21kworker/u16:2+events_unbound11:07:245
845523993937,2cyclictest1296090-21kworker/u16:2+events_unbound10:48:205
845523993937,2cyclictest1296090-21kworker/u16:2+events_unbound10:48:205
845523993937,2cyclictest1031293-21kworker/u16:0+events_unbound09:10:085
845523993936,2cyclictest1138093-21kworker/u16:3+events_unbound10:03:415
845523993936,2cyclictest1138093-21kworker/u16:3+events_unbound10:03:415
845536993837,0cyclictest0-21swapper/712:05:037
845536993837,0cyclictest0-21swapper/712:05:037
845536993837,0cyclictest0-21swapper/710:05:407
845536993837,0cyclictest0-21swapper/710:05:407
845536993836,1cyclictest1391746-21ssh11:10:437
845536993836,1cyclictest1163816-21ssh09:38:407
845536993836,1cyclictest1138002-21ssh09:26:217
845528993836,2cyclictest1321146-21kworker/u16:4+events_unbound10:47:516
845528993836,2cyclictest1321146-21kworker/u16:4+events_unbound10:47:516
845528993836,2cyclictest1308738-21kworker/u16:0+events_unbound10:59:526
845528993836,2cyclictest1151115-21kworker/u16:1+events_unbound10:14:206
845523993836,2cyclictest1475411-21kworker/u16:1+events_unbound11:50:005
845523993836,2cyclictest1296090-21kworker/u16:2+events_unbound10:50:475
845523993836,2cyclictest1283760-21kworker/u16:3+events_unbound10:40:085
845523993836,2cyclictest1200044-21kworker/u16:0+events_unbound10:10:005
845523993836,2cyclictest1126116-21kworker/u16:2+events_unbound09:31:365
845523993836,2cyclictest1031293-21kworker/u16:0+events_unbound09:06:005
845523993836,2cyclictest1011445-21kworker/u16:1+events_unbound09:25:135
8361352384,29sleep70-21swapper/706:58:427
845536993736,0cyclictest0-21swapper/710:37:287
845536993736,0cyclictest0-21swapper/709:31:287
845536993735,1cyclictest1078773-21diskmemload11:41:207
845536993734,2cyclictest1453196-21ssh11:37:497
845528993735,2cyclictest1475411-21kworker/u16:1+flush-8:012:29:076
845528993735,2cyclictest1452971-21kworker/u16:2+events_unbound11:52:346
845528993735,2cyclictest1163462-21kworker/u16:2+events_unbound09:56:516
845523993735,2cyclictest1283760-21kworker/u16:3+events_unbound10:31:205
845523993735,2cyclictest1163462-21kworker/u16:2+events_unbound10:15:445
845523993735,2cyclictest1151115-21kworker/u16:1+events_unbound09:37:245
845523993734,2cyclictest1200044-21kworker/u16:0+flush-8:010:18:435
845536993636,0cyclictest0-21swapper/709:23:047
845536993635,0cyclictest0-21swapper/711:20:337
845536993634,1cyclictest1513305-21ssh12:02:197
845536993633,2cyclictest1283327-21ssh10:26:297
845528993634,2cyclictest1499618-21kworker/u16:4+events_unbound12:11:146
845528993634,2cyclictest1475411-21kworker/u16:1+events_unbound12:25:166
845528993634,2cyclictest1475411-21kworker/u16:1+events_unbound11:48:346
845528993634,2cyclictest1452971-21kworker/u16:2+events_unbound12:15:526
845528993634,2cyclictest1321146-21kworker/u16:4+events_unbound10:53:476
845528993634,2cyclictest1200044-21kworker/u16:0+events_unbound10:00:006
845528993634,2cyclictest1163462-21kworker/u16:2+events_unbound10:07:536
845528993634,2cyclictest1163462-21kworker/u16:2+events_unbound10:07:536
845528993634,2cyclictest1138093-21kworker/u16:3+events_unbound09:43:336
845523993634,2cyclictest1526496-21kworker/u16:3+events_unbound12:13:115
845536993535,0cyclictest0-21swapper/711:47:207
845536993535,0cyclictest0-21swapper/709:49:477
845536993534,0cyclictest0-21swapper/710:23:007
845536993533,1cyclictest1161137-21ssh09:34:287
84553699350,33cyclictest1259914-21ssh10:17:577
845528993533,2cyclictest1342347-21kworker/u16:5+events_unbound10:52:446
845528993533,2cyclictest1296090-21kworker/u16:2+events_unbound11:09:196
845528993533,2cyclictest1151115-21kworker/u16:1+events_unbound10:42:016
845523993533,2cyclictest1573432-21kworker/u16:0+flush-8:012:29:395
845523993533,2cyclictest1296090-21kworker/u16:2+events_unbound11:26:155
845523993533,2cyclictest1296090-21kworker/u16:2+events_unbound11:26:155
845523993532,2cyclictest762722-21kworker/u16:2+events_unbound07:28:415
845523993532,2cyclictest762722-21kworker/u16:2+events_unbound07:03:535
845536993433,0cyclictest0-21swapper/710:52:057
845536993433,0cyclictest0-21swapper/709:10:287
845528993432,2cyclictest853968-21kworker/u16:4+events_unbound07:15:496
845528993432,2cyclictest853968-21kworker/u16:4+events_unbound07:15:496
845528993432,2cyclictest1475411-21kworker/u16:1+events_unbound12:22:346
845528993432,2cyclictest1394671-21kworker/u16:1+events_unbound11:16:336
845528993432,2cyclictest1381289-21kworker/u16:0+events_unbound11:25:206
845528993432,2cyclictest1381289-21kworker/u16:0+events_unbound11:25:206
845528993432,2cyclictest1031293-21kworker/u16:0+events_unbound09:26:476
845523993432,2cyclictest1151115-21kworker/u16:1+events_unbound09:41:155
845519993431,3cyclictest1011445-21kworker/u16:1+flush-8:008:25:534
845536993332,1cyclictest0-21swapper/711:53:007
845536993332,0cyclictest0-21swapper/711:25:247
845536993332,0cyclictest0-21swapper/711:25:247
845536993332,0cyclictest0-21swapper/710:10:537
845528993331,2cyclictest1499618-21kworker/u16:4+events_unbound12:01:516
845528993331,2cyclictest1475411-21kworker/u16:1+events_unbound11:56:506
845528993331,2cyclictest1296090-21kworker/u16:2+events_unbound11:20:126
845528993331,2cyclictest1200044-21kworker/u16:0+events_unbound10:30:556
845523993331,2cyclictest1499618-21kworker/u16:4+events_unbound11:55:595
845536993232,0cyclictest0-21swapper/712:31:007
845536993231,1cyclictest1078773-21diskmemload12:27:557
845528993230,2cyclictest1163462-21kworker/u16:2+events_unbound10:09:336
845528993230,2cyclictest1079251-21kworker/u16:4+flush-8:009:14:316
845523993230,2cyclictest934060-21kworker/u16:1+events_unbound08:07:165
845523993230,2cyclictest934060-21kworker/u16:1+events_unbound07:57:115
845536993130,0cyclictest0-21swapper/708:53:417
845523993129,2cyclictest954024-21kworker/u16:0+events_unbound08:12:175
845536993030,0cyclictest0-21swapper/712:19:527
845536993030,0cyclictest0-21swapper/709:05:447
84553699300,29cyclictest1319790-21rm10:41:537
845523993028,2cyclictest954024-21kworker/u16:0+events_unbound08:24:525
845523993028,2cyclictest954024-21kworker/u16:0+events_unbound08:17:575
845523993028,2cyclictest762722-21kworker/u16:2+events_unbound07:40:165
845523993028,2cyclictest762722-21kworker/u16:2+events_unbound07:22:495
845536992928,0cyclictest0-21swapper/708:03:167
845536992928,0cyclictest0-21swapper/708:03:167
845536992925,3cyclictest650-21systemd-journal11:58:337
845528992927,2cyclictest934060-21kworker/u16:1+events_unbound08:11:566
845528992927,2cyclictest762722-21kworker/u16:2+events_unbound07:48:016
845528992927,2cyclictest1058668-21kworker/u16:2+events_unbound08:53:166
845536992828,0cyclictest0-21swapper/709:56:557
845536992822,5cyclictest1059613-21latency_hist08:53:387
845528992826,2cyclictest954024-21kworker/u16:0+events_unbound08:16:166
845528992826,2cyclictest796911-21kworker/u16:3+events_unbound07:20:096
845528992826,2cyclictest1031293-21kworker/u16:0+events_unbound09:05:426
845536992727,0cyclictest0-21swapper/710:29:437
845528992725,2cyclictest954024-21kworker/u16:0+events_unbound08:22:176
845528992725,2cyclictest944426-21kworker/u16:3+events_unbound08:27:206
845528992724,2cyclictest963989-21kworker/u16:4+events_unbound08:28:406
845528992724,2cyclictest762722-21kworker/u16:2+flush-8:007:33:396
845519992724,2cyclictest1163462-21kworker/u16:2+events_unbound10:08:504
845523992624,2cyclictest963989-21kworker/u16:4+events_unbound08:31:565
845523992624,2cyclictest762722-21kworker/u16:2+events_unbound07:47:095
845519992624,2cyclictest1321146-21kworker/u16:4+flush-8:011:13:384
845528992523,2cyclictest963989-21kworker/u16:4+flush-8:008:34:056
845528992523,2cyclictest934060-21kworker/u16:1+events_unbound07:51:016
845528992523,2cyclictest762722-21kworker/u16:2+events_unbound07:10:166
845528992523,2cyclictest1058668-21kworker/u16:2+events_unbound09:02:256
845528992523,2cyclictest1011445-21kworker/u16:1+events_unbound08:40:086
845523992523,2cyclictest963989-21kworker/u16:4+events_unbound08:20:165
845523992523,2cyclictest796911-21kworker/u16:3+events_unbound07:34:405
845523992523,2cyclictest1011445-21kworker/u16:1+events_unbound08:51:155
845519992523,2cyclictest1296090-21kworker/u16:2+flush-8:010:58:334
845519992523,2cyclictest1138093-21kworker/u16:3+events_unbound09:49:064
845536992424,0cyclictest0-21swapper/712:17:297
845536992423,0cyclictest0-21swapper/708:03:497
845536992423,0cyclictest0-21swapper/707:51:567
845536992421,2cyclictest124-21kswapd008:25:477
845528992422,2cyclictest944426-21kworker/u16:3+events_unbound08:01:216
845528992422,2cyclictest944426-21kworker/u16:3+events_unbound08:01:216
845528992422,2cyclictest1031293-21kworker/u16:0+events_unbound08:48:016
845519992422,2cyclictest1163462-21kworker/u16:2+flush-8:010:19:034
845519992422,2cyclictest1163462-21kworker/u16:2+flush-8:009:53:594
845519992421,3cyclictest963989-21kworker/u16:4+flush-8:008:29:004
845519992420,3cyclictest1526496-21kworker/u16:3+flush-8:012:23:554
845528992321,2cyclictest796911-21kworker/u16:3+events_unbound07:25:006
845523992321,2cyclictest944426-21kworker/u16:3+events_unbound08:58:315
845523992321,2cyclictest944426-21kworker/u16:3+events_unbound08:02:005
845523992321,2cyclictest944426-21kworker/u16:3+events_unbound08:02:005
845523992321,2cyclictest1011445-21kworker/u16:1+events_unbound09:00:165
845519992321,2cyclictest1381289-21kworker/u16:0+flush-8:011:23:554
845519992321,2cyclictest1381289-21kworker/u16:0+flush-8:011:23:554
845519992320,2cyclictest1079251-21kworker/u16:4+events_unbound09:18:524
845528992220,2cyclictest954024-21kworker/u16:0+events_unbound08:08:176
845528992220,2cyclictest1058668-21kworker/u16:2+events_unbound08:54:566
845523992220,2cyclictest762722-21kworker/u16:2+events_unbound07:25:565
845523992220,2cyclictest1011445-21kworker/u16:1+events_unbound08:46:045
845523992220,2cyclictest1011445-21kworker/u16:1+events_unbound08:40:495
845519992220,2cyclictest1452971-21kworker/u16:2+flush-8:012:03:594
845519992220,2cyclictest1452971-21kworker/u16:2+flush-8:012:03:594
845519992220,2cyclictest1031293-21kworker/u16:0+flush-8:009:08:394
845519992219,2cyclictest1296090-21kworker/u16:2+events_unbound11:13:514
845528992119,2cyclictest762722-21kworker/u16:2+flush-8:007:04:056
845519992119,2cyclictest1381289-21kworker/u16:0+events_unbound11:33:334
845519992119,2cyclictest1296090-21kworker/u16:2+flush-8:011:18:594
845536992014,5cyclictest650-21systemd-journal08:38:387
845528992018,2cyclictest762722-21kworker/u16:2+events_unbound07:54:216
845523992018,2cyclictest934060-21kworker/u16:1+events_unbound07:50:575
845523992018,2cyclictest762722-21kworker/u16:2+events_unbound07:15:005
845523992018,2cyclictest762722-21kworker/u16:2+events_unbound07:15:005
845519992018,2cyclictest796911-21kworker/u16:3+events_unbound07:08:544
845519992018,2cyclictest1499618-21kworker/u16:4+events_unbound12:13:234
845519992018,2cyclictest1452971-21kworker/u16:2+events_unbound11:54:004
845536991918,0cyclictest0-21swapper/707:47:157
845536991913,5cyclictest1050056-21latency_hist08:48:387
845519991917,2cyclictest1138093-21kworker/u16:3+flush-8:009:44:044
845536991817,0cyclictest0-21swapper/707:14:177
845536991817,0cyclictest0-21swapper/707:14:177
845528991816,2cyclictest796911-21kworker/u16:3+events_unbound07:31:096
845523991816,2cyclictest963989-21kworker/u16:4+events_unbound08:36:045
845523991816,2cyclictest762722-21kworker/u16:2+events_unbound07:11:545
845519991816,2cyclictest954024-21kworker/u16:0+events_unbound07:58:524
845519991816,2cyclictest954024-21kworker/u16:0+events_unbound07:58:524
845519991816,2cyclictest762722-21kworker/u16:2+events_unbound07:39:064
845519991816,2cyclictest1452971-21kworker/u16:2+events_unbound12:13:584
845519991815,2cyclictest1079251-21kworker/u16:4+flush-8:009:08:574
845536991717,0cyclictest0-21swapper/709:59:147
845536991716,0cyclictest0-21swapper/707:34:057
845519991715,2cyclictest853968-21kworker/u16:4+events_unbound07:19:004
845536991616,0cyclictest0-21swapper/710:46:337
845536991616,0cyclictest0-21swapper/710:46:337
845536991615,0cyclictest0-21swapper/707:10:097
845519991614,2cyclictest954024-21kworker/u16:0+flush-8:008:09:044
845519991614,2cyclictest1031293-21kworker/u16:0+events_unbound09:38:544
84553699156,7cyclictest0-21swapper/707:24:157
84553699150,14cyclictest0-21swapper/708:59:037
845519991513,2cyclictest1475411-21kworker/u16:1+flush-8:011:58:584
845519991513,2cyclictest1151115-21kworker/u16:1+flush-8:010:08:384
845519991513,2cyclictest1151115-21kworker/u16:1+flush-8:010:08:384
845536991412,1cyclictest0-21swapper/708:09:057
845536991410,3cyclictest1267-21snmpd07:30:147
845519991413,1cyclictest0-21swapper/409:28:044
845519991412,2cyclictest1342347-21kworker/u16:5+events_unbound11:04:004
845519991412,2cyclictest1151115-21kworker/u16:1+events_unbound10:34:024
84551999140,1cyclictest0-21swapper/410:33:394
84551999140,14cyclictest0-21swapper/411:00:554
84553699139,3cyclictest998671-21pool-NetworkMan08:19:007
84553699136,6cyclictest0-21swapper/708:41:147
84553699130,11cyclictest849702-21kthreadcore07:04:007
845519991312,1cyclictest0-21swapper/410:52:344
845519991312,1cyclictest0-21swapper/410:46:154
845519991312,1cyclictest0-21swapper/410:46:154
845519991311,2cyclictest954024-21kworker/u16:0+events_unbound07:58:334
845519991311,2cyclictest1475411-21kworker/u16:1+flush-8:012:29:064
845519991311,2cyclictest1011445-21kworker/u16:1+flush-8:008:53:384
84551999130,13cyclictest0-21swapper/410:14:444
84553699126,5cyclictest6184-21gvfs-afc-volume07:38:507
845519991211,1cyclictest0-21swapper/410:39:574
845519991211,1cyclictest0-21swapper/409:01:444
845519991210,2cyclictest1475411-21kworker/u16:1+events_unbound11:49:074
845519991210,2cyclictest1011445-21kworker/u16:1+flush-8:008:43:584
84551999120,1cyclictest0-21swapper/408:20:544
845536991110,1cyclictest0-21swapper/708:13:527
84551999119,2cyclictest1011445-21kworker/u16:1+events_unbound08:34:074
84551999114,6cyclictest6018-21gdbus11:34:474
84551999109,1cyclictest0-21swapper/408:05:554
84551999108,2cyclictest1151115-21kworker/u16:1+events_unbound10:23:534
84551999105,4cyclictest1108464-21kthreadcore09:13:574
84551999104,1cyclictest9264602cat07:43:504
84551999100,10cyclictest0-21swapper/407:31:434
8455199998,1cyclictest0-21swapper/411:48:134
8455199998,1cyclictest0-21swapper/408:55:454
8455199998,1cyclictest0-21swapper/407:51:254
8455199990,8cyclictest1034536-21kthreadcore08:38:574
8455199987,1cyclictest0-21swapper/407:04:264
8455199986,1cyclictest0-21swapper/407:23:574
8455199983,4cyclictest1212766-21expr09:58:504
8455199983,4cyclictest1154471-21tr09:33:564
8455199983,4cyclictest1142156-21cut09:28:554
8455199980,7cyclictest0-21swapper/407:33:534
8455199973,3cyclictest985780-21cut08:13:554
8455199973,3cyclictest868837-21tr07:13:514
8455199973,3cyclictest868837-21tr07:13:514
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