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2026-05-11 - 05:49
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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 Mon May 11, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27835210131,23sleep10-21swapper/119:09:531
2697129824,26sleep00-21swapper/019:05:270
2798299827,61cyclictest26525-21taskset20:35:130
27982998211,59cyclictest0-21swapper/019:10:130
27982998210,59cyclictest0-21swapper/019:15:130
2798699818,57cyclictest0-21swapper/121:25:121
2798299818,58cyclictest0-21swapper/020:20:120
2798299817,62cyclictest6416-21apt-get21:10:120
2798299817,61cyclictest23930-21apt-get22:00:130
27982998139,31cyclictest0-21swapper/000:10:120
27982998139,31cyclictest0-21swapper/000:10:120
2798699809,57cyclictest0-21swapper/119:50:231
2798699806,65cyclictest26520-21apt-get20:35:131
2798699798,57cyclictest0-21swapper/122:00:131
2798699796,61cyclictest0-21swapper/121:10:121
2798299799,61cyclictest0-21swapper/022:55:120
2798299793,70cyclictest27186-21latency_hist23:40:020
27982997931,42cyclictest8809-21strings21:15:290
27982997911,61cyclictest0-21swapper/000:26:090
27982997911,59cyclictest0-21swapper/020:25:120
2798699788,59cyclictest0-21swapper/120:15:241
2798699788,57cyclictest0-21swapper/119:25:141
2798699788,55cyclictest0-21swapper/100:05:131
2798699787,58cyclictest0-21swapper/122:20:141
2798699787,55cyclictest24779-21apt-get20:30:141
2798299789,60cyclictest0-21swapper/000:35:130
2798299788,55cyclictest0-21swapper/023:30:120
2798299787,57cyclictest11656-21apt-get21:25:120
2798299786,59cyclictest31269-21apt-get22:20:140
27982997810,58cyclictest0-21swapper/021:55:140
2798699779,55cyclictest0-21swapper/122:05:141
2798699778,55cyclictest0-21swapper/123:35:161
2798699777,53cyclictest12390-21apt-get00:26:091
2798699776,59cyclictest28065-21apt-get19:10:131
2798699776,56cyclictest0-21swapper/121:00:131
2798699775,61cyclictest21300-21apt-get20:20:121
2798699775,57cyclictest2410-21apt-get00:00:141
2798299778,59cyclictest0-21swapper/020:30:140
2798299776,59cyclictest17496-21apt-get20:10:120
2798299776,59cyclictest13970-21apt-get20:00:140
2798299776,54cyclictest19536-21apt-get20:15:240
2798299774,66cyclictest3049-21ntp_states22:30:310
2798299773,67cyclictest12964-21dpkg00:30:110
2798699769,56cyclictest0-21swapper/122:15:251
2798699767,59cyclictest0-21swapper/120:40:121
2798699766,52cyclictest11085-21apt-get22:55:121
2798699765,59cyclictest8159-21apt-get21:15:151
2798299769,59cyclictest0-21swapper/020:55:120
2798299769,59cyclictest0-21swapper/019:35:120
2798299769,58cyclictest0-21swapper/022:45:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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