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2026-07-08 - 18:01
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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 rack3slot6.osadl.org (updated Wed Jul 08, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176799916,79cyclictest0-21swapper/012:10:130
176799916,79cyclictest0-21swapper/012:10:120
1772998914,58cyclictest0-21swapper/108:45:131
177299857,65cyclictest23605-21apt-get09:40:131
1772998514,60cyclictest0-21swapper/110:25:151
1772998513,62cyclictest0-21swapper/112:20:131
1772998415,56cyclictest0-21swapper/112:25:141
1772998414,59cyclictest0-21swapper/109:15:151
1772998414,56cyclictest0-21swapper/111:35:201
1772998413,57cyclictest0-21swapper/109:20:141
176799846,71cyclictest0-21swapper/008:55:130
1772998314,59cyclictest0-21swapper/110:55:131
1772998313,59cyclictest0-21swapper/112:35:101
176799836,70cyclictest0-21swapper/010:15:100
176799836,53cyclictest0-21swapper/009:53:430
176799832,20cyclictest22263-21irqstats09:35:250
177299827,65cyclictest27382-21apt-get09:50:131
177299827,64cyclictest31125-21apt-get08:30:091
177299827,61cyclictest25887-21apt-get08:15:121
177299827,60cyclictest2351-21apt-get11:40:141
1772998216,53cyclictest0-21swapper/107:35:131
1772998214,57cyclictest0-21swapper/107:55:151
1772998214,56cyclictest0-21swapper/110:50:111
1772998214,54cyclictest0-21swapper/108:00:141
1772998214,53cyclictest0-21swapper/110:45:101
1772998213,56cyclictest0-21swapper/110:10:131
1772998213,54cyclictest0-21swapper/109:35:151
176799827,67cyclictest0-21swapper/010:20:100
176799826,65cyclictest0-21swapper/010:00:130
176799826,63cyclictest0-21swapper/011:40:140
177299818,62cyclictest10707-21apt-get10:35:111
177299818,62cyclictest10707-21apt-get10:35:111
177299817,58cyclictest8968-21apt-get10:30:111
1772998115,56cyclictest0-21swapper/108:10:131
1772998114,58cyclictest0-21swapper/108:20:131
1772998114,57cyclictest0-21swapper/107:45:141
1772998114,57cyclictest0-21swapper/107:15:241
176799817,67cyclictest0-21swapper/007:55:130
176799816,60cyclictest0-21swapper/011:15:130
176799816,59cyclictest0-21swapper/007:35:150
176799815,60cyclictest0-21swapper/010:35:110
176799815,60cyclictest0-21swapper/010:35:110
177299808,61cyclictest3727-21apt-get10:15:131
177299807,63cyclictest17124-21apt-get07:50:131
177299803,70cyclictest9412-21wc09:00:011
1772998021,53cyclictest0-21swapper/112:00:221
1772998015,55cyclictest0-21swapper/109:30:141
1772998013,53cyclictest0-21swapper/109:10:101
1772998012,56cyclictest0-21swapper/107:30:231
1772998012,56cyclictest0-21swapper/107:30:231
176799807,58cyclictest0-21swapper/007:50:130
176799806,61cyclictest0-21swapper/009:40:130
176799804,66cyclictest16659-21apt-get12:20:130
177299797,56cyclictest6039-21apt-get08:50:131
177299796,61cyclictest5823-21apt-get11:50:111
1772997916,52cyclictest0-21swapper/108:35:241
1772997912,58cyclictest0-21swapper/109:45:251
1772997912,58cyclictest0-21swapper/107:25:131
1772997912,55cyclictest0-21swapper/108:05:141
176799797,56cyclictest21876-21apt-get12:35:100
176799796,62cyclictest4301-21apt-get08:45:130
176799796,61cyclictest0-21swapper/011:10:230
176799796,60cyclictest16573-21apt-get09:20:120
177299788,58cyclictest14897-21apt-get12:15:131
177299786,62cyclictest4088-21apt-get11:45:141
177299786,59cyclictest23628-21apt-get11:10:231
177299786,56cyclictest13647-21apt-get07:40:131
177299785,10cyclictest0-21swapper/110:45:021
1772997814,50cyclictest0-21swapper/108:40:111
1772997813,54cyclictest0-21swapper/111:00:141
1772997812,56cyclictest9542-21sshd09:00:141
176799787,62cyclictest0-21swapper/010:45:120
176799787,55cyclictest18043-21apt-get10:55:130
176799786,66cyclictest0-21swapper/012:05:210
176799786,66cyclictest0-21swapper/011:25:110
176799786,66cyclictest0-21swapper/007:10:120
176799786,62cyclictest0-21swapper/008:15:130
176799785,60cyclictest0-21swapper/011:45:120
1767997819,53cyclictest243-21systemd-journal08:09:220
126927820,49sleep00-21swapper/007:06:390
177299779,52cyclictest1850-21apt-get07:10:121
177299777,53cyclictest11275-21apt-get09:05:131
177299776,60cyclictest25371-21apt-get11:15:131
177299775,68cyclictest0-21swapper/112:10:291
177299775,68cyclictest0-21swapper/112:10:291
1772997714,52cyclictest0-21swapper/111:25:141
1772997710,60cyclictest5619-21aten2.4-expect10:20:161
176799777,62cyclictest0-21swapper/010:05:130
176799777,59cyclictest0-21swapper/009:05:140
176799776,64cyclictest0-21swapper/011:05:120
176799776,59cyclictest1990-21apt-get10:10:130
176799776,58cyclictest0-21swapper/008:30:090
176799775,61cyclictest0-21swapper/010:30:110
176799775,58cyclictest7231-21apt-get10:25:150
176799775,57cyclictest14814-21apt-get09:15:150
177299768,62cyclictest0-21swapper/107:20:261
177299766,55cyclictest11363-21apt-get12:05:231
177299766,54cyclictest21542-21apt-get11:05:131
176799766,59cyclictest0-21swapper/008:50:130
176799766,59cyclictest0-21swapper/007:40:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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