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2026-08-11 - 05:19
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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 rackeslot8.osadl.org (updated Tue Aug 11, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
186436822930,2sleep11864371-21irqcore20:45:171
1739668993532,1cyclictest0-21swapper/323:14:593
1739668992926,1cyclictest0-21swapper/321:00:193
1739668992724,1cyclictest0-21swapper/323:35:003
1739668992521,1cyclictest0-21swapper/322:50:153
1739668992421,1cyclictest0-21swapper/323:40:203
1739668992421,1cyclictest0-21swapper/322:40:223
173966899232,15cyclictest1990428-21chrt22:10:113
1739668992320,1cyclictest0-21swapper/323:27:453
1739668992320,1cyclictest0-21swapper/323:04:593
1739668992320,1cyclictest0-21swapper/319:20:163
173966899231,15cyclictest2131358-21taskset23:40:013
173966899226,9cyclictest19381462sleep321:35:203
173966899226,9cyclictest19381462sleep321:35:203
173966899222,14cyclictest1780394-21taskset19:40:013
1739668992219,1cyclictest0-21swapper/322:26:453
1739668992219,1cyclictest0-21swapper/322:20:193
1739668992219,1cyclictest0-21swapper/322:00:253
173966899221,17cyclictest2035424-21taskset22:35:253
173966899221,17cyclictest1951063-21chrt21:45:143
173966899221,15cyclictest1745091-21chrt19:10:503
173966899220,19cyclictest1746016-21turbostat19:19:553
1739668992118,1cyclictest0-21swapper/321:40:063
1739668992118,1cyclictest0-21swapper/300:20:183
1739668992118,1cyclictest0-21swapper/300:00:063
173966899211,16cyclictest2191617-21taskset00:15:203
173966899207,5cyclictest1869927-21taskset20:49:573
1739668992017,1cyclictest0-21swapper/322:34:513
1739668992017,1cyclictest0-21swapper/321:50:193
1739668992017,1cyclictest0-21swapper/320:40:183
1739668992017,1cyclictest0-21swapper/320:00:253
173966899201,15cyclictest1919666-21chrt21:25:133
173966899201,15cyclictest1844287-21turbostat20:30:013
173966899201,15cyclictest1775965-21taskset19:35:163
1739668992010,7cyclictest18955072sleep321:09:253
173966899198,4cyclictest17675782sleep319:30:043
1739668991916,1cyclictest0-21swapper/323:20:303
1739668991916,1cyclictest0-21swapper/321:20:223
173966899191,14cyclictest2217985-21chrt00:35:133
173966899191,14cyclictest2178448-21taskset00:09:473
173966899191,14cyclictest2083740-21taskset23:08:413
173966899191,14cyclictest1966435-21sleep21:59:543
173966899191,13cyclictest1837878-21turbostat20:25:013
173966899188,1cyclictest0-21swapper/323:15:533
173966899188,1cyclictest0-21swapper/320:15:193
173966899186,3cyclictest1882564-21taskset20:58:503
1739668991815,1cyclictest0-21swapper/319:45:253
1739668991815,1cyclictest0-21swapper/300:10:203
1739668991814,2cyclictest0-21swapper/323:50:163
173966899181,14cyclictest2003274-21taskset22:15:203
173966899181,13cyclictest2210157-21chrt00:30:123
173966899181,13cyclictest2209577-21taskset00:29:193
173966899181,13cyclictest2162985-21chrt00:00:013
173966899181,13cyclictest1989450-21chrt22:08:143
173966899181,13cyclictest1824791-21taskset20:12:073
173966899181,13cyclictest1796972-21taskset19:50:193
173966899181,12cyclictest2066260-21chrt22:55:223
173966899181,12cyclictest1850987-21chrt20:35:133
173966899179,1cyclictest0-21swapper/321:10:263
173966899175,6cyclictest19111792sleep321:19:563
1739668991714,1cyclictest0-21swapper/321:30:173
1739668991714,1cyclictest0-21swapper/319:25:193
173966899171,12cyclictest2139557-21taskset23:45:103
173966899171,12cyclictest2045417-21taskset22:45:163
173966899171,12cyclictest1875937-21taskset20:50:293
173966899171,12cyclictest1850492-21taskset20:32:373
173966899171,12cyclictest1805451-21taskset19:55:573
173966899171,12cyclictest1805451-21taskset19:55:563
173966899170,6cyclictest1818356-21taskset20:06:193
173966899170,6cyclictest1818356-21taskset20:06:183
19046932160,13sleep11905176-21tr21:15:221
21945072150,8sleep22194266-21sendmail-msp00:20:062
19169012150,2sleep0221rcuc/021:20:240
21105562141,9sleep02112200-21kthreadcore23:25:180
20292432140,5sleep22029387-21date22:35:012
19352372141,9sleep21935347-21ssh21:35:152
19352372141,9sleep21935347-21ssh21:35:142
18652202141,10sleep21866687-21grep20:45:192
17392452140,2sleep30-21swapper/319:06:213
22240002131,4sleep1222-21plymouthd00:35:571
21779362130,9sleep22177940-21ssh00:08:222
21636412130,10sleep12164364-21cut00:00:201
20917402136,5sleep2431ktimers/223:14:052
20677222130,10sleep22067730-21ssh22:57:552
20135512132,8sleep0672-21dbus-daemon22:25:000
18975942132,8sleep01899293-21kthreadcore21:10:180
21706292120,5sleep22170635-21ssh00:04:542
21613702120,8sleep12161376-21ssh23:56:021
21545402120,9sleep22154546-21ssh23:54:042
22178932110,4sleep2222-21plymouthd00:35:052
21316142111,7sleep22131357-21sendmail-msp23:40:092
20896392110,8sleep12084527-21/usr/sbin/munin23:10:211
20399142117,2sleep0249-21jbd2/sda2-822:40:200
20289652111,7sleep02028971-21sh22:34:180
18248652110,5sleep10-21swapper/120:13:031
18203112110,8sleep01821034-21cut20:10:180
18134622110,8sleep21814312-21kthreadcore20:05:192
18134622110,8sleep21814312-21kthreadcore20:05:182
17558572111,3sleep11754527-21sendmail-msp19:20:201
17412412113,5sleep21742664-21cut19:10:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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