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2026-08-02 - 16:59
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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 50 highest latencies:
System rack3slot6.osadl.org (updated Sun Aug 02, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13829911536,68cyclictest0-21swapper/011:45:140
13829911210,87cyclictest0-21swapper/009:45:150
13829911064,32cyclictest14-21ksoftirqd/009:30:150
13829911012,82cyclictest0-21swapper/007:20:150
13829910916,77cyclictest0-21swapper/009:00:130
13829910862,35cyclictest14-21ksoftirqd/008:25:130
13829910758,36cyclictest14-21ksoftirqd/010:25:130
13829910715,75cyclictest0-21swapper/011:05:120
13829910615,77cyclictest0-21swapper/010:55:140
13829910615,77cyclictest0-21swapper/010:55:140
13829910513,80cyclictest0-21swapper/012:30:120
13829910413,74cyclictest0-21swapper/010:45:140
1382991038,74cyclictest0-21swapper/010:30:120
13829910315,70cyclictest0-21swapper/008:05:200
13829910313,73cyclictest0-21swapper/010:40:100
13829910313,70cyclictest0-21swapper/008:55:150
13829910312,71cyclictest0-21swapper/012:05:150
13829910311,73cyclictest0-21swapper/012:25:130
13829910310,77cyclictest0-21swapper/012:35:100
1382991027,75cyclictest503-21snmpd12:00:140
13829910215,70cyclictest0-21swapper/010:50:130
13829910215,68cyclictest0-21swapper/010:35:130
13829910214,71cyclictest0-21swapper/009:40:150
13829910213,70cyclictest0-21swapper/007:35:140
13829910212,76cyclictest0-21swapper/007:40:100
13829910212,75cyclictest0-21swapper/008:50:120
13829910212,71cyclictest0-21swapper/011:25:150
13829910211,73cyclictest0-21swapper/010:05:140
13829910211,71cyclictest0-21swapper/012:10:150
13829910210,72cyclictest0-21swapper/012:15:140
13859910167,22cyclictest26-21ksoftirqd/112:15:151
13859910167,22cyclictest26-21ksoftirqd/107:20:151
1382991019,74cyclictest0-21swapper/008:30:160
13829910117,64cyclictest0-21swapper/011:00:140
13829910113,69cyclictest0-21swapper/010:00:130
13829910113,69cyclictest0-21swapper/010:00:120
13829910112,71cyclictest0-21swapper/011:40:150
13829910112,70cyclictest0-21swapper/008:15:150
13829910111,73cyclictest0-21swapper/009:20:160
13829910111,72cyclictest0-21swapper/011:55:140
13829910111,71cyclictest0-21swapper/008:35:130
13829910111,69cyclictest0-21swapper/010:15:130
13829910110,75cyclictest0-21swapper/007:55:180
13829910014,71cyclictest0-21swapper/007:45:140
13829910013,73cyclictest0-21swapper/011:50:160
13829910013,70cyclictest0-21swapper/007:25:150
13829910011,70cyclictest0-21swapper/009:55:140
13829910011,70cyclictest0-21swapper/009:05:160
13829910010,70cyclictest0-21swapper/011:30:130
138299998,69cyclictest20238-21apt-get08:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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