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2026-04-09 - 17:38
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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 Thu Apr 09, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
848838993027,1cyclictest0-21swapper/309:20:143
848838992825,1cyclictest0-21swapper/309:55:003
848838992522,1cyclictest0-21swapper/309:55:153
848838992522,1cyclictest0-21swapper/309:55:153
848838992522,1cyclictest0-21swapper/309:25:153
848838992522,1cyclictest0-21swapper/307:15:013
848838992421,1cyclictest0-21swapper/311:10:193
848838992421,1cyclictest0-21swapper/310:50:173
848838992311,8cyclictest13302372sleep312:38:223
848838992219,1cyclictest0-21swapper/307:50:003
84883899221,16cyclictest966582-21taskset08:39:473
848838992119,1cyclictest0-21swapper/312:05:013
848838992118,1cyclictest0-21swapper/312:20:003
84883899211,15cyclictest1129264-21taskset10:30:013
84883899211,14cyclictest1237776-21sleep11:44:553
12509672210,1sleep00-21swapper/011:45:190
84883899209,7cyclictest9214092sleep308:02:523
84883899209,7cyclictest8955812sleep307:40:593
84883899208,8cyclictest12303172sleep311:35:123
848838992017,1cyclictest0-21swapper/312:25:173
84883899201,14cyclictest1206729-21taskset11:19:563
848838992010,7cyclictest10049322sleep309:08:193
11753082209,8sleep20-21swapper/210:58:512
8757232193,9sleep134-21ksoftirqd/107:25:221
848838991916,1cyclictest0-21swapper/312:10:203
848838991916,1cyclictest0-21swapper/310:10:243
848838991916,1cyclictest0-21swapper/309:15:173
84883899191,15cyclictest1168294-21taskset10:55:113
84883899191,14cyclictest1323044-21turbostat12:35:003
84883899191,14cyclictest1096060-21chrt10:05:233
84883899191,13cyclictest991329-21taskset08:55:233
84883899191,13cyclictest1229937-21taskset11:34:563
84883899191,10cyclictest1082632-21sleep10:04:553
848838991910,7cyclictest1144698-21turbostat10:40:003
84883899190,17cyclictest876643-21turbostat07:34:553
6881190,10low-memory-moni1105869-21sqv10:14:592
129998190,1rtkit-daemon0-21swapper/207:18:102
84883899182,13cyclictest1259602-21taskset11:50:513
84883899182,13cyclictest1259602-21taskset11:50:513
84883899182,13cyclictest1135938-21taskset10:31:563
848838991815,1cyclictest0-21swapper/310:45:133
848838991815,1cyclictest0-21swapper/310:20:173
848838991815,1cyclictest0-21swapper/310:17:333
848838991815,1cyclictest0-21swapper/309:00:023
848838991815,1cyclictest0-21swapper/308:50:203
84883899181,14cyclictest1051590-21taskset09:39:493
84883899181,13cyclictest960121-21taskset08:34:423
84883899181,13cyclictest885729-21taskset07:35:173
84883899181,13cyclictest1306267-21taskset12:21:143
84883899181,13cyclictest1058649-21taskset09:42:463
11915882181,14sleep21191743-21df_inode11:10:142
84883899176,8cyclictest947273-21sleep08:29:543
84883899176,7cyclictest9747282sleep308:45:183
848838991714,1cyclictest0-21swapper/310:40:273
848838991714,1cyclictest0-21swapper/308:40:133
848838991714,1cyclictest0-21swapper/308:16:253
848838991714,1cyclictest0-21swapper/307:50:183
84883899171,13cyclictest1283650-21taskset12:08:193
84883899171,13cyclictest1267260-21taskset11:55:453
84883899171,13cyclictest1182500-21taskset11:02:043
84883899171,13cyclictest1043380-21taskset09:33:393
84883899171,12cyclictest928251-21taskset08:10:053
84883899171,12cyclictest927790-21taskset08:07:243
84883899171,12cyclictest1059701-21taskset09:45:063
84883899171,12cyclictest1005385-21chrt09:10:103
84883899170,13cyclictest1183769-21taskset11:05:093
9316662160,12sleep0933270-21grep08:10:190
848838991613,1cyclictest0-21swapper/311:45:133
848838991613,1cyclictest0-21swapper/308:20:183
848838991613,1cyclictest0-21swapper/307:25:133
84883899161,12cyclictest915016-21taskset07:58:103
84883899161,12cyclictest869781-21taskset07:20:243
84883899161,12cyclictest863425-21taskset07:15:443
84883899161,12cyclictest1221366-21taskset11:27:253
84883899161,11cyclictest1207076-21taskset11:20:083
8483382160,3sleep30-21swapper/307:05:393
129998160,5rtkit-daemon984894-21ntpq08:50:201
8476372141,10sleep1847731-21ntpq07:05:211
129998130,5rtkit-daemon171rcu_preempt09:37:130
9528562127,3sleep0221rcuc/008:25:260
8661152120,9sleep2867874-21grep07:20:162
13230212121,7sleep11-21systemd12:35:011
13052012121,8sleep01305347-21ntpq12:20:200
129998120,8rtkit-daemon1089209-21ssh10:01:341
129998120,6rtkit-daemon939887-21ntpq08:15:221
12903692121,8sleep11290378-21ssh12:10:271
12486312120,9sleep21250328-21grep11:45:182
11592992120,8sleep01159305-21ssh10:47:100
11520052121,4sleep2222-21plymouthd10:43:362
10975202121,8sleep21097524-21ssh10:08:162
9086042110,3sleep2222-21plymouthd07:53:052
8650852111,7sleep1865479-21kthreadcore07:20:161
129998110,8rtkit-daemon0-21swapper/112:09:271
129998110,7rtkit-daemon855386-21munin-node07:47:332
129998110,7rtkit-daemon2195379-21ntpd10:22:011
129998110,5rtkit-daemon1238116-21apt-get11:40:142
12137652110,8sleep01213771-21ssh11:22:470
11623452110,8sleep21163965-21tr10:50:172
10602102110,8sleep01061136-21cut09:45:150
9928612100,7sleep1993001-21/usr/sbin/munin09:00:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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