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2025-12-18 - 02:21
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Thu Dec 18, 2025 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31858999116,59cyclictest0-21swapper/122:10:141
99892900,4sleep19991-21sh00:10:171
31858998914,60cyclictest0-21swapper/123:10:111
3185299894,61cyclictest0-21swapper/021:49:060
3086328934,38sleep00-21swapper/019:05:230
31858998814,59cyclictest0-21swapper/123:20:161
3185899873,19cyclictest10545-21latency21:10:261
31858998615,58cyclictest0-21swapper/123:30:141
31858998614,61cyclictest0-21swapper/123:35:151
3185299864,62cyclictest0-21swapper/021:06:010
31858998515,58cyclictest0-21swapper/120:00:151
31858998515,57cyclictest0-21swapper/119:40:241
31858998515,56cyclictest0-21swapper/119:20:151
31858998514,59cyclictest0-21swapper/121:25:141
31858998514,58cyclictest0-21swapper/123:15:151
31858998514,58cyclictest0-21swapper/100:30:231
31858998511,18cyclictest20983-21aten2.4-expect21:40:271
31858998416,56cyclictest0-21swapper/122:50:131
31858998416,53cyclictest0-21swapper/120:10:101
31858998415,55cyclictest0-21swapper/100:20:111
3185299842,19cyclictest6099-21mandb00:00:010
31852998419,58cyclictest19811-21cpuspeed20:05:190
31858998316,57cyclictest0-21swapper/123:05:141
31858998315,55cyclictest0-21swapper/119:55:111
31858998313,57cyclictest0-21swapper/122:00:141
3185299836,70cyclictest0-21swapper/020:25:120
3185899827,65cyclictest1025-21apt-get23:45:221
3185899827,59cyclictest8759-21apt-get19:35:141
3185899826,61cyclictest10068-21apt-get22:40:151
3185899826,61cyclictest10068-21apt-get22:40:151
3185899824,16cyclictest31187-21idleruntime-cro22:10:001
31858998214,58cyclictest0-21swapper/119:45:131
31858998213,56cyclictest0-21swapper/120:15:161
3185299826,69cyclictest0-21swapper/021:35:130
3185899816,63cyclictest26116-21apt-get23:25:131
31858998116,53cyclictest0-21swapper/100:35:151
31858998115,54cyclictest0-21swapper/119:25:131
31858998114,53cyclictest0-21swapper/120:05:161
3185299815,64cyclictest24380-21apt-get23:20:150
3185299815,63cyclictest20873-21apt-get23:10:110
3185899807,58cyclictest2765-21apt-get23:50:111
3185899806,63cyclictest24317-21apt-get21:50:131
3185899806,58cyclictest1775-21apt-get19:15:121
31858998015,55cyclictest0-21swapper/100:15:141
31858998015,54cyclictest0-21swapper/122:20:231
31858998015,52cyclictest0-21swapper/100:05:151
31858998015,52cyclictest0-21swapper/100:05:141
31858998014,56cyclictest0-21swapper/121:55:101
31858998014,55cyclictest0-21swapper/120:45:121
3185299807,61cyclictest23119-21apt-get20:15:160
3185299803,71cyclictest17157-21munin-run23:00:010
3185899796,57cyclictest11744-21apt-get21:15:121
3185299797,65cyclictest0-21swapper/019:50:130
3185299796,62cyclictest27820-21apt-get22:00:130
3185299796,60cyclictest10875-21apt-get19:40:230
3185299796,58cyclictest0-21swapper/023:45:210
3185299795,58cyclictest29602-21apt-get23:35:140
3185899787,57cyclictest658-21apt-get22:15:141
3185899787,54cyclictest22583-21apt-get21:45:131
3185899786,63cyclictest13509-21apt-get21:20:121
3185899786,61cyclictest31933-21apt-get19:10:091
3185899786,59cyclictest14353-21apt-get19:50:141
3185899786,55cyclictest15590-21apt-get22:55:131
31858997814,53cyclictest0-21swapper/122:30:131
3185299787,64cyclictest0-21swapper/020:55:130
3185299786,64cyclictest0-21swapper/021:00:150
3185299786,62cyclictest31348-21apt-get22:10:150
3185299786,60cyclictest27858-21apt-get23:30:130
3185299786,60cyclictest22618-21apt-get23:15:160
3185299782,16cyclictest9747-21latency_hist00:10:020
3185299782,16cyclictest9747-21latency_hist00:10:020
3185899777,55cyclictest17351-21apt-get23:00:121
3185899777,53cyclictest6302-21apt-get00:00:141
3185899776,60cyclictest2971-21apt-get20:50:141
3185899776,55cyclictest8210-21apt-get21:05:151
3185899775,56cyclictest24882-21apt-get20:20:131
3185899774,68cyclictest20355-21apt-get21:40:021
31858997714,52cyclictest0-21swapper/121:30:111
3185299777,63cyclictest0-21swapper/000:10:140
3185299776,64cyclictest0-21swapper/020:35:150
3185299776,63cyclictest0-21swapper/020:50:120
3185299776,55cyclictest12614-21apt-get19:45:130
3185299774,50cyclictest0-21swapper/023:06:070
3185299774,49cyclictest0-21swapper/023:51:070
31852997726,45cyclictest2231-21cat20:45:340
3185899767,56cyclictest7019-21apt-get19:30:141
3185899766,55cyclictest31407-21apt-get23:40:101
3185299766,63cyclictest10000-21apt-get21:10:150
3185299766,58cyclictest13853-21apt-get22:50:120
3185299766,55cyclictest0-21swapper/021:50:130
3185299766,54cyclictest0-21swapper/019:10:090
3185299765,64cyclictest0-21swapper/022:45:240
3185299762,14cyclictest20986-21telnet21:40:270
3185899757,60cyclictest4506-21apt-get23:55:121
3185899757,51cyclictest4709-21apt-get20:55:151
3185899756,57cyclictest30104-21apt-get20:35:131
3185299758,60cyclictest0-21swapper/019:30:140
3185299758,57cyclictest0-21swapper/019:20:120
3185299757,57cyclictest0-21swapper/022:40:150
3185299757,57cyclictest0-21swapper/022:40:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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