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2025-11-08 - 23:33
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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 Sat Nov 08, 2025 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12244211232,67sleep10-21swapper/107:05:111
379321020,7sleep1261ksoftirqd/108:10:001
139859910175,17cyclictest14-21ksoftirqd/011:00:160
13985999869,16cyclictest14-21ksoftirqd/012:35:140
219802970,7sleep021979-21ntpq12:00:300
13985999765,18cyclictest14-21ksoftirqd/011:55:180
13985999665,19cyclictest14-21ksoftirqd/010:55:160
13985999465,19cyclictest14-21ksoftirqd/012:15:110
1398599928,71cyclictest25235-21apt-get07:40:150
13985999258,22cyclictest14-21ksoftirqd/008:15:170
13985998856,18cyclictest14-21ksoftirqd/011:10:140
13985998815,61cyclictest0-21swapper/008:50:140
13985998815,61cyclictest0-21swapper/008:50:130
1398599869,64cyclictest30027-21apt-get12:25:150
13985998654,18cyclictest14-21ksoftirqd/009:00:170
13985998614,57cyclictest0-21swapper/012:20:160
13985998513,57cyclictest0-21swapper/011:20:150
13985998454,17cyclictest14-21ksoftirqd/010:37:170
13985998452,19cyclictest14-21ksoftirqd/008:40:130
13985998414,57cyclictest0-21swapper/010:00:120
153252830,5chrt0-21swapper/108:41:141
1398599836,69cyclictest0-21swapper/011:05:360
13985998355,19cyclictest14-21ksoftirqd/009:10:270
13985998350,19cyclictest14-21ksoftirqd/009:05:140
13985998350,19cyclictest14-21ksoftirqd/008:30:160
13985998313,60cyclictest0-21swapper/007:30:170
13985998313,56cyclictest0-21swapper/008:35:140
13985998313,55cyclictest0-21swapper/008:45:150
13985998312,61cyclictest0-21swapper/010:50:140
1398599828,20cyclictest26805-21apt-get10:45:150
1398599824,13cyclictest14421-21diskstats07:10:220
13985998215,58cyclictest0-21swapper/010:30:160
13985998213,56cyclictest0-21swapper/007:50:150
13985998212,56cyclictest0-21swapper/010:10:140
13985998114,56cyclictest0-21swapper/009:55:260
13985998112,58cyclictest0-21swapper/008:05:150
1399199807,21cyclictest0-21swapper/111:05:231
1398599808,57cyclictest12691-21apt-get10:05:130
13985998047,21cyclictest14-21ksoftirqd/011:35:120
1398599803,69cyclictest254-21systemd-journal11:17:590
13985998029,39cyclictest0-21swapper/009:45:130
13985998014,57cyclictest0-21swapper/010:20:150
13985998012,59cyclictest0-21swapper/007:15:120
1398599795,67cyclictest0-21swapper/007:25:280
1398599795,23cyclictest22996-21apt-get12:05:140
13985997918,50cyclictest0-21swapper/009:35:150
13985997914,58cyclictest0-21swapper/007:55:160
13985997913,54cyclictest0-21swapper/011:40:140
1398599788,18cyclictest31769-21apt-get12:30:150
1398599786,20cyclictest27308-21apt-get09:15:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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