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2026-01-11 - 04:12
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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 Sun Jan 11, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
396774825521,30sleep70-21swapper/719:06:197
3968149994644,2cyclictest4058628-21kworker/u16:0+events_unbound21:53:025
3968157994540,4cyclictest650-21systemd-journal20:38:027
3968154994038,2cyclictest411315-21kworker/u16:3+events_unbound23:52:036
3968149994038,2cyclictest4078277-21kworker/u16:1+events_unbound21:08:035
396763523929,7sleep60-21swapper/619:04:416
3968149993836,2cyclictest178873-21kworker/u16:0+flush-8:022:33:025
396759523828,7sleep50-21swapper/519:04:085
3968154993735,2cyclictest340127-21kworker/u16:2+events_unbound23:40:006
3968154993735,2cyclictest291455-21kworker/u16:1+events_unbound23:57:006
3968154993735,2cyclictest291455-21kworker/u16:1+events_unbound23:36:316
3968154993735,2cyclictest191763-21kworker/u16:5+events_unbound22:49:236
3968149993736,1cyclictest340127-21kworker/u16:2+events_unbound23:25:565
3968149993736,1cyclictest291455-21kworker/u16:1+events_unbound23:53:045
396786023711,8sleep40-21swapper/419:07:524
3968154993634,2cyclictest425426-21kworker/u16:4+events_unbound00:21:206
3968154993634,2cyclictest278863-21kworker/u16:2+events_unbound23:09:396
3968154993634,2cyclictest191763-21kworker/u16:5+flush-8:023:15:396
3968154993634,2cyclictest131317-21kworker/u16:4+events_unbound22:29:396
3968154993532,2cyclictest4058628-21kworker/u16:0+events_unbound21:28:076
3968149993533,2cyclictest4078277-21kworker/u16:1+flush-8:020:53:205
3968149993533,2cyclictest178873-21kworker/u16:0+events_unbound22:57:595
3968154993432,2cyclictest425426-21kworker/u16:4+flush-8:000:08:396
3968154993432,2cyclictest4058628-21kworker/u16:0+events_unbound21:47:326
3968154993432,2cyclictest291455-21kworker/u16:1+flush-8:023:44:206
3968154993432,2cyclictest178873-21kworker/u16:0+events_unbound22:47:046
3968154993432,2cyclictest178873-21kworker/u16:0+events_unbound22:39:116
3968154993432,2cyclictest178873-21kworker/u16:0+events_unbound22:39:116
3968154993432,2cyclictest131317-21kworker/u16:4+events_unbound22:05:076
3968154993432,2cyclictest10967-21kworker/u16:3+events_unbound21:42:566
3968149993432,2cyclictest83732-21kworker/u16:1+events_unbound21:58:565
3968149993432,2cyclictest425426-21kworker/u16:4+events_unbound00:29:115
3968149993432,2cyclictest3904214-21kworker/u16:0+events_unbound19:13:035
3968147993432,2cyclictest291455-21kworker/u16:1+flush-8:023:34:034
3968157993332,0cyclictest0-21swapper/722:25:077
3968157993332,0cyclictest0-21swapper/700:04:147
3968154993331,2cyclictest83732-21kworker/u16:1+flush-8:021:59:436
3968154993331,2cyclictest4058628-21kworker/u16:0+flush-8:020:33:326
3968154993331,2cyclictest314255-21kworker/u16:0+events_unbound23:29:486
3968149993331,2cyclictest425426-21kworker/u16:4+events_unbound00:18:575
3968147993331,2cyclictest19730-21kworker/u16:5+events_unbound21:33:244
3968157993231,0cyclictest0-21swapper/723:21:147
3968157993231,0cyclictest0-21swapper/723:21:147
3968154993230,2cyclictest83732-21kworker/u16:1+events_unbound21:56:316
3968154993230,2cyclictest291455-21kworker/u16:1+events_unbound23:27:306
3968154993230,2cyclictest191763-21kworker/u16:5+events_unbound22:23:006
3968154993230,2cyclictest10967-21kworker/u16:3+flush-8:021:34:076
3968154993229,2cyclictest425028-21kworker/u16:0+events_unbound00:23:066
3968157993130,0cyclictest0-21swapper/722:32:317
3968154993129,2cyclictest83732-21kworker/u16:1+events_unbound21:49:236
3968154993129,2cyclictest4058628-21kworker/u16:0+events_unbound21:16:356
3968154993129,2cyclictest4058628-21kworker/u16:0+events_unbound20:14:136
3968154993129,2cyclictest278863-21kworker/u16:2+flush-8:023:06:266
3968154993129,2cyclictest129268-21kworker/u16:2+flush-8:022:13:506
3968154993128,2cyclictest425028-21kworker/u16:0+events_unbound00:33:066
3968154993128,2cyclictest411315-21kworker/u16:3+events_unbound23:58:036
3968154993128,2cyclictest4058628-21kworker/u16:0+flush-8:021:08:106
3968149993129,2cyclictest228380-21kworker/u16:1+events_unbound22:43:005
3968149993129,2cyclictest228380-21kworker/u16:1+events_unbound22:43:005
3968149993129,2cyclictest178873-21kworker/u16:0+events_unbound23:02:445
3968149993129,2cyclictest178873-21kworker/u16:0+events_unbound22:48:325
3968149993129,2cyclictest131317-21kworker/u16:4+events_unbound22:13:045
3968147993129,2cyclictest178873-21kworker/u16:0+events_unbound22:28:324
3968157993029,0cyclictest0-21swapper/700:15:597
3968154993028,2cyclictest425028-21kworker/u16:0+flush-8:000:16:146
3968154993028,2cyclictest4078277-21kworker/u16:1+events_unbound20:52:126
3968154993028,2cyclictest3844074-21kworker/u16:5+flush-8:019:53:366
3968154993028,2cyclictest191763-21kworker/u16:5+events_unbound23:00:266
3968154993028,2cyclictest129268-21kworker/u16:2+events_unbound22:12:156
3968154993027,3cyclictest291455-21kworker/u16:1+events_unbound23:22:256
3968154993027,3cyclictest291455-21kworker/u16:1+events_unbound23:22:256
3968149993028,2cyclictest4058628-21kworker/u16:0+events_unbound20:08:025
3968149993028,2cyclictest291455-21kworker/u16:1+events_unbound23:07:125
3968149993028,2cyclictest19730-21kworker/u16:5+events_unbound21:32:295
3968149993028,2cyclictest191763-21kworker/u16:5+flush-8:023:20:165
3968149993028,2cyclictest191763-21kworker/u16:5+flush-8:023:20:165
3968149993028,2cyclictest10967-21kworker/u16:3+events_unbound21:36:295
3968154992927,2cyclictest425469-21kworker/u16:5+flush-8:000:04:386
3968154992927,2cyclictest4078277-21kworker/u16:1+events_unbound20:38:356
3968154992927,2cyclictest3844074-21kworker/u16:5+events_unbound20:53:266
3968154992927,2cyclictest3844074-21kworker/u16:5+events_unbound20:20:366
3968154992927,2cyclictest19730-21kworker/u16:5+events_unbound21:19:186
3968154992927,2cyclictest10967-21kworker/u16:3+events_unbound21:27:506
3968149992927,2cyclictest425028-21kworker/u16:0+events_unbound00:36:565
3968149992927,2cyclictest291455-21kworker/u16:1+events_unbound23:45:445
3968149992927,2cyclictest291455-21kworker/u16:1+events_unbound23:38:245
3968149992927,2cyclictest19730-21kworker/u16:5+events_unbound21:21:485
3968149992927,2cyclictest131317-21kworker/u16:4+events_unbound22:26:005
3968147992927,2cyclictest228380-21kworker/u16:1+events_unbound22:47:574
3968157992827,1cyclictest362737-21ssh23:30:317
3968157992827,0cyclictest0-21swapper/719:57:247
3968157992825,2cyclictest96-21ksoftirqd/722:04:147
3968154992826,2cyclictest4058628-21kworker/u16:0+events_unbound20:11:136
3968154992826,2cyclictest254566-21kworker/u16:3+events_unbound22:55:506
3968154992826,2cyclictest228380-21kworker/u16:1+events_unbound22:35:156
3968154992826,2cyclictest131317-21kworker/u16:4+events_unbound22:26:196
3968149992826,2cyclictest425469-21kworker/u16:5+events_unbound00:09:445
3968149992826,2cyclictest425028-21kworker/u16:0+events_unbound00:15:365
3968149992826,2cyclictest129268-21kworker/u16:2+flush-8:021:53:445
3968149992826,2cyclictest129268-21kworker/u16:2+events_unbound22:08:215
3968149992825,2cyclictest83732-21kworker/u16:1+flush-8:021:38:135
3968149992825,2cyclictest228380-21kworker/u16:1+flush-8:022:43:225
3968147992826,2cyclictest131317-21kworker/u16:4+events_unbound22:03:204
3968147992825,2cyclictest83732-21kworker/u16:1+events_unbound21:43:144
3968147992825,2cyclictest131317-21kworker/u16:4+events_unbound22:18:054
3968157992727,0cyclictest0-21swapper/700:34:457
3968157992726,0cyclictest0-21swapper/700:26:197
3968157992725,1cyclictest193436-21ssh22:22:587
3968154992725,2cyclictest495816-21kworker/u16:2+events_unbound00:29:216
3968154992725,2cyclictest3981892-21kworker/u16:1+events_unbound19:15:416
3968149992725,2cyclictest278863-21kworker/u16:2+events_unbound23:10:205
3968149992725,2cyclictest131317-21kworker/u16:4+events_unbound22:19:295
3968147992725,2cyclictest83732-21kworker/u16:1+events_unbound21:57:554
3968147992725,2cyclictest425028-21kworker/u16:0+flush-8:000:32:484
3968157992624,1cyclictest20517-21ssh21:09:027
3968157992620,5cyclictest650-21systemd-journal22:43:027
3968157992620,5cyclictest650-21systemd-journal22:43:027
396815799260,24cyclictest4058939-21latency_hist19:53:027
3968154992624,2cyclictest3981892-21kworker/u16:1+events_unbound19:32:246
3968149992624,2cyclictest425028-21kworker/u16:0+events_unbound23:58:445
3968149992624,2cyclictest4058628-21kworker/u16:0+flush-8:021:24:445
3968149992624,2cyclictest314255-21kworker/u16:0+events_unbound23:32:485
3968149992624,2cyclictest19730-21kworker/u16:5+flush-8:021:13:485
3968149992624,2cyclictest191763-21kworker/u16:5+events_unbound23:15:565
3968147992624,2cyclictest4058628-21kworker/u16:0+flush-8:020:43:304
3968157992525,0cyclictest0-21swapper/723:33:497
3968157992525,0cyclictest0-21swapper/723:12:207
3968157992524,0cyclictest0-21swapper/720:04:447
3968157992524,0cyclictest0-21swapper/719:12:377
3968154992523,2cyclictest4058628-21kworker/u16:0+events_unbound20:24:286
3968154992523,2cyclictest3844074-21kworker/u16:5+events_unbound19:42:246
3968149992523,2cyclictest314255-21kworker/u16:0+events_unbound23:34:205
3968149992523,2cyclictest228380-21kworker/u16:1+events_unbound22:37:365
3968149992523,2cyclictest10967-21kworker/u16:3+events_unbound21:45:275
3968147992523,2cyclictest254566-21kworker/u16:3+events_unbound22:53:254
3968157992424,0cyclictest0-21swapper/722:55:347
3968157992423,0cyclictest0-21swapper/721:44:067
3968157992423,0cyclictest0-21swapper/721:07:117
3968157992423,0cyclictest0-21swapper/720:55:527
3968157992423,0cyclictest0-21swapper/719:40:327
3968154992422,2cyclictest4184858-21kworker/u16:2+events_unbound21:01:136
3968154992422,2cyclictest3904214-21kworker/u16:0+events_unbound19:12:166
3968154992422,2cyclictest3844074-21kworker/u16:5+flush-8:019:25:166
3968147992422,2cyclictest83732-21kworker/u16:1+events_unbound21:48:274
3968147992422,2cyclictest4058628-21kworker/u16:0+events_unbound19:58:024
3968147992422,2cyclictest3844074-21kworker/u16:5+flush-8:019:23:314
3968147992422,2cyclictest291455-21kworker/u16:1+flush-8:023:48:314
3968147992422,2cyclictest178873-21kworker/u16:0+events_unbound23:01:444
3968147992421,2cyclictest3904214-21kworker/u16:0+flush-8:019:08:144
3968157992322,0cyclictest0-21swapper/721:16:277
3968157992322,0cyclictest0-21swapper/720:24:397
3968157992322,0cyclictest0-21swapper/720:22:597
3968157992319,3cyclictest93800-21ssh21:39:147
3968157992319,3cyclictest83129-21ssh21:37:017
3968157992319,3cyclictest434854-21ssh23:58:407
3968154992321,2cyclictest4058628-21kworker/u16:0+flush-8:020:01:176
3968154992321,2cyclictest4058628-21kworker/u16:0+events_unbound20:45:176
3968149992321,2cyclictest495816-21kworker/u16:2+events_unbound00:23:395
3968149992321,2cyclictest411315-21kworker/u16:3+events_unbound23:51:325
3968147992321,2cyclictest411315-21kworker/u16:3+events_unbound23:58:014
3968147992321,2cyclictest178873-21kworker/u16:0+events_unbound22:38:564
3968147992321,2cyclictest178873-21kworker/u16:0+events_unbound22:38:564
3968147992321,2cyclictest129268-21kworker/u16:2+flush-8:021:59:124
3968147992320,2cyclictest10967-21kworker/u16:3+events_unbound21:13:224
3968157992222,0cyclictest0-21swapper/721:25:157
3968154992220,2cyclictest4184858-21kworker/u16:2+events_unbound21:06:206
3968149992220,2cyclictest425469-21kworker/u16:5+events_unbound00:04:475
3968149992220,2cyclictest3844074-21kworker/u16:5+flush-8:020:13:185
3968149992220,2cyclictest129268-21kworker/u16:2+events_unbound22:04:035
3968149992220,2cyclictest10967-21kworker/u16:3+events_unbound21:10:165
3968149992219,2cyclictest3844074-21kworker/u16:5+events_unbound20:08:255
3968147992220,2cyclictest178873-21kworker/u16:0+flush-8:022:27:444
3968147992219,3cyclictest425028-21kworker/u16:0+flush-8:000:18:214
3968157992120,0cyclictest0-21swapper/719:26:017
3968157992119,1cyclictest227996-21ssh22:34:187
3968157992119,1cyclictest0-21swapper/721:29:257
3968157992118,1cyclictest0-21swapper/719:13:137
3968154992119,2cyclictest4058628-21kworker/u16:0+events_unbound20:07:196
3968149992118,2cyclictest3844074-21kworker/u16:5+flush-8:019:43:305
3968147992119,2cyclictest314255-21kworker/u16:0+events_unbound23:47:574
3968147992119,2cyclictest10967-21kworker/u16:3+flush-8:021:28:134
3968147992118,3cyclictest4058628-21kworker/u16:0+events_unbound20:23:264
3968147992118,2cyclictest278863-21kworker/u16:2+events_unbound23:08:134
3968157992020,0cyclictest0-21swapper/722:02:277
3968157992020,0cyclictest0-21swapper/721:50:487
3968157992019,1cyclictest0-21swapper/723:51:107
3968157992019,0cyclictest0-21swapper/720:32:007
3968157992019,0cyclictest0-21swapper/719:47:527
3968147992018,2cyclictest425028-21kworker/u16:0+events_unbound00:37:594
3968147992018,2cyclictest340127-21kworker/u16:2+events_unbound23:31:444
3968147992018,2cyclictest254566-21kworker/u16:3+events_unbound22:50:454
3968147992018,2cyclictest191763-21kworker/u16:5+events_unbound23:03:314
3968147992018,2cyclictest10967-21kworker/u16:3+events_unbound21:39:004
3968147992017,2cyclictest3981892-21kworker/u16:1+flush-8:019:33:134
3968147992017,2cyclictest291455-21kworker/u16:1+events_unbound23:23:044
3968157991919,0cyclictest0-21swapper/723:44:007
3968157991919,0cyclictest0-21swapper/723:39:287
3968157991919,0cyclictest0-21swapper/721:55:427
3968157991917,1cyclictest10542-21diskmemload21:22:317
3968157991914,4cyclictest327569-21latency_hist23:18:027
3968154991917,2cyclictest4039574-21kworker/u16:2+flush-8:019:51:336
3968154991917,2cyclictest3844074-21kworker/u16:5+flush-8:019:21:376
3968149991917,2cyclictest3904548-21kworker/u16:3+events_unbound19:28:255
3968147991917,2cyclictest291455-21kworker/u16:1+flush-8:023:13:034
3968147991917,2cyclictest178873-21kworker/u16:0+events_unbound22:16:004
3968147991917,2cyclictest10967-21kworker/u16:3+events_unbound21:09:454
3968157991818,0cyclictest0-21swapper/723:23:517
3968157991818,0cyclictest0-21swapper/722:49:417
3968157991818,0cyclictest0-21swapper/720:01:197
3968157991817,0cyclictest0-21swapper/720:44:447
3968154991816,2cyclictest3844074-21kworker/u16:5+flush-8:019:35:416
3968154991816,2cyclictest3844074-21kworker/u16:5+events_unbound19:45:296
3968149991816,2cyclictest3904548-21kworker/u16:3+flush-8:019:22:585
3968149991816,2cyclictest3904214-21kworker/u16:0+events_unbound19:08:175
3968147991816,2cyclictest3844074-21kworker/u16:5+events_unbound20:03:324
3968147991816,2cyclictest228380-21kworker/u16:1+flush-8:022:37:074
3968147991816,2cyclictest129268-21kworker/u16:2+flush-8:022:08:564
396815799178,8cyclictest0-21swapper/700:28:217
3968157991716,0cyclictest0-21swapper/721:02:227
3968157991716,0cyclictest0-21swapper/720:50:127
3968157991716,0cyclictest0-21swapper/720:42:517
3968157991716,0cyclictest0-21swapper/719:18:287
3968149991715,2cyclictest4078277-21kworker/u16:1+flush-8:020:43:285
3968149991715,2cyclictest4058628-21kworker/u16:0+events_unbound20:48:215
3968149991714,2cyclictest3981892-21kworker/u16:1+events_unbound19:38:135
3968147991715,2cyclictest340127-21kworker/u16:2+events_unbound23:40:124
3968147991715,2cyclictest19730-21kworker/u16:5+events_unbound21:22:254
3968147991714,2cyclictest10967-21kworker/u16:3+events_unbound21:25:094
3968157991615,0cyclictest0-21swapper/722:13:137
3968157991615,0cyclictest0-21swapper/720:11:317
3968157991615,0cyclictest0-21swapper/719:34:317
3968157991614,1cyclictest167678-21ssh22:10:287
3968154991614,2cyclictest4039574-21kworker/u16:2+events_unbound20:30:536
3968149991614,2cyclictest4058628-21kworker/u16:0+events_unbound19:53:245
3968149991614,2cyclictest3981892-21kworker/u16:1+flush-8:019:48:195
3968149991613,2cyclictest4135279-21ntpq20:28:255
3968147991614,2cyclictest425028-21kworker/u16:0+flush-8:023:58:194
3968147991614,2cyclictest3904548-21kworker/u16:3+flush-8:019:28:264
3968147991613,2cyclictest470934-21sensors_temp00:13:294
3968147991613,2cyclictest425426-21kworker/u16:4+flush-8:000:08:034
396814799160,15cyclictest336619-21ntpq23:18:284
396814799160,15cyclictest336619-21ntpq23:18:284
396815799157,7cyclictest0-21swapper/700:08:217
396815799156,7cyclictest0-21swapper/700:18:197
396815799154,9cyclictest0-21swapper/723:53:227
3968157991511,3cyclictest1267-21snmpd19:30:087
3968147991514,1cyclictest425469-21kworker/u16:5+events_unbound00:05:284
3968147991513,2cyclictest425426-21kworker/u16:4+flush-8:000:23:304
3968147991513,2cyclictest3981892-21kworker/u16:1+flush-8:019:38:154
3968147991513,2cyclictest3981892-21kworker/u16:1+events_unbound19:13:204
3968147991513,2cyclictest3844074-21kworker/u16:5+events_unbound19:18:294
3968147991512,2cyclictest4039574-21kworker/u16:2+flush-8:020:28:214
396815799145,8cyclictest0-21swapper/723:03:227
396815799140,1cyclictest0-21swapper/720:13:287
3968147991412,2cyclictest3981892-21kworker/u16:1+flush-8:019:48:294
3968147991412,2cyclictest3844074-21kworker/u16:5+events_unbound20:18:334
396814799140,14cyclictest0-21swapper/420:58:184
396815799136,6cyclictest0-21swapper/722:58:157
396815799136,6cyclictest0-21swapper/722:43:227
3968149991311,2cyclictest4184858-21kworker/u16:2+events_unbound20:58:235
3968149991311,2cyclictest4058628-21kworker/u16:0+events_unbound19:59:495
3968147991312,1cyclictest0-21swapper/419:43:254
3968147991311,2cyclictest4058628-21kworker/u16:0+events_unbound20:48:174
3968147991311,2cyclictest3844074-21kworker/u16:5+flush-8:020:33:234
3968149991211,1cyclictest0-21swapper/519:33:245
3968149991210,2cyclictest4078277-21kworker/u16:1+flush-8:020:42:245
3968149991210,2cyclictest4058628-21kworker/u16:0+flush-8:020:23:285
3968149991210,2cyclictest3844074-21kworker/u16:5+flush-8:020:18:315
396814799129,2cyclictest4078277-21kworker/u16:1+events_unbound20:38:154
396814999119,2cyclictest3844074-21kworker/u16:5+flush-8:019:23:165
396814999119,2cyclictest3844074-21kworker/u16:5+events_unbound20:33:265
396814799110,11cyclictest0-21swapper/420:54:224
396814799110,11cyclictest0-21swapper/420:10:044
39681479998,1cyclictest0-21swapper/420:14:384
39681479983,4cyclictest4069770-21cat19:58:194
39681479975,1cyclictest0-21swapper/421:03:154
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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