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2026-09-08 - 19:00
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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 100 highest latencies:
System rack0slot2.osadl.org (updated Tue Sep 08, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
153360525518,31sleep70-21swapper/707:05:257
152617424030,7sleep50-21swapper/507:05:075
153523223322,8sleep40-21swapper/407:08:114
153517823323,7sleep60-21swapper/607:07:246
21522322260,1chrt2152233-21ssh11:43:057
1535641992524,0cyclictest0-21swapper/708:55:127
1535636992522,2cyclictest1772197-21kworker/u16:2+flush-8:010:05:245
1535634992521,3cyclictest1999284-21kworker/u16:1+flush-8:011:04:584
1535636992321,2cyclictest2177965-21kworker/u16:1+events_unbound12:00:065
1535641992221,0cyclictest0-21swapper/707:30:177
1535641992120,0cyclictest0-21swapper/709:58:007
1535636992119,2cyclictest1772197-21kworker/u16:2+flush-8:009:55:065
1535641992019,0cyclictest0-21swapper/709:26:567
1535636992018,2cyclictest2104062-21kworker/u16:2+flush-8:011:35:045
1535636992018,2cyclictest1796671-21kworker/u16:4+flush-8:010:25:275
1535641991918,0cyclictest0-21swapper/709:45:107
1535641991917,1cyclictest2039738-21sh10:55:297
153564199190,17cyclictest1808753-21turbostat09:24:587
153564199190,17cyclictest0-21swapper/708:26:457
1535636991917,2cyclictest2104062-21kworker/u16:2+flush-8:012:20:195
1535636991917,2cyclictest2067591-21kworker/u16:0+flush-8:011:55:095
1535636991914,4cyclictest1626256-21latency_hist07:54:595
1535641991817,0cyclictest0-21swapper/710:12:087
1535641991816,1cyclictest2275187-21ssh12:32:587
153564199180,17cyclictest0-21swapper/712:05:237
1535636991816,2cyclictest2104062-21kworker/u16:2+flush-8:012:19:395
1535634991816,2cyclictest1577828-21kworker/u16:3+events_unbound10:55:134
153564199173,6cyclictest0-21swapper/708:17:467
153564199171,14cyclictest2174717-21ssh11:50:227
1535641991612,3cyclictest1256-21snmpd12:27:237
153564199160,14cyclictest1256-21snmpd12:04:467
153564199160,14cyclictest0-21swapper/709:05:237
153563999163,5cyclictest0-21swapper/609:02:246
1535639991614,2cyclictest1772197-21kworker/u16:2+flush-8:009:55:146
153563699162,13cyclictest2172159-21kthreadcore11:50:175
1535636991614,2cyclictest2177965-21kworker/u16:1+flush-8:012:08:385
1535636991614,2cyclictest1796671-21kworker/u16:4+flush-8:010:59:575
1535636991614,2cyclictest1665413-21kworker/u16:0+events_unbound08:26:565
1535634991614,2cyclictest1772197-21kworker/u16:2+flush-8:010:15:294
153564199156,8cyclictest0-21swapper/707:12:567
1535641991513,1cyclictest1577947-21turbostat07:29:597
1535641991513,1cyclictest0-21swapper/712:15:167
1535641991513,1cyclictest0-21swapper/709:11:397
153564199150,14cyclictest0-21swapper/712:10:227
153564199150,14cyclictest0-21swapper/711:25:227
153564199150,13cyclictest1854789-21ssh09:40:227
153564199150,13cyclictest1771711-21diskmemload10:05:217
1535639991513,1cyclictest0-21swapper/607:15:036
1535639991511,3cyclictest1821065-21latency_hist09:29:596
1535636991513,2cyclictest2264514-21kworker/u16:1+flush-8:012:35:275
1535636991513,2cyclictest1772197-21kworker/u16:2+flush-8:009:45:505
1535636991513,2cyclictest1763187-21kworker/u16:1+flush-8:009:05:165
1535636991513,2cyclictest1665413-21kworker/u16:0+events_unbound08:31:025
1535636991513,2cyclictest1577828-21kworker/u16:3+flush-8:010:50:095
1535636991513,2cyclictest1577828-21kworker/u16:3+flush-8:010:40:095
1535634991513,2cyclictest1606605-21kworker/u16:1+flush-8:008:06:024
153564199147,6cyclictest14114-21gmain10:31:277
153564199142,5cyclictest0-21swapper/708:41:357
1535641991413,0cyclictest0-21swapper/709:50:287
1535641991411,2cyclictest1256-21snmpd10:37:207
1535641991411,2cyclictest1256-21snmpd10:27:447
153564199140,6cyclictest0-21swapper/708:45:147
153564199140,5cyclictest0-21swapper/708:08:437
153564199140,1cyclictest0-21swapper/707:15:257
1535639991413,1cyclictest2250929-21kworker/u16:0+events_unbound12:39:046
1535639991413,1cyclictest0-21swapper/610:55:176
153563999140,1cyclictest0-21swapper/610:35:246
1535636991412,2cyclictest2104062-21kworker/u16:2+flush-8:012:25:355
1535636991412,2cyclictest1999284-21kworker/u16:1+events_unbound11:05:275
1535636991412,2cyclictest1796671-21kworker/u16:4+flush-8:010:35:125
1535636991412,2cyclictest1796671-21kworker/u16:4+events_unbound10:31:315
1535636991412,2cyclictest1796671-21kworker/u16:4+events_unbound10:10:365
1535636991412,2cyclictest1796671-21kworker/u16:4+events_unbound10:02:295
1535636991412,2cyclictest1772197-21kworker/u16:2+events_unbound09:10:115
1535636991412,2cyclictest1577828-21kworker/u16:3+events_unbound11:00:225
153563699140,1cyclictest0-21swapper/507:11:105
153563699140,14cyclictest0-21swapper/511:30:305
153563699140,14cyclictest0-21swapper/510:45:065
153563699140,14cyclictest0-21swapper/510:15:285
153563699140,14cyclictest0-21swapper/508:11:135
1535634991413,1cyclictest0-21swapper/411:48:414
1535634991413,1cyclictest0-21swapper/411:34:394
1535634991413,1cyclictest0-21swapper/409:56:264
1535634991413,1cyclictest0-21swapper/409:41:564
153563499140,1cyclictest0-21swapper/410:38:324
153563499140,1cyclictest0-21swapper/407:30:254
153563499140,14cyclictest0-21swapper/411:24:534
153563499140,14cyclictest0-21swapper/411:24:534
153563499140,14cyclictest0-21swapper/409:04:184
224917621310,2sleep42177965-21kworker/u16:1+flush-8:012:20:304
153564199139,3cyclictest2190091-21sh11:59:437
153564199138,4cyclictest645-21systemd-journal08:32:037
153564199136,6cyclictest14114-21gmain09:15:397
153564199136,6cyclictest14114-21gmain09:15:397
153564199136,6cyclictest0-21swapper/708:00:377
153564199134,8cyclictest0-21swapper/708:38:417
1535641991310,2cyclictest2137760-21ssh11:35:237
153564199130,5cyclictest0-21swapper/707:40:457
153564199130,12cyclictest0-21swapper/707:21:427
153563999135,7cyclictest0-21swapper/607:10:026
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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