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2026-08-28 - 02:01
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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 highest latencies:
System rack0slot2.osadl.org (updated Fri Aug 28, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
381388125948,8sleep50-21swapper/519:07:095
381406025621,30sleep70-21swapper/719:09:447
3814342994038,2cyclictest174857-21kworker/u16:2+flush-8:000:00:125
381382723625,8sleep40-21swapper/419:06:284
3814338993533,2cyclictest314188-21kworker/u16:2+events_unbound00:15:484
3814338993331,2cyclictest200921-21kworker/u16:4+events_unbound23:31:484
3814338993230,2cyclictest3795966-21kworker/u16:2+events_unbound19:10:254
3814342993028,2cyclictest2453-21kworker/u16:1+flush-8:023:15:135
3814338993028,2cyclictest3774181-21kworker/u16:4+events_unbound20:43:094
3814338993028,2cyclictest2453-21kworker/u16:1+events_unbound22:38:354
3814338993028,2cyclictest2453-21kworker/u16:1+events_unbound22:38:354
38090432307,8sleep60-21swapper/619:05:336
232942300,1sleep723296-21kthreadcore22:15:167
3814344992927,2cyclictest3865268-21kworker/u16:3+flush-8:021:09:556
3814342992926,2cyclictest3774181-21kworker/u16:4+events_unbound19:25:105
3814338992927,2cyclictest283139-21kworker/u16:5+events_unbound00:09:474
3814338992927,2cyclictest112856-21kworker/u16:0+events_unbound22:52:514
3814342992826,2cyclictest3865268-21kworker/u16:3+events_unbound20:50:095
3814338992826,2cyclictest4149497-21kworker/u16:0+events_unbound22:11:444
3814338992826,2cyclictest3865268-21kworker/u16:3+events_unbound20:01:584
3814338992826,2cyclictest274356-21kworker/u16:4+events_unbound00:01:114
3814338992826,2cyclictest214942-21kworker/u16:0+events_unbound23:42:194
3814338992826,2cyclictest200920-21kworker/u16:3+events_unbound23:58:194
3814338992826,2cyclictest125949-21kworker/u16:2+events_unbound23:00:124
3814342992725,2cyclictest3865268-21kworker/u16:3+flush-8:021:05:205
3814342992725,2cyclictest3774181-21kworker/u16:4+events_unbound20:30:175
3814338992725,2cyclictest63915-21kworker/u16:0+events_unbound22:32:514
3814338992725,2cyclictest4149497-21kworker/u16:0+flush-8:021:56:134
3814338992725,2cyclictest4109592-21kworker/u16:4+events_unbound21:50:034
3814338992725,2cyclictest3865268-21kworker/u16:3+events_unbound20:48:374
3814338992725,2cyclictest3865268-21kworker/u16:3+events_unbound20:33:574
3814338992725,2cyclictest3795966-21kworker/u16:2+events_unbound19:27:014
3814338992725,2cyclictest3774181-21kworker/u16:4+events_unbound20:39:024
3814338992725,2cyclictest3774181-21kworker/u16:4+events_unbound20:14:094
3814338992725,2cyclictest335584-21kworker/u16:3+events_unbound00:28:154
3814338992725,2cyclictest298763-21kworker/u16:0+events_unbound00:14:144
3814338992725,2cyclictest174857-21kworker/u16:2+events_unbound23:28:304
3814338992725,2cyclictest139820-21kworker/u16:3+flush-8:023:15:434
3814338992725,2cyclictest112856-21kworker/u16:0+events_unbound22:56:354
3814338992624,2cyclictest78760-21kworker/u16:3+events_unbound22:41:114
3814338992624,2cyclictest4109592-21kworker/u16:4+flush-8:022:09:014
3814338992624,2cyclictest4109592-21kworker/u16:4+events_unbound22:17:504
3814338992624,2cyclictest4109592-21kworker/u16:4+events_unbound22:02:354
3814338992624,2cyclictest4086396-21kworker/u16:2+events_unbound21:47:244
3814338992624,2cyclictest4086396-21kworker/u16:2+events_unbound21:34:404
3814338992624,2cyclictest3988644-21kworker/u16:2+flush-8:020:58:324
3814338992624,2cyclictest3895218-21kworker/u16:0+events_unbound20:27:174
3814338992624,2cyclictest3895218-21kworker/u16:0+events_unbound20:27:174
3814338992624,2cyclictest3865268-21kworker/u16:3+events_unbound21:21:444
3814338992624,2cyclictest3865268-21kworker/u16:3+events_unbound19:40:384
3814338992624,2cyclictest314188-21kworker/u16:2+events_unbound00:36:114
3814338992624,2cyclictest298763-21kworker/u16:0+flush-8:000:31:314
3814338992624,2cyclictest298763-21kworker/u16:0+flush-8:000:31:314
3814338992624,2cyclictest2453-21kworker/u16:1+events_unbound23:09:234
308702260,1chrt30873-21irqcore22:20:137
649912250,1chrt64992-21sh22:32:557
3814344992523,2cyclictest3895218-21kworker/u16:0+flush-8:020:35:106
3814342992522,2cyclictest4051528-21kworker/u16:1+flush-8:021:10:055
3814338992523,2cyclictest4124241-21kworker/u16:0+events_unbound21:41:404
3814338992523,2cyclictest3865268-21kworker/u16:3+events_unbound20:19:534
3814338992523,2cyclictest3795966-21kworker/u16:2+events_unbound19:18:104
3814338992523,2cyclictest3774181-21kworker/u16:4+events_unbound19:46:574
3814338992523,2cyclictest214942-21kworker/u16:0+flush-8:023:45:414
3814338992523,2cyclictest200920-21kworker/u16:3+flush-8:023:50:314
3814344992422,2cyclictest3865268-21kworker/u16:3+flush-8:021:14:506
3814342992422,2cyclictest3774181-21kworker/u16:4+events_unbound19:35:245
3814338992422,2cyclictest4109592-21kworker/u16:4+events_unbound22:47:364
3814338992422,2cyclictest4086396-21kworker/u16:2+events_unbound21:29:024
3814338992422,2cyclictest3876846-21kworker/u16:2+events_unbound19:52:374
3814338992422,2cyclictest3774181-21kworker/u16:4+events_unbound20:21:254
3814338992422,2cyclictest3774181-21kworker/u16:4+events_unbound20:08:294
3814344992321,2cyclictest3865268-21kworker/u16:3+flush-8:019:55:136
3814344992321,2cyclictest3865268-21kworker/u16:3+events_unbound21:00:096
3814344992321,2cyclictest3774181-21kworker/u16:4+flush-8:019:20:216
3814342992321,2cyclictest4086396-21kworker/u16:2+flush-8:021:35:105
3814342992321,2cyclictest3915937-21kworker/u16:1+flush-8:020:05:115
3814342992320,2cyclictest48818-21kworker/u16:2+events_unbound22:50:065
3814338992321,2cyclictest4109592-21kworker/u16:4+events_unbound22:22:394
3814338992321,2cyclictest4014508-21kworker/u16:1+events_unbound21:01:014
3814338992321,2cyclictest3865268-21kworker/u16:3+events_unbound21:06:534
3814338992321,2cyclictest3865268-21kworker/u16:3+events_unbound19:59:494
3814338992321,2cyclictest2453-21kworker/u16:1+events_unbound22:26:434
2219222230,1chrt221925-21ntp_kernel_pll_23:35:227
3814344992220,2cyclictest4051528-21kworker/u16:1+events_unbound21:30:226
3814344992220,2cyclictest3865268-21kworker/u16:3+events_unbound20:40:096
3814344992220,2cyclictest3795966-21kworker/u16:2+events_unbound19:15:106
3814342992220,2cyclictest335584-21kworker/u16:3+flush-8:000:25:435
3814342992218,3cyclictest3824139-21cat19:14:555
3814342992218,3cyclictest225074-21cat23:39:545
3814338992220,2cyclictest4109592-21kworker/u16:4+events_unbound21:35:434
3814338992220,2cyclictest274356-21kworker/u16:4+events_unbound00:20:204
3814347992119,1cyclictest0-21swapper/720:24:547
3814344992119,2cyclictest3865268-21kworker/u16:3+flush-8:019:50:176
3814342992119,2cyclictest4041784-21kworker/u16:0+flush-8:021:15:105
3814342992116,4cyclictest3973981-21latency_hist20:29:555
3814342992116,4cyclictest3973981-21latency_hist20:29:555
3814338992119,2cyclictest3809024-21kworker/u16:0+flush-8:019:30:334
3814338992119,2cyclictest200920-21kworker/u16:3+events_unbound23:35:114
3814344992018,2cyclictest4109592-21kworker/u16:4+flush-8:022:34:496
3814344992018,2cyclictest4041784-21kworker/u16:0+flush-8:021:15:196
3814344992018,2cyclictest3865268-21kworker/u16:3+flush-8:020:24:506
3814344992018,2cyclictest3774181-21kworker/u16:4+flush-8:020:05:246
3814344992018,2cyclictest3774181-21kworker/u16:4+flush-8:019:45:266
3814344992018,2cyclictest2453-21kworker/u16:1+flush-8:022:35:456
3814344992018,2cyclictest2453-21kworker/u16:1+flush-8:022:35:456
3814344992018,2cyclictest200920-21kworker/u16:3+flush-8:023:34:506
3814344992018,2cyclictest112856-21kworker/u16:0+events_unbound22:52:216
3814344992015,4cyclictest261653-21latency_hist23:54:546
3814344992015,2cyclictest3774181-21kworker/u16:4+flush-8:019:44:496
3814342992018,2cyclictest174857-21kworker/u16:2+flush-8:023:24:505
3814338992018,2cyclictest3774181-21kworker/u16:4+events_unbound19:35:284
3814338992018,2cyclictest3774181-21kworker/u16:4+events_unbound19:21:534
381434799190,18cyclictest4051779-21turbostat21:09:557
381434799190,18cyclictest3876526-21turbostat19:39:547
381434799190,17cyclictest4186189-21turbostat22:04:547
3814344991918,1cyclictest0-21swapper/623:47:396
3814344991917,2cyclictest4109592-21kworker/u16:4+flush-8:022:04:046
3814344991917,2cyclictest174857-21kworker/u16:2+flush-8:000:05:046
3814342991917,2cyclictest174857-21kworker/u16:2+events_unbound23:28:055
3814342991916,2cyclictest283139-21kworker/u16:5+flush-8:000:05:005
3814338991917,2cyclictest3865268-21kworker/u16:3+events_unbound20:54:364
1546692190,0sleep60-21swapper/623:10:136
3814347991816,1cyclictest347397-21turbostat00:29:547
3814347991815,2cyclictest1277-21snmpd20:50:227
3814344991817,1cyclictest0-21swapper/622:12:576
3814344991816,2cyclictest4124241-21kworker/u16:0+flush-8:021:41:336
3814344991816,2cyclictest3915937-21kworker/u16:1+events_unbound20:00:136
3814344991816,2cyclictest3865268-21kworker/u16:3+events_unbound21:26:066
3814344991816,2cyclictest273166-21kworker/u16:1+events_unbound00:04:016
3814344991816,2cyclictest138461-21kworker/u16:0+events_unbound23:04:226
3814342991816,2cyclictest4109592-21kworker/u16:4+flush-8:022:04:495
3814342991816,2cyclictest4109592-21kworker/u16:4+events_unbound23:10:065
3814344991715,2cyclictest3895218-21kworker/u16:0+flush-8:020:30:236
3814344991715,2cyclictest2453-21kworker/u16:1+flush-8:023:15:336
3814344991712,4cyclictest3866775-21latency_hist19:34:546
3814344991711,6cyclictest4051528-21kworker/u16:1+flush-8:021:20:196
3814344991711,6cyclictest298763-21kworker/u16:0+events_unbound00:20:556
3814342991715,2cyclictest3865268-21kworker/u16:3+flush-8:020:20:105
3814342991715,2cyclictest2453-21kworker/u16:1+flush-8:022:25:175
3814342991714,2cyclictest4136995-21kworker/u16:1+flush-8:021:45:005
3814338991715,2cyclictest2453-21kworker/u16:1+flush-8:023:10:114
3814347991613,2cyclictest258620-21ntp_states23:50:247
3814347991612,3cyclictest4187495-21cat22:05:127
3814344991614,2cyclictest4149497-21kworker/u16:0+events_unbound22:17:486
3814344991614,2cyclictest4149497-21kworker/u16:0+events_unbound22:08:546
3814344991614,2cyclictest4136995-21kworker/u16:1+events_unbound21:49:376
3814344991614,2cyclictest4086396-21kworker/u16:2+events_unbound21:53:366
3814344991614,2cyclictest273166-21kworker/u16:1+events_unbound23:58:486
3814342991614,2cyclictest4086396-21kworker/u16:2+flush-8:021:40:175
3814342991614,2cyclictest3865268-21kworker/u16:3+events_unbound21:19:575
3814342991614,2cyclictest314188-21kworker/u16:2+events_unbound00:39:055
3814342991614,2cyclictest2453-21kworker/u16:1+flush-8:022:30:285
3814342991613,2cyclictest298763-21kworker/u16:0+events_unbound00:30:085
3814342991613,2cyclictest298763-21kworker/u16:0+events_unbound00:30:085
3814342991613,2cyclictest174857-21kworker/u16:2+events_unbound23:49:565
3814338991614,2cyclictest4041784-21kworker/u16:0+flush-8:021:10:204
381434799150,14cyclictest78338-21turbostat22:39:547
381434799150,14cyclictest78338-21turbostat22:39:547
3814344991513,2cyclictest48818-21kworker/u16:2+flush-8:022:43:046
3814344991513,2cyclictest3774181-21kworker/u16:4+flush-8:019:35:056
3814344991513,2cyclictest314188-21kworker/u16:2+events_unbound00:27:326
3814342991513,2cyclictest4051528-21kworker/u16:1+flush-8:021:25:265
3814338991513,2cyclictest4041784-21kworker/u16:0+events_unbound21:18:114
381434799146,6cyclictest173109-21ntpq23:15:257
3814347991412,1cyclictest0-21swapper/723:45:157
3814347991412,1cyclictest0-21swapper/722:10:187
3814347991412,1cyclictest0-21swapper/719:15:197
381434799140,13cyclictest0-21swapper/720:25:177
381434799140,13cyclictest0-21swapper/720:25:177
3814344991412,2cyclictest4051528-21kworker/u16:1+events_unbound21:36:456
3814344991412,2cyclictest2453-21kworker/u16:1+flush-8:022:44:556
3814344991412,2cyclictest214942-21kworker/u16:0+events_unbound23:39:176
3814344991412,2cyclictest138461-21kworker/u16:0+events_unbound23:22:136
3814344991412,2cyclictest138461-21kworker/u16:0+events_unbound23:05:176
381434499140,1cyclictest0-21swapper/622:28:206
381434499140,1cyclictest0-21swapper/621:56:586
3814342991413,1cyclictest0-21swapper/522:57:085
3814342991413,1cyclictest0-21swapper/522:15:305
3814342991412,2cyclictest3865268-21kworker/u16:3+flush-8:021:00:215
3814342991411,2cyclictest298763-21kworker/u16:0+flush-8:000:20:115
3814342991411,2cyclictest2453-21kworker/u16:1+flush-8:022:35:085
3814342991411,2cyclictest2453-21kworker/u16:1+flush-8:022:35:085
381434299140,1cyclictest0-21swapper/523:47:065
381434299140,14cyclictest0-21swapper/500:13:165
3814338991412,2cyclictest139820-21kworker/u16:3+flush-8:023:22:194
381434799139,3cyclictest226273-21cat23:40:077
381434799139,3cyclictest1277-21snmpd20:40:257
381434799139,3cyclictest1277-21snmpd19:12:597
381434799139,3cyclictest1277-21snmpd00:15:587
381434799138,4cyclictest43026-21cat22:25:137
381434799138,4cyclictest348676-21cat00:30:097
381434799138,4cyclictest348676-21cat00:30:097
381434799138,4cyclictest299752-21cat00:10:107
3814347991311,1cyclictest4111997-21ssh21:33:147
3814347991310,2cyclictest1277-21snmpd00:39:287
381434799130,3cyclictest4149391-21ssh21:49:387
381434799130,2cyclictest99782-21ntpq22:45:247
381434799130,2cyclictest111979-21ntpq22:50:237
381434799130,12cyclictest3857054-21turbostat19:29:547
3814344991312,1cyclictest0-21swapper/622:55:556
3814344991311,2cyclictest4109592-21kworker/u16:4+events_unbound22:20:446
3814344991311,2cyclictest3929911-21kworker/u16:2+flush-8:020:15:186
3814344991311,2cyclictest298763-21kworker/u16:0+events_unbound00:35:176
3814344991311,2cyclictest274356-21kworker/u16:4+flush-8:000:15:086
3814344991311,2cyclictest274356-21kworker/u16:4+flush-8:000:11:316
3814342991312,1cyclictest0-21swapper/523:31:115
3814342991312,1cyclictest0-21swapper/522:47:495
3814342991312,1cyclictest0-21swapper/521:59:265
3814342991310,2cyclictest3774181-21kworker/u16:4+flush-8:019:20:085
381434299130,1cyclictest0-21swapper/520:44:335
381434299130,13cyclictest0-21swapper/522:13:095
381434299130,13cyclictest0-21swapper/519:55:215
381434799129,2cyclictest1277-21snmpd21:42:297
381434799129,2cyclictest1277-21snmpd00:04:097
381434799129,2cyclictest0-21swapper/723:05:237
381434799129,2cyclictest0-21swapper/721:20:127
381434799128,3cyclictest1277-21snmpd21:13:207
381434799128,3cyclictest1277-21snmpd20:47:587
381434799128,3cyclictest1277-21snmpd20:35:047
381434799128,3cyclictest1277-21snmpd20:13:097
381434799127,4cyclictest116332-21cat22:55:107
381434799125,6cyclictest6175-21gvfs-afc-volume20:30:197
381434799125,6cyclictest4032381-21turbostat20:59:557
3814347991212,0cyclictest0-21swapper/721:16:327
3814347991211,0cyclictest0-21swapper/720:01:207
3814347991210,1cyclictest163536-21ssh23:14:177
381434799120,10cyclictest1277-21snmpd23:25:357
3814344991210,2cyclictest4014508-21kworker/u16:1+flush-8:020:55:226
3814344991210,2cyclictest3809024-21kworker/u16:0+events_unbound19:28:476
3814344991210,2cyclictest200920-21kworker/u16:3+events_unbound23:42:216
3814344991210,2cyclictest174857-21kworker/u16:2+events_unbound23:26:256
381434499120,1cyclictest0-21swapper/620:10:526
381434299128,3cyclictest4004352-21cat20:45:105
3814342991211,1cyclictest0-21swapper/523:57:405
3814342991211,1cyclictest0-21swapper/521:52:015
3814342991210,2cyclictest4109592-21kworker/u16:4+events_unbound22:09:495
3814342991210,2cyclictest3895218-21kworker/u16:0+flush-8:020:35:145
3814342991210,2cyclictest298763-21kworker/u16:0+flush-8:000:19:045
381434799119,1cyclictest0-21swapper/723:00:237
381434799118,2cyclictest1277-21snmpd00:23:257
381434799117,3cyclictest1277-21snmpd21:51:217
381434799117,3cyclictest1277-21snmpd21:03:017
381434799117,3cyclictest1277-21snmpd20:16:397
381434799117,3cyclictest1277-21snmpd20:08:457
381434799117,3cyclictest1277-21snmpd19:56:037
381434799117,3cyclictest1277-21snmpd19:52:457
381434799117,3cyclictest1277-21snmpd19:30:117
381434799116,5cyclictest6175-21gvfs-afc-volume23:23:267
381434799110,9cyclictest1277-21snmpd19:41:517
381434799110,1cyclictest296744-21ssh00:06:467
381434799110,10cyclictest1277-21snmpd23:31:297
381434499119,2cyclictest86-21ksoftirqd/600:30:236
381434499119,2cyclictest86-21ksoftirqd/600:30:236
381434499119,2cyclictest3865268-21kworker/u16:3+events_unbound20:47:216
381434499119,2cyclictest3774181-21kworker/u16:4+events_unbound19:13:366
381434499110,10cyclictest4015068-21cut20:50:116
381434299119,2cyclictest3876846-21kworker/u16:2+events_unbound19:50:215
3814342991110,1cyclictest0-21swapper/523:02:105
3814342991110,1cyclictest0-21swapper/519:49:135
3814342991110,1cyclictest0-21swapper/519:17:505
381434299110,11cyclictest0-21swapper/519:33:085
381434799107,2cyclictest0-21swapper/721:25:147
381434799105,5cyclictest6275-21gmain19:20:407
381434799105,4cyclictest4162221-21rm21:55:047
381434799104,5cyclictest88608-21ssh22:41:147
381434799104,5cyclictest6175-21gvfs-afc-volume21:35:177
381434799104,4cyclictest262191-21grep23:55:077
381434799100,8cyclictest3890935-21kthreadcore19:45:137
381434499108,2cyclictest3895218-21kworker/u16:0+events_unbound20:27:196
381434499108,2cyclictest3895218-21kworker/u16:0+events_unbound20:27:196
381434299109,1cyclictest0-21swapper/523:07:135
381434299109,1cyclictest0-21swapper/520:13:015
381434299108,2cyclictest3929911-21kworker/u16:2+flush-8:020:15:225
38143429998,1cyclictest0-21swapper/522:43:345
38143429997,2cyclictest4086396-21kworker/u16:2+events_unbound21:33:065
38143429987,1cyclictest0-21swapper/520:01:305
38143429986,1cyclictest0-21swapper/519:40:075
38143429974,2cyclictest4023178-21cpuspeed_turbos20:55:075
38143429973,3cyclictest41813-21cut22:24:545
38143429972,4cyclictest237252-21awk23:44:535
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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