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2026-05-31 - 09:54
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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 May 31, 2026 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13694210831,24sleep10-21swapper/119:08:401
13694210831,24sleep10-21swapper/119:08:401
13516210017,37sleep00-21swapper/019:06:460
13516210017,37sleep00-21swapper/019:06:450
14008997825,44cyclictest23375-21apt-get19:35:110
14008997642,23cyclictest22346-21apt-get00:05:130
1400899756,60cyclictest1201-21apt-get21:35:140
14008997543,20cyclictest18157-21apt-get19:20:120
14008997543,20cyclictest18157-21apt-get19:20:120
14008997336,23cyclictest0-21swapper/000:20:120
14008997335,25cyclictest0-21swapper/020:15:130
14008997314,52cyclictest0-21swapper/021:20:140
14008997244,18cyclictest15264-21apt-get22:15:140
14008997238,24cyclictest19892-21apt-get19:25:120
1400899717,52cyclictest31111-21apt-get00:30:110
14008997137,21cyclictest0-21swapper/019:16:420
14011997013,11cyclictest0-21swapper/100:20:241
14008997042,15cyclictest28965-21apt-get19:50:130
14008997037,23cyclictest0-21swapper/022:50:120
14008997037,23cyclictest0-21swapper/022:50:120
14008997034,26cyclictest0-21swapper/022:45:120
14008997034,23cyclictest0-21swapper/021:15:160
14008997033,23cyclictest0-21swapper/023:30:120
14011996937,18cyclictest26-21ksoftirqd/121:33:061
14008996940,14cyclictest13522-21apt-get22:10:130
14008996936,17cyclictest14-21ksoftirqd/000:00:040
14008996935,25cyclictest0-21swapper/021:50:120
14008996932,25cyclictest25188-21apt-get19:40:130
14008996843,15cyclictest24912-21apt-get21:10:150
14008996843,15cyclictest24912-21apt-get21:10:150
14008996839,14cyclictest20508-21apt-get22:30:130
14008996839,13cyclictest17038-21taskset22:20:140
14008996838,14cyclictest386-21apt-get00:35:130
14008996835,25cyclictest0-21swapper/023:10:120
14008996835,17cyclictest21637-21apt-get19:30:150
14008996832,24cyclictest0-21swapper/020:55:220
14008996746,13cyclictest14086-21apt-get19:10:120
14008996746,11cyclictest25872-21apt-get00:15:120
14008996739,14cyclictest1775-21apt-get20:05:130
14008996738,15cyclictest10544-21apt-get20:30:110
14008996737,15cyclictest18807-21apt-get23:55:150
14008996736,24cyclictest0-21swapper/023:35:150
14008996736,14cyclictest8295-21apt-get23:25:130
14008996735,26cyclictest0-21swapper/021:25:130
14008996735,25cyclictest0-21swapper/021:45:140
14008996735,23cyclictest4789-21apt-get23:15:230
14008996735,21cyclictest0-21swapper/021:40:130
14008996734,25cyclictest0-21swapper/000:25:130
14008996733,25cyclictest0-21swapper/000:10:130
14008996733,23cyclictest12287-21apt-get20:35:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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