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2025-12-12 - 18:50
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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 12, 2025 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41296252128110,3sleep10-21swapper/119:05:181
4131550999933,37cyclictest0-21swapper/221:53:162
4131550998716,37cyclictest0-21swapper/220:13:152
4131550998616,38cyclictest0-21swapper/219:38:152
4131550998616,37cyclictest0-21swapper/220:58:162
4131550998615,37cyclictest0-21swapper/200:33:152
4131550998516,39cyclictest0-21swapper/220:23:162
4131550998515,37cyclictest0-21swapper/219:13:162
4131550998515,36cyclictest0-21swapper/219:48:162
4131550998416,36cyclictest0-21swapper/221:08:152
413112528443,12sleep00-21swapper/019:06:540
413114428343,12sleep70-21swapper/719:07:097
4131565998214,38cyclictest0-21swapper/419:28:154
4131565998212,42cyclictest56135-21ssh21:43:154
4131565998015,36cyclictest0-21swapper/420:33:164
4131565998014,36cyclictest0-21swapper/421:33:164
4131550997915,35cyclictest0-21swapper/223:48:162
509952770,0sleep10-21swapper/121:39:531
4131550997617,37cyclictest0-21swapper/222:53:162
1825612760,0sleep30-21swapper/323:24:343
1675802750,0sleep30-21swapper/323:11:033
1393292740,0sleep60-21swapper/622:49:596
1029062740,0sleep10-21swapper/122:20:151
1378702720,0sleep70-21swapper/722:48:257
1715492710,2sleep549-21ksoftirqd/523:15:145
216999700,50rtkit-daemon0-21swapper/519:05:015
413128126943,13sleep60-21swapper/619:09:016
413119326843,12sleep40-21swapper/419:07:474
413056926752,10sleep20-21swapper/219:05:282
413108026647,13sleep30-21swapper/319:06:173
4131586995810,44cyclictest63-21ksoftirqd/723:58:157
4131573995616,33cyclictest0-21swapper/519:58:165
4131573995410,44cyclictest49-21ksoftirqd/500:23:165
4131573995315,34cyclictest0-21swapper/523:13:165
4131586995216,36cyclictest0-21swapper/700:13:167
4131573995016,34cyclictest0-21swapper/523:28:165
4131573995015,35cyclictest0-21swapper/523:03:155
4131579994912,21cyclictest0-21swapper/622:08:166
4131573994914,35cyclictest0-21swapper/522:43:155
2627812400,0sleep70-21swapper/700:27:497
4131573993611,24cyclictest218290-21ssh23:51:595
4131541993511,24cyclictest0-21swapper/119:13:591
4131533993511,24cyclictest0-21swapper/000:00:590
4131541993410,24cyclictest0-21swapper/123:29:581
413153399339,24cyclictest0-21swapper/023:11:580
4131579993211,6cyclictest0-21swapper/600:28:166
413154199328,24cyclictest0-21swapper/100:38:591
4131541993215,16cyclictest0-21swapper/122:58:161
4131579993115,15cyclictest0-21swapper/621:18:166
4131533993130,1cyclictest0-21swapper/022:03:270
4131586993014,15cyclictest0-21swapper/721:38:167
4131573993014,15cyclictest0-21swapper/520:28:165
4131550993014,15cyclictest0-21swapper/222:03:162
413153399306,24cyclictest0-21swapper/020:45:590
413153399306,24cyclictest0-21swapper/020:45:590
4131586992913,15cyclictest0-21swapper/719:23:167
4131586992913,15cyclictest0-21swapper/719:23:167
413157999296,0cyclictest0-21swapper/621:56:586
413156599296,0cyclictest0-21swapper/422:10:594
413156599295,24cyclictest0-21swapper/422:58:594
4131550992913,15cyclictest0-21swapper/223:23:162
4131550992913,15cyclictest0-21swapper/220:43:162
4131550992913,15cyclictest0-21swapper/220:03:162
413154199295,24cyclictest0-21swapper/121:47:591
4131533992928,1cyclictest0-21swapper/022:28:160
4131550992812,15cyclictest0-21swapper/222:23:162
4131550992811,16cyclictest0-21swapper/223:08:162
4131541992812,15cyclictest0-21swapper/120:38:151
4131579992711,15cyclictest56-21ksoftirqd/622:18:166
4131579992711,15cyclictest0-21swapper/619:33:166
4131565992711,15cyclictest0-21swapper/423:33:154
413157999269,16cyclictest56-21ksoftirqd/600:38:166
413154199262,24cyclictest0-21swapper/120:32:581
4131541992610,15cyclictest0-21swapper/100:03:161
413157999259,15cyclictest0-21swapper/622:33:166
413158699248,15cyclictest0-21swapper/722:38:157
4131579992423,1cyclictest2107-21gnome-shell23:21:596
413157399248,15cyclictest0-21swapper/521:48:155
413156599248,15cyclictest0-21swapper/420:18:164
4131565992423,1cyclictest2107-21gnome-shell20:53:594
413156599241,0cyclictest0-21swapper/421:18:594
413156599241,0cyclictest0-21swapper/400:35:594
413156599240,24cyclictest0-21swapper/420:05:594
413156599240,24cyclictest0-21swapper/400:03:594
413154199248,14cyclictest0-21swapper/120:53:161
413153399248,15cyclictest0-21swapper/023:38:160
413153399248,15cyclictest0-21swapper/023:38:150
413153399240,24cyclictest0-21swapper/020:29:580
2314962240,0sleep20-21swapper/200:02:532
4131586992322,1cyclictest0-21swapper/721:11:027
413157399237,15cyclictest0-21swapper/523:43:155
413155099237,15cyclictest0-21swapper/221:23:162
413155099237,15cyclictest0-21swapper/200:18:162
2021372230,0sleep60-21swapper/623:40:076
944522220,1sleep010-21ksoftirqd/022:14:060
41579562220,0sleep20-21swapper/219:50:142
413158699226,15cyclictest0-21swapper/723:18:167
4131533992211,11cyclictest0-21swapper/021:03:160
2516032220,0sleep30-21swapper/300:19:443
2248412220,1sleep010-21ksoftirqd/023:57:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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