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2026-05-09 - 01:32
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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 Sat May 09, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
390735125848,7sleep40-21swapper/419:07:524
3907696995653,2cyclictest297740-21kworker/u16:1+flush-8:000:08:394
389818425342,7sleep50-21swapper/519:03:275
3907696995250,2cyclictest310695-21kworker/u16:2+events_unbound00:03:504
3907699994846,2cyclictest345928-21kworker/u16:0+events_unbound00:28:415
3907696994745,2cyclictest4036473-21kworker/u16:4+flush-8:020:18:504
3907705994640,5cyclictest4154185-21latency_hist21:13:247
3907705994640,5cyclictest4154185-21latency_hist21:13:247
3907699994543,2cyclictest310695-21kworker/u16:2+flush-8:000:03:375
3907699994542,2cyclictest345928-21kworker/u16:0+events_unbound00:13:265
3907699994442,2cyclictest360564-21kworker/u16:3+flush-8:000:18:535
3907696994240,2cyclictest118306-21kworker/u16:2+flush-8:023:03:484
39071882423,34sleep70-21swapper/719:05:387
3907699994139,2cyclictest345928-21kworker/u16:0+events_unbound00:34:035
3907699994139,2cyclictest345928-21kworker/u16:0+events_unbound00:34:035
3907696994038,2cyclictest310695-21kworker/u16:2+events_unbound23:48:184
3907700993937,2cyclictest3834554-21kworker/u16:4+events_unbound19:53:396
3907705993832,5cyclictest239351-21latency_hist23:08:247
3907699993836,2cyclictest360564-21kworker/u16:3+events_unbound00:01:025
3907699993836,2cyclictest360564-21kworker/u16:3+events_unbound00:01:025
3907699993836,2cyclictest310695-21kworker/u16:2+events_unbound23:51:395
3907699993836,2cyclictest310695-21kworker/u16:2+events_unbound00:10:465
3907699993836,2cyclictest118308-21kworker/u16:5+events_unbound23:01:235
3907699993735,2cyclictest4178552-21kworker/u16:3+events_unbound22:00:115
3907699993735,2cyclictest4141084-21kworker/u16:4+events_unbound22:07:025
3907699993735,2cyclictest4141084-21kworker/u16:4+events_unbound21:45:305
3907699993735,2cyclictest345928-21kworker/u16:0+events_unbound23:55:225
3907699993735,2cyclictest227242-21kworker/u16:0+events_unbound23:04:235
3907699993634,2cyclictest45997-21kworker/u16:1+events_unbound22:21:395
3907699993634,2cyclictest4084837-21kworker/u16:0+events_unbound21:10:395
3907699993634,2cyclictest4084837-21kworker/u16:0+events_unbound21:10:395
3907699993634,2cyclictest360564-21kworker/u16:3+events_unbound00:28:065
3907699993634,2cyclictest263973-21kworker/u16:3+events_unbound23:46:225
3907699993634,2cyclictest227242-21kworker/u16:0+events_unbound23:32:185
3907699993634,2cyclictest118308-21kworker/u16:5+events_unbound22:54:355
3907699993634,2cyclictest118306-21kworker/u16:2+events_unbound22:52:425
3907696993634,2cyclictest345928-21kworker/u16:0+flush-8:000:23:524
3907699993533,2cyclictest45997-21kworker/u16:1+events_unbound22:14:435
3907699993533,2cyclictest4178552-21kworker/u16:3+events_unbound21:38:595
3907699993533,2cyclictest4084837-21kworker/u16:0+events_unbound20:48:245
3907699993533,2cyclictest3834554-21kworker/u16:4+events_unbound19:50:355
3907699993533,2cyclictest227242-21kworker/u16:0+events_unbound23:21:025
3907699993533,2cyclictest227242-21kworker/u16:0+events_unbound23:21:025
3907699993533,2cyclictest118308-21kworker/u16:5+events_unbound22:25:225
3907699993533,2cyclictest118306-21kworker/u16:2+events_unbound22:31:025
3907696993533,2cyclictest297740-21kworker/u16:1+flush-8:023:58:504
3907696993533,2cyclictest297740-21kworker/u16:1+flush-8:023:58:504
3907696993533,2cyclictest118308-21kworker/u16:5+events_unbound23:09:184
3907699993432,2cyclictest45997-21kworker/u16:1+events_unbound21:52:305
3907699993432,2cyclictest4141084-21kworker/u16:4+events_unbound22:13:075
3907699993432,2cyclictest4141084-21kworker/u16:4+events_unbound21:32:595
3907699993432,2cyclictest239812-21kworker/u16:1+events_unbound23:15:555
3907699993432,2cyclictest118308-21kworker/u16:5+events_unbound23:24:075
3907696993432,2cyclictest310695-21kworker/u16:2+flush-8:023:48:554
3907696993432,2cyclictest263973-21kworker/u16:3+events_unbound23:41:534
3907696993432,2cyclictest118308-21kworker/u16:5+events_unbound22:58:024
3907699993331,2cyclictest4178552-21kworker/u16:3+events_unbound21:56:115
3907699993331,2cyclictest4141084-21kworker/u16:4+events_unbound21:24:595
3907699993331,2cyclictest297740-21kworker/u16:1+flush-8:023:34:145
3907699993331,2cyclictest118308-21kworker/u16:5+events_unbound23:10:315
3907699993331,2cyclictest118306-21kworker/u16:2+events_unbound22:36:545
3907699993331,2cyclictest118306-21kworker/u16:2+events_unbound22:36:545
3907696993331,2cyclictest118308-21kworker/u16:5+events_unbound23:25:024
3907699993230,2cyclictest4178552-21kworker/u16:3+events_unbound21:37:355
3907699993230,2cyclictest167152-21kworker/u16:0+events_unbound22:39:545
3907699993230,2cyclictest118306-21kworker/u16:2+events_unbound22:44:025
3907696993230,2cyclictest345928-21kworker/u16:0+events_unbound00:28:454
3907696993230,2cyclictest310695-21kworker/u16:2+events_unbound00:15:224
3907696993230,2cyclictest227242-21kworker/u16:0+events_unbound23:19:184
3907696993230,2cyclictest227242-21kworker/u16:0+events_unbound23:19:184
3907696993230,2cyclictest167152-21kworker/u16:0+events_unbound22:39:344
3907696993230,2cyclictest118308-21kworker/u16:5+events_unbound23:29:014
3907705993129,1cyclictest0-21swapper/723:42:577
3907705993128,2cyclictest4054695-21ntpq20:18:507
3907700993129,2cyclictest4178552-21kworker/u16:3+events_unbound21:43:196
3907699993129,2cyclictest4141084-21kworker/u16:4+events_unbound21:20:435
3907699993129,2cyclictest4132209-21kworker/u16:1+flush-8:021:16:225
3907699993129,2cyclictest263973-21kworker/u16:3+events_unbound23:39:185
3907696993130,1cyclictest4141084-21kworker/u16:4+events_unbound21:30:274
3907696993129,2cyclictest45997-21kworker/u16:1+flush-8:022:02:074
3907696993129,2cyclictest4178552-21kworker/u16:3+events_unbound21:58:184
3907696993129,2cyclictest4178552-21kworker/u16:3+events_unbound21:40:394
3907696993129,2cyclictest4141084-21kworker/u16:4+events_unbound21:27:064
3907696993129,2cyclictest360564-21kworker/u16:3+events_unbound00:19:064
3907696993129,2cyclictest118306-21kworker/u16:2+events_unbound22:37:234
3907696993129,2cyclictest118306-21kworker/u16:2+events_unbound22:37:234
3907705993029,0cyclictest0-21swapper/723:53:017
3907699993028,2cyclictest4055647-21kworker/u16:1+events_unbound20:34:395
3907696993028,2cyclictest4141084-21kworker/u16:4+flush-8:022:08:554
3907696993028,2cyclictest4141084-21kworker/u16:4+flush-8:022:06:024
3907696993028,2cyclictest4084837-21kworker/u16:0+events_unbound21:14:594
3907696993028,2cyclictest4084837-21kworker/u16:0+events_unbound21:10:234
3907696993028,2cyclictest4084837-21kworker/u16:0+events_unbound21:10:234
3907696993028,2cyclictest345928-21kworker/u16:0+events_unbound23:57:274
3907696993028,2cyclictest239812-21kworker/u16:1+events_unbound23:16:464
3907696993028,2cyclictest227242-21kworker/u16:0+events_unbound23:37:074
3907696993028,2cyclictest118308-21kworker/u16:5+events_unbound22:49:304
3907696993028,2cyclictest118306-21kworker/u16:2+flush-8:023:02:424
3907705992928,0cyclictest0-21swapper/721:39:467
3907705992928,0cyclictest0-21swapper/719:33:257
3907700992927,2cyclictest118308-21kworker/u16:5+events_unbound23:28:476
3907699992927,2cyclictest3834554-21kworker/u16:4+events_unbound19:13:475
3907696992927,2cyclictest45997-21kworker/u16:1+flush-8:021:50:104
3907705992827,0cyclictest0-21swapper/722:42:547
3907705992827,0cyclictest0-21swapper/721:25:057
3907705992827,0cyclictest0-21swapper/720:52:037
3907700992826,2cyclictest3834554-21kworker/u16:4+events_unbound19:33:376
3907699992826,2cyclictest4016761-21kworker/u16:0+events_unbound20:19:525
3907696992826,2cyclictest45997-21kworker/u16:1+events_unbound22:30:034
3907696992826,2cyclictest118306-21kworker/u16:2+events_unbound22:24:274
3907705992726,0cyclictest0-21swapper/720:41:387
3907705992726,0cyclictest0-21swapper/700:16:057
3907700992725,2cyclictest118306-21kworker/u16:2+events_unbound22:33:506
3907700992725,2cyclictest118306-21kworker/u16:2+events_unbound22:33:506
3907696992725,2cyclictest4141084-21kworker/u16:4+events_unbound21:44:554
3907696992725,2cyclictest360564-21kworker/u16:3+flush-8:000:35:224
3907696992725,2cyclictest360564-21kworker/u16:3+flush-8:000:35:224
3907696992725,2cyclictest188405-21kworker/u16:1+events_unbound22:45:224
3907705992625,0cyclictest0-21swapper/723:38:007
3907705992625,0cyclictest0-21swapper/723:09:527
3907705992625,0cyclictest0-21swapper/721:21:327
3907705992625,0cyclictest0-21swapper/720:14:397
3907705992625,0cyclictest0-21swapper/720:12:467
3907705992624,1cyclictest0-21swapper/722:32:067
3907705992622,3cyclictest436411-21kthreadcore00:28:437
3907705992621,4cyclictest1025-21runrttasks21:37:027
3907700992624,2cyclictest118306-21kworker/u16:2+events_unbound22:20:076
3907699992624,2cyclictest4084837-21kworker/u16:0+events_unbound20:55:595
3907699992624,2cyclictest4016761-21kworker/u16:0+events_unbound20:15:155
390722722616,7sleep60-21swapper/619:06:096
2986172260,1chrt298615-21ssh23:31:017
3907705992524,0cyclictest0-21swapper/722:01:207
3907705992524,0cyclictest0-21swapper/721:16:387
3907705992524,0cyclictest0-21swapper/720:34:477
3907705992524,0cyclictest0-21swapper/720:29:367
3907705992524,0cyclictest0-21swapper/720:29:367
3907705992524,0cyclictest0-21swapper/719:18:067
3907705992524,0cyclictest0-21swapper/700:38:137
3907705992524,0cyclictest0-21swapper/700:38:137
3907705992524,0cyclictest0-21swapper/700:06:217
3907705992519,5cyclictest360505-21latency_hist23:58:237
3907699992523,2cyclictest3834554-21kworker/u16:4+events_unbound19:58:075
3907696992523,2cyclictest4132209-21kworker/u16:1+events_unbound21:18:594
3907696992523,2cyclictest18067-21kworker/u16:1+events_unbound21:37:474
3907705992423,0cyclictest0-21swapper/722:13:127
3907705992423,0cyclictest0-21swapper/719:57:477
3907705992423,0cyclictest0-21swapper/700:12:167
3907699992422,2cyclictest4026941-21kworker/u16:3+events_unbound20:10:395
3907696992422,2cyclictest4026941-21kworker/u16:3+flush-8:020:10:504
3907696992422,2cyclictest3834554-21kworker/u16:4+events_unbound19:48:424
3907696992422,2cyclictest31144-21kworker/u16:0+events_unbound22:14:334
3907696992421,2cyclictest4084837-21kworker/u16:0+events_unbound20:48:264
3907705992322,0cyclictest0-21swapper/720:45:427
3907705992322,0cyclictest0-21swapper/720:06:487
3907705992322,0cyclictest0-21swapper/719:47:227
3907705992320,2cyclictest226184-21sh23:01:317
3907699992321,2cyclictest4016761-21kworker/u16:0+events_unbound20:29:545
3907699992321,2cyclictest4016761-21kworker/u16:0+events_unbound20:29:545
3907705992221,0cyclictest0-21swapper/723:25:167
3907705992221,0cyclictest0-21swapper/722:24:067
3907705992221,0cyclictest0-21swapper/722:23:137
3907705992221,0cyclictest0-21swapper/722:14:007
3907705992221,0cyclictest0-21swapper/721:02:507
3907705992221,0cyclictest0-21swapper/719:52:277
3907705992221,0cyclictest0-21swapper/719:41:287
3907705992221,0cyclictest0-21swapper/719:29:527
3907705992221,0cyclictest0-21swapper/700:21:337
3907700992220,2cyclictest4178552-21kworker/u16:3+events_unbound21:37:556
3907700992220,2cyclictest3879050-21kworker/u16:0+events_unbound19:23:496
3907700992220,2cyclictest345928-21kworker/u16:0+events_unbound00:34:236
3907700992220,2cyclictest345928-21kworker/u16:0+events_unbound00:34:236
3907700992220,2cyclictest263973-21kworker/u16:3+events_unbound23:47:466
3907699992220,2cyclictest4055647-21kworker/u16:1+events_unbound20:25:345
3907699992220,2cyclictest3988648-21kworker/u16:2+events_unbound20:04:475
3907696992220,2cyclictest3834554-21kworker/u16:4+events_unbound19:21:344
3907705992120,0cyclictest0-21swapper/723:45:297
3907705992120,0cyclictest0-21swapper/723:13:287
3907705992120,0cyclictest0-21swapper/722:34:087
3907705992120,0cyclictest0-21swapper/722:34:087
3907705992120,0cyclictest0-21swapper/721:30:437
3907700992119,2cyclictest4055647-21kworker/u16:1+events_unbound20:38:496
3907700992119,2cyclictest360564-21kworker/u16:3+events_unbound00:07:586
3907700992119,2cyclictest297740-21kworker/u16:1+events_unbound23:34:196
3907700992119,2cyclictest263973-21kworker/u16:3+events_unbound23:22:146
3907700992119,2cyclictest263973-21kworker/u16:3+events_unbound23:22:146
3907700992119,2cyclictest239812-21kworker/u16:1+events_unbound23:11:276
3907700992119,2cyclictest227242-21kworker/u16:0+events_unbound23:14:436
3907700992118,2cyclictest4178552-21kworker/u16:3+events_unbound21:28:266
3907696992119,2cyclictest45997-21kworker/u16:1+flush-8:022:18:544
3907705992019,0cyclictest0-21swapper/722:49:447
3907705992019,0cyclictest0-21swapper/720:25:207
3907705992019,0cyclictest0-21swapper/719:20:277
3907705992018,1cyclictest0-21swapper/722:46:147
3907700992018,2cyclictest45997-21kworker/u16:1+events_unbound21:53:216
3907700992018,2cyclictest360564-21kworker/u16:3+events_unbound00:00:076
3907700992018,2cyclictest360564-21kworker/u16:3+events_unbound00:00:076
3907700992018,2cyclictest31144-21kworker/u16:0+events_unbound22:11:436
3907700992018,2cyclictest310695-21kworker/u16:2+events_unbound23:57:076
3907700992018,2cyclictest310695-21kworker/u16:2+events_unbound23:50:036
3907700992018,2cyclictest310695-21kworker/u16:2+events_unbound00:09:346
3907700992018,2cyclictest227242-21kworker/u16:0+events_unbound23:24:276
3907700992018,2cyclictest118308-21kworker/u16:5+events_unbound22:55:146
3907700992018,2cyclictest118308-21kworker/u16:5+events_unbound22:25:596
3907700992018,2cyclictest118306-21kworker/u16:2+events_unbound23:01:066
3907699992018,2cyclictest4132209-21kworker/u16:1+events_unbound21:01:395
3907699992018,2cyclictest3834554-21kworker/u16:4+events_unbound19:39:445
3907696992018,2cyclictest3879050-21kworker/u16:0+events_unbound19:23:394
3907705991918,0cyclictest0-21swapper/723:22:197
3907705991918,0cyclictest0-21swapper/723:22:197
3907705991918,0cyclictest0-21swapper/722:56:137
3907700991917,2cyclictest4132209-21kworker/u16:1+events_unbound21:17:026
3907700991917,2cyclictest360564-21kworker/u16:3+events_unbound00:26:466
3907700991917,2cyclictest31144-21kworker/u16:0+events_unbound22:13:546
3907700991917,2cyclictest310695-21kworker/u16:2+events_unbound00:22:066
3907700991917,2cyclictest263973-21kworker/u16:3+events_unbound23:42:346
3907696991917,2cyclictest4084837-21kworker/u16:0+events_unbound20:58:554
3907696991917,2cyclictest4074628-21kworker/u16:2+events_unbound20:55:384
3907696991917,2cyclictest3959391-21kworker/u16:1+events_unbound20:01:344
3907696991916,2cyclictest3988648-21kworker/u16:2+events_unbound20:13:274
3907705991817,0cyclictest0-21swapper/719:24:007
3907700991816,2cyclictest4178552-21kworker/u16:3+events_unbound21:59:426
3907700991816,2cyclictest4178552-21kworker/u16:3+events_unbound21:54:186
3907700991816,2cyclictest4084837-21kworker/u16:0+events_unbound21:12:426
3907700991816,2cyclictest4084837-21kworker/u16:0+events_unbound21:12:426
3907700991816,2cyclictest3823900-21kworker/u16:2+events_unbound19:33:196
3907700991816,2cyclictest360564-21kworker/u16:3+events_unbound00:30:346
3907700991816,2cyclictest31144-21kworker/u16:0+events_unbound22:06:506
3907700991816,2cyclictest188405-21kworker/u16:1+events_unbound22:45:436
3907700991816,2cyclictest167152-21kworker/u16:0+events_unbound22:41:106
3907699991816,2cyclictest4084837-21kworker/u16:0+events_unbound21:06:235
3907699991816,2cyclictest3823900-21kworker/u16:2+events_unbound19:31:445
3907699991816,2cyclictest3823900-21kworker/u16:2+events_unbound19:08:485
3907696991816,2cyclictest4016761-21kworker/u16:0+events_unbound20:24:394
3907696991816,2cyclictest3834554-21kworker/u16:4+flush-8:019:56:304
3907705991716,0cyclictest0-21swapper/720:54:377
3907705991716,0cyclictest0-21swapper/719:12:187
390770599170,16cyclictest0-21swapper/721:03:477
3907700991715,2cyclictest4178552-21kworker/u16:3+events_unbound21:45:406
3907700991715,2cyclictest4141084-21kworker/u16:4+events_unbound21:21:356
3907700991715,2cyclictest3834554-21kworker/u16:4+events_unbound19:48:246
3907700991715,2cyclictest310695-21kworker/u16:2+events_unbound00:15:576
3907700991715,2cyclictest118308-21kworker/u16:5+events_unbound22:49:186
3907696991715,2cyclictest4103288-21kworker/u16:3+events_unbound20:45:344
3907705991615,0cyclictest0-21swapper/723:59:427
3907705991615,0cyclictest0-21swapper/723:59:427
3907700991614,2cyclictest4084837-21kworker/u16:0+events_unbound21:24:416
3907700991614,2cyclictest4084837-21kworker/u16:0+events_unbound20:51:166
3907700991614,2cyclictest4016761-21kworker/u16:0+events_unbound20:00:356
3907700991614,2cyclictest3879050-21kworker/u16:0+flush-8:019:14:216
3907700991614,2cyclictest227242-21kworker/u16:0+events_unbound23:05:186
3907700991614,2cyclictest118306-21kworker/u16:2+events_unbound22:32:086
3907699991614,2cyclictest3834554-21kworker/u16:4+events_unbound19:36:475
3907699991614,2cyclictest3823900-21kworker/u16:2+flush-8:019:21:415
3907696991614,2cyclictest3879050-21kworker/u16:0+flush-8:019:17:154
3907696991614,2cyclictest3823900-21kworker/u16:2+events_unbound19:11:164
3907705991513,1cyclictest46624-21ssh21:48:367
390770599150,14cyclictest0-21swapper/721:44:327
3907700991513,2cyclictest4074628-21kworker/u16:2+events_unbound21:04:396
3907700991513,2cyclictest3834554-21kworker/u16:4+events_unbound19:52:506
3907699991513,2cyclictest4074628-21kworker/u16:2+events_unbound20:41:005
3907696991513,2cyclictest3879050-21kworker/u16:0+flush-8:019:30:344
3907696991513,2cyclictest3834554-21kworker/u16:4+events_unbound19:39:394
390769699150,1cyclictest3968048-21ntpq19:33:464
390770599140,12cyclictest0-21swapper/719:58:467
3907700991412,2cyclictest4036473-21kworker/u16:4+flush-8:020:14:466
3907700991412,2cyclictest4036473-21kworker/u16:4+events_unbound20:30:336
3907700991412,2cyclictest4036473-21kworker/u16:4+events_unbound20:30:336
3907700991412,2cyclictest3959391-21kworker/u16:1+events_unbound20:07:356
3907699991412,2cyclictest4074628-21kworker/u16:2+events_unbound20:52:245
3907699991412,2cyclictest3879050-21kworker/u16:0+events_unbound19:46:355
3907700991311,2cyclictest3834554-21kworker/u16:4+events_unbound19:10:316
3907700991310,2cyclictest3938856-21cut19:18:446
390770099130,5cyclictest0-21swapper/620:58:396
3907699991311,2cyclictest3959391-21kworker/u16:1+events_unbound20:02:485
3907699991311,2cyclictest3834554-21kworker/u16:4+events_unbound19:26:475
390770599129,2cyclictest1234-21snmpd21:53:517
390770599128,3cyclictest1234-21snmpd22:03:487
390770599120,11cyclictest1234-21snmpd00:26:017
3907700991210,2cyclictest4103288-21kworker/u16:3+events_unbound20:46:356
3907700991210,2cyclictest4055647-21kworker/u16:1+events_unbound20:24:476
3907700991210,2cyclictest4036473-21kworker/u16:4+events_unbound20:22:346
3907700991210,2cyclictest3834554-21kworker/u16:4+events_unbound19:42:346
3907696991210,2cyclictest4074628-21kworker/u16:2+flush-8:020:33:474
3907696991210,2cyclictest4016761-21kworker/u16:0+events_unbound20:28:534
3907696991210,2cyclictest4016761-21kworker/u16:0+events_unbound20:28:534
390770099119,2cyclictest4084837-21kworker/u16:0+events_unbound20:57:106
390770099119,2cyclictest4016761-21kworker/u16:0+events_unbound20:11:516
390769699119,2cyclictest4132209-21kworker/u16:1+events_unbound21:03:394
3907696991110,1cyclictest0-21swapper/420:07:214
390770099108,1cyclictest4075912-21fschecks_time20:33:376
39076969986,1cyclictest0-21swapper/420:38:434
39076969985,2cyclictest3834554-21kworker/u16:4+events_unbound19:43:274
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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