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2025-12-21 - 22:22
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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 Sun Dec 21, 2025 12:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13964212132,30sleep10-21swapper/107:05:031
159189910614,76cyclictest0-21swapper/010:45:230
159189910613,81cyclictest0-21swapper/011:20:140
159189910573,20cyclictest14-21ksoftirqd/009:45:150
159189910534,36cyclictest6272-21kworker/0:109:50:120
159189910513,78cyclictest0-21swapper/011:55:120
159189910312,78cyclictest0-21swapper/009:40:110
159189910312,78cyclictest0-21swapper/009:05:190
159229910264,28cyclictest26-21ksoftirqd/111:00:121
159189910268,21cyclictest14-21ksoftirqd/010:25:240
159189910262,27cyclictest14-21ksoftirqd/008:00:130
159189910211,81cyclictest500-21snmpd08:15:130
159189910013,74cyclictest0-21swapper/009:30:150
15918999913,74cyclictest0-21swapper/012:20:120
15918999910,77cyclictest13750-21apt-get10:05:180
15918999863,23cyclictest14-21ksoftirqd/007:30:150
15918999814,72cyclictest0-21swapper/012:00:240
15918999813,74cyclictest0-21swapper/009:15:150
15918999712,75cyclictest0-21swapper/009:25:120
15918999712,75cyclictest0-21swapper/009:25:110
15922999615,65cyclictest0-21swapper/110:00:131
15918999612,73cyclictest0-21swapper/011:50:140
15918999512,72cyclictest0-21swapper/007:25:160
15918999512,69cyclictest0-21swapper/012:25:150
15918999511,70cyclictest0-21swapper/011:25:150
231462940,5chrt23147-21/usr/sbin/munin09:00:171
15922999438,46cyclictest26-21ksoftirqd/108:45:131
15922999413,64cyclictest0-21swapper/110:30:131
15918999451,31cyclictest14-21ksoftirqd/008:55:140
15918999415,65cyclictest0-21swapper/011:45:130
15918999412,70cyclictest0-21swapper/007:20:140
15918999412,69cyclictest0-21swapper/010:10:140
15922999312,60cyclictest0-21swapper/108:15:141
15918999314,67cyclictest0-21swapper/009:20:130
15918999313,68cyclictest0-21swapper/012:30:160
15918999313,68cyclictest0-21swapper/007:50:130
15918999313,68cyclictest0-21swapper/007:50:130
15918999313,67cyclictest0-21swapper/010:40:140
15918999313,67cyclictest0-21swapper/009:00:140
15918999312,69cyclictest0-21swapper/011:05:120
15918999311,69cyclictest0-21swapper/008:25:130
1576829320,26sleep00-21swapper/007:09:480
1592299927,60cyclictest5271-21sshd08:10:121
15918999214,67cyclictest0-21swapper/008:30:240
15918999213,68cyclictest0-21swapper/010:20:140
15918999213,68cyclictest0-21swapper/008:35:110
15918999212,67cyclictest0-21swapper/007:55:130
15918999211,69cyclictest0-21swapper/011:30:130
15922999110,59cyclictest0-21swapper/112:00:251
15918999149,30cyclictest0-21swapper/008:10:130
15918999113,66cyclictest0-21swapper/008:50:120
15918999113,65cyclictest0-21swapper/011:10:110
15918999112,67cyclictest0-21swapper/012:15:150
15918999112,67cyclictest0-21swapper/012:15:140
15918999112,67cyclictest0-21swapper/011:40:120
15918999112,65cyclictest0-21swapper/011:00:140
15918999110,69cyclictest0-21swapper/010:50:140
15922999013,56cyclictest0-21swapper/108:55:121
15918999013,66cyclictest0-21swapper/007:10:160
15918999013,65cyclictest0-21swapper/009:35:140
15918999011,67cyclictest0-21swapper/009:10:120
15922998911,59cyclictest0-21swapper/111:45:121
15918998959,20cyclictest0-21swapper/008:05:140
15918998913,66cyclictest0-21swapper/008:40:160
15918998912,65cyclictest0-21swapper/007:40:130
15918998911,66cyclictest0-21swapper/007:45:160
15922998812,56cyclictest0-21swapper/110:45:261
15922998712,57cyclictest0-21swapper/110:55:131
15922998712,57cyclictest0-21swapper/110:55:131
15922998711,55cyclictest0-21swapper/112:05:141
15922998711,55cyclictest0-21swapper/109:50:141
15918998713,65cyclictest0-21swapper/010:15:170
15918998712,62cyclictest0-21swapper/010:35:130
15918998712,62cyclictest0-21swapper/010:35:120
15918998711,66cyclictest0-21swapper/012:35:120
15922998535,35cyclictest26-21ksoftirqd/112:26:081
15918998512,64cyclictest0-21swapper/010:30:170
1592299848,51cyclictest13750-21apt-get10:05:151
15922998411,53cyclictest0-21swapper/109:55:171
15918998310,61cyclictest0-21swapper/008:20:120
1591899818,62cyclictest6506-21apt-get11:15:150
1591899817,60cyclictest13488-21apt-get11:35:140
1591899817,60cyclictest13488-21apt-get11:35:140
15922998035,28cyclictest0-21swapper/109:30:161
1591899802,70cyclictest31891-21seq10:55:080
1591899802,70cyclictest31891-21seq10:55:070
15922997833,27cyclictest0-21swapper/111:05:161
15922997833,27cyclictest0-21swapper/107:15:101
15922997829,31cyclictest0-21swapper/108:35:141
15922997634,27cyclictest0-21swapper/108:20:151
1591899767,56cyclictest25251-21apt-get07:35:130
1591899765,10cyclictest0-21swapper/009:55:290
15922997529,31cyclictest26-21ksoftirqd/107:35:151
15922997529,30cyclictest0-21swapper/111:35:161
15922997529,30cyclictest0-21swapper/111:35:151
1591899757,58cyclictest24323-21apt-get12:05:120
1591899757,58cyclictest11711-21apt-get10:00:140
1591899756,57cyclictest26112-21apt-get12:10:140
15922997447,15cyclictest26-21ksoftirqd/110:20:241
15922997423,32cyclictest0-21swapper/112:10:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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