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2025-12-05 - 10:54
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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
Characteristics of the 100 highest latencies:
System rackcslot6.osadl.org (updated Fri Dec 05, 2025 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159017221050,7sleep40-21swapper/419:05:124
15929049910133,35cyclictest0-21swapper/623:33:156
1592891999412,49cyclictest1698899-21ssh21:33:154
18751792920,0sleep3341rcuc/323:51:243
18751792920,0sleep3341rcuc/323:51:243
18124432910,1sleep010-21ksoftirqd/023:02:110
1592899998918,41cyclictest0-21swapper/520:48:155
1592911998817,38cyclictest0-21swapper/700:18:157
1592911998516,36cyclictest0-21swapper/721:43:147
1592899998516,38cyclictest0-21swapper/521:58:155
159252228543,13sleep10-21swapper/119:07:431
1592911998415,37cyclictest0-21swapper/700:08:157
1592904998416,36cyclictest0-21swapper/619:58:156
1592899998414,38cyclictest0-21swapper/522:18:145
1592911998316,35cyclictest0-21swapper/720:23:157
1592899998317,36cyclictest0-21swapper/523:43:155
17386942820,0sleep10-21swapper/122:05:011
1592904998216,35cyclictest0-21swapper/623:18:156
159247528141,13sleep30-21swapper/319:07:043
159239428143,32sleep00-21swapper/019:05:570
16574412780,2sleep010-21ksoftirqd/020:50:180
1592904997816,33cyclictest0-21swapper/623:53:156
1592904997816,33cyclictest0-21swapper/623:53:156
1592899997715,33cyclictest0-21swapper/521:23:155
16316152760,0sleep10-21swapper/120:10:131
16662372740,1sleep010-21ksoftirqd/021:05:160
16097832730,0sleep763-21ksoftirqd/719:35:127
17953432720,0sleep70-21swapper/722:49:527
18154892710,0sleep00-21swapper/023:05:140
16462032710,0sleep70-21swapper/720:30:317
18132672700,0sleep40-21swapper/423:03:194
159256827044,13sleep20-21swapper/219:08:232
159246927043,13sleep60-21swapper/619:06:596
159289999690,36cyclictest0-21swapper/519:48:155
159254426943,13sleep50-21swapper/519:08:035
159245226943,13sleep70-21swapper/719:06:447
1592911996416,34cyclictest0-21swapper/719:13:157
17161502630,0sleep60-21swapper/621:45:436
1592904995316,33cyclictest0-21swapper/622:08:156
1592904995015,32cyclictest0-21swapper/622:58:156
1592911993511,24cyclictest0-21swapper/700:22:597
1592904993511,24cyclictest0-21swapper/620:17:596
1592866993410,24cyclictest0-21swapper/122:26:591
159291199328,24cyclictest0-21swapper/722:15:597
1592911993116,15cyclictest0-21swapper/700:38:157
159288399318,0cyclictest0-21swapper/323:08:583
159285899317,24cyclictest0-21swapper/019:45:590
18755542300,0sleep20-21swapper/223:51:552
18755542300,0sleep20-21swapper/223:51:542
1592904993014,15cyclictest0-21swapper/620:53:156
1592899993014,15cyclictest0-21swapper/523:23:155
1592875993014,15cyclictest0-21swapper/223:58:142
159285899306,24cyclictest0-21swapper/021:41:590
1592866992913,15cyclictest0-21swapper/122:38:151
17906062280,1sleep442-21ksoftirqd/422:45:164
1592911992813,5cyclictest0-21swapper/723:28:157
1592866992812,15cyclictest0-21swapper/123:48:141
18896572270,2sleep3159288399cyclictest00:03:583
159290499273,0cyclictest0-21swapper/621:05:596
1592904992711,15cyclictest0-21swapper/621:13:156
1592875992711,15cyclictest0-21swapper/220:58:152
1592875992711,15cyclictest0-21swapper/220:58:142
1592866992711,15cyclictest0-21swapper/119:53:141
159285899273,24cyclictest0-21swapper/020:49:590
16621832260,0sleep50-21swapper/520:59:595
16621832260,0sleep50-21swapper/520:59:595
1592899992611,14cyclictest0-21swapper/519:28:155
1592891992610,13cyclictest0-21swapper/400:23:154
159286699269,16cyclictest0-21swapper/121:38:141
1592866992611,15cyclictest0-21swapper/100:13:151
1592866992610,15cyclictest0-21swapper/121:18:151
159291199259,15cyclictest0-21swapper/722:13:157
159290499259,16cyclictest0-21swapper/621:53:156
1592904992523,1cyclictest2107-21gnome-shell20:01:596
159289999259,15cyclictest0-21swapper/520:18:155
159286699259,15cyclictest0-21swapper/119:18:151
159285899251,24cyclictest0-21swapper/000:15:580
18864732240,0sleep40-21swapper/400:00:224
159290499241,0cyclictest0-21swapper/621:57:596
159290499240,24cyclictest0-21swapper/621:29:596
1592883992423,1cyclictest2107-21gnome-shell00:05:593
159287599248,15cyclictest0-21swapper/221:08:152
1592875992415,3cyclictest0-21swapper/222:23:152
1592875992415,3cyclictest0-21swapper/222:23:152
159286699248,15cyclictest0-21swapper/121:48:151
159285899240,24cyclictest0-21swapper/021:49:590
1592883992322,1cyclictest2107-21gnome-shell22:21:593
1592883992322,1cyclictest2107-21gnome-shell22:21:583
159291199226,15cyclictest0-21swapper/722:03:147
159289999226,15cyclictest0-21swapper/523:13:155
159286699226,15cyclictest0-21swapper/123:38:151
1592866992221,1cyclictest0-21swapper/119:13:521
18463082210,0sleep228-21ksoftirqd/223:29:592
17082102210,0sleep60-21swapper/621:40:146
16859722210,0sleep20-21swapper/221:22:562
159290499215,15cyclictest0-21swapper/600:33:156
1592904992120,1cyclictest2107-21gnome-shell00:27:596
159289999216,12cyclictest0-21swapper/520:08:155
1592891992120,1cyclictest0-21swapper/421:41:384
1592883992120,1cyclictest1624866-21kworker/3:122:46:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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