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2025-11-22 - 22:01
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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 50 highest latencies:
System rack3slot6.osadl.org (updated Sat Nov 22, 2025 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
86799911078,20cyclictest0-21swapper/009:30:260
86799910975,23cyclictest0-21swapper/009:15:170
86799910574,16cyclictest14-21ksoftirqd/007:30:150
8463210414,38sleep00-21swapper/007:09:060
86799910174,18cyclictest14-21ksoftirqd/012:25:150
86799910170,22cyclictest14-21ksoftirqd/009:25:150
8679999869,18cyclictest14-21ksoftirqd/009:05:120
8679999771,16cyclictest0-21swapper/011:30:130
8685999310,60cyclictest0-21swapper/110:00:131
8685999127,43cyclictest26-21ksoftirqd/108:25:161
817529123,20sleep10-21swapper/107:06:341
8679999060,20cyclictest14-21ksoftirqd/008:35:150
8679998961,19cyclictest14-21ksoftirqd/007:50:170
8679998960,17cyclictest14-21ksoftirqd/011:10:120
8685998812,56cyclictest0-21swapper/109:50:181
8679998612,61cyclictest0-21swapper/011:55:160
8679998522,51cyclictest0-21swapper/010:55:120
8679998520,55cyclictest0-21swapper/007:15:140
8679998514,57cyclictest0-21swapper/012:15:160
8679998512,40cyclictest19503-21diskmemload09:10:120
8679998511,65cyclictest0-21swapper/008:10:140
8685998410,56cyclictest0-21swapper/111:00:141
8679998457,16cyclictest14-21ksoftirqd/010:30:170
8679998454,19cyclictest14-21ksoftirqd/010:10:170
8679998452,20cyclictest14-21ksoftirqd/012:30:150
8679998415,55cyclictest0-21swapper/007:55:150
867999829,57cyclictest32503-21taskset08:15:160
8679998222,47cyclictest0-21swapper/007:20:160
8679998216,58cyclictest0-21swapper/011:40:140
8679998214,56cyclictest0-21swapper/009:35:150
868599819,55cyclictest0-21swapper/108:50:161
8685998112,50cyclictest0-21swapper/108:30:161
8685998111,20cyclictest0-21swapper/112:20:141
8679998115,55cyclictest0-21swapper/008:45:230
8679998113,56cyclictest0-21swapper/008:30:140
8679998112,56cyclictest0-21swapper/010:00:150
8679998111,57cyclictest0-21swapper/009:55:150
8679998111,56cyclictest0-21swapper/007:35:130
868599809,54cyclictest0-21swapper/111:35:141
8685998028,14cyclictest26-21ksoftirqd/110:10:041
867999809,66cyclictest0-21swapper/009:20:270
8679998015,57cyclictest0-21swapper/011:50:150
8679998015,53cyclictest0-21swapper/011:25:120
8679998015,53cyclictest0-21swapper/010:50:140
8679998014,57cyclictest0-21swapper/010:45:140
8679998014,55cyclictest0-21swapper/009:45:170
8679998013,54cyclictest0-21swapper/011:15:190
868599797,25cyclictest0-21swapper/110:20:261
868599796,56cyclictest0-21swapper/110:40:151
867999797,57cyclictest22946-21apt-get12:20:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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