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2025-11-25 - 23:25
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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 Tue Nov 25, 2025 12:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
264438721260,0sleep00-21swapper/010:30:130
251687128969,3sleep50-21swapper/507:05:215
251687128969,3sleep50-21swapper/507:05:215
2518523998716,38cyclictest0-21swapper/111:33:141
2518523998716,38cyclictest0-21swapper/111:33:141
26758132850,0sleep20-21swapper/211:20:132
2518537998415,40cyclictest0-21swapper/308:53:143
26005952830,0sleep30-21swapper/309:20:003
2518531998316,38cyclictest0-21swapper/207:28:132
2518531998316,37cyclictest0-21swapper/211:18:132
251829728242,34sleep70-21swapper/707:09:417
251829728242,34sleep70-21swapper/707:09:417
251820928243,32sleep00-21swapper/007:08:290
251820928243,32sleep00-21swapper/007:08:290
26226762770,2sleep763-21ksoftirqd/709:55:127
2518516997715,38cyclictest0-21swapper/009:48:140
25918492760,0sleep60-21swapper/609:05:136
2518516997615,38cyclictest0-21swapper/008:03:140
2518516997615,35cyclictest0-21swapper/007:53:140
26970192740,0sleep5481rcuc/511:55:005
25834632720,0sleep70-21swapper/708:50:177
2518523997229,36cyclictest0-21swapper/110:33:131
251807927247,12sleep10-21swapper/107:06:381
251807927247,12sleep10-21swapper/107:06:381
251808927145,13sleep20-21swapper/207:06:472
251808927145,13sleep20-21swapper/207:06:472
25320262700,0sleep10-21swapper/107:30:011
2518516997016,38cyclictest0-21swapper/009:38:130
251824127044,13sleep30-21swapper/307:08:563
251824127044,13sleep30-21swapper/307:08:563
251800726943,13sleep40-21swapper/407:05:364
251800726943,13sleep40-21swapper/407:05:364
251806426843,12sleep60-21swapper/607:06:266
251806426843,12sleep60-21swapper/607:06:266
2518565996313,34cyclictest0-21swapper/710:58:147
2518544993810,28cyclictest42-21ksoftirqd/409:58:134
2518523993511,24cyclictest0-21swapper/107:19:581
2518544993415,19cyclictest0-21swapper/407:43:134
2518565993231,1cyclictest0-21swapper/712:38:137
251851699328,24cyclictest0-21swapper/007:25:590
251852399317,24cyclictest0-21swapper/107:35:591
2518565993014,15cyclictest0-21swapper/711:43:137
2518565993014,15cyclictest0-21swapper/707:18:147
2518552993014,15cyclictest0-21swapper/512:28:145
251852399306,24cyclictest0-21swapper/107:22:581
2518565992913,15cyclictest0-21swapper/711:58:147
2518565992913,15cyclictest0-21swapper/711:08:137
2518552992913,15cyclictest0-21swapper/510:53:145
2518516992913,15cyclictest0-21swapper/008:23:140
2518565992812,15cyclictest0-21swapper/712:18:137
2518531992812,15cyclictest0-21swapper/211:03:142
2518565992711,15cyclictest0-21swapper/711:23:137
2518537992711,15cyclictest0-21swapper/312:03:133
2518537992711,15cyclictest0-21swapper/309:53:143
25739752260,2sleep656-21ksoftirqd/608:35:176
2518537992610,15cyclictest0-21swapper/310:48:133
2518531992610,15cyclictest0-21swapper/210:03:132
2518516992610,15cyclictest0-21swapper/009:28:130
2518565992524,1cyclictest0-21swapper/710:23:137
2518552992524,1cyclictest2107-21gnome-shell08:38:595
251851699259,15cyclictest0-21swapper/011:38:130
251851699259,15cyclictest0-21swapper/009:18:140
251851699252,0cyclictest0-21swapper/008:36:590
251852399248,15cyclictest0-21swapper/111:48:141
251856599237,15cyclictest0-21swapper/709:13:137
251855299237,15cyclictest0-21swapper/510:13:145
2518537992323,0cyclictest0-21swapper/307:37:483
251852399237,15cyclictest0-21swapper/109:43:131
2518523992323,0cyclictest2107-21gnome-shell11:57:591
251856599226,15cyclictest0-21swapper/709:23:147
251855299226,14cyclictest0-21swapper/508:13:145
25717212210,0sleep0111rcuc/008:30:220
2518559992120,1cyclictest0-21swapper/610:45:306
251851699210,2cyclictest859-21systemd-machine09:13:410
251851699204,15cyclictest0-21swapper/007:13:140
251854499193,15cyclictest0-21swapper/410:08:134
251854499193,15cyclictest0-21swapper/410:08:134
2518537991918,1cyclictest0-21swapper/307:15:583
251853199193,15cyclictest0-21swapper/207:58:142
2518516991919,0cyclictest0-21swapper/012:23:590
2518516991918,1cyclictest2107-21gnome-shell11:50:580
26774062180,0sleep40-21swapper/411:20:234
251855999187,11cyclictest0-21swapper/607:23:146
251855999186,12cyclictest0-21swapper/612:08:136
251855999186,12cyclictest0-21swapper/608:58:136
251855999185,13cyclictest0-21swapper/612:23:146
251855999184,14cyclictest0-21swapper/612:33:146
251855999182,16cyclictest56-21ksoftirqd/608:28:136
2518559991814,4cyclictest0-21swapper/608:48:136
2518559991813,4cyclictest0-21swapper/610:43:146
2518559991812,6cyclictest0-21swapper/608:08:146
2518559991811,7cyclictest0-21swapper/608:18:136
251855299182,15cyclictest0-21swapper/509:03:145
2518544991817,1cyclictest2107-21gnome-shell07:34:594
251853799180,1cyclictest0-21swapper/309:13:303
251852399182,15cyclictest0-21swapper/109:33:131
2518523991818,0cyclictest0-21swapper/108:31:581
2518523991817,1cyclictest2107-21gnome-shell08:19:581
2518516991818,0cyclictest0-21swapper/007:21:590
26786532170,0sleep50-21swapper/511:25:135
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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