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2025-11-28 - 15:34
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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 Fri Nov 28, 2025 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3024321120,7chrt30247-21latency_hist07:15:010
2700421060,6chrt27002-21needreboot10:05:271
1053421050,5chrt10532-21sed07:45:470
28571998813,61cyclictest0-21swapper/107:30:121
2857199849,61cyclictest6974-21diskmemload09:10:101
28571998412,61cyclictest0-21swapper/109:40:131
28567998428,50cyclictest15682-21cron09:35:010
28571998312,60cyclictest0-21swapper/108:00:121
28571998312,57cyclictest0-21swapper/110:10:161
2857199827,63cyclictest22890-21apt-get09:55:141
2857199827,62cyclictest1547-21apt-get08:55:121
28571998213,57cyclictest0-21swapper/111:10:141
28571998213,56cyclictest0-21swapper/112:10:121
28571998212,55cyclictest0-21swapper/111:45:151
2857199817,59cyclictest30909-21apt-get07:15:121
28571998112,54cyclictest0-21swapper/111:50:141
2856799816,64cyclictest0-21swapper/007:30:110
28567998127,49cyclictest17490-21ls09:40:000
2856799812,41cyclictest18836-21apt-get11:15:120
2857199809,58cyclictest19412-21apt-get09:45:141
2857199807,60cyclictest32677-21apt-get07:20:151
2857199807,60cyclictest15307-21apt-get11:05:231
2857199807,59cyclictest5466-21apt-get07:35:131
28571998015,51cyclictest0-21swapper/112:05:151
28571998013,53cyclictest0-21swapper/108:25:131
28571998013,52cyclictest0-21swapper/108:45:131
28571998012,58cyclictest0-21swapper/111:00:151
28571998012,54cyclictest0-21swapper/107:40:161
28571998012,54cyclictest0-21swapper/107:40:151
28571998011,54cyclictest0-21swapper/108:30:101
2856799806,57cyclictest17671-21apt-get09:40:120
2856799806,57cyclictest14697-21apt-get08:00:130
2857199797,60cyclictest24649-21apt-get10:00:151
2857199797,56cyclictest4474-21apt-get10:35:111
28571997915,53cyclictest0-21swapper/111:15:121
28571997913,55cyclictest0-21swapper/112:00:121
28571997912,57cyclictest0-21swapper/112:15:131
28571997912,57cyclictest0-21swapper/109:30:151
28571997912,57cyclictest0-21swapper/108:10:101
28571997912,55cyclictest0-21swapper/112:25:101
28571997912,54cyclictest0-21swapper/109:05:141
28571997912,52cyclictest0-21swapper/111:20:131
2856799797,59cyclictest0-21swapper/011:05:240
2856799797,57cyclictest26387-21apt-get10:05:120
2856799796,59cyclictest0-21swapper/009:55:140
2856799795,65cyclictest12703-21apt-get12:30:150
28567997913,60cyclictest17415-21expr11:10:180
2857199787,55cyclictest9772-21apt-get10:50:151
2857199787,54cyclictest8886-21apt-get09:15:161
2857199786,56cyclictest14440-21apt-get12:35:151
2857199786,56cyclictest14440-21apt-get12:35:151
28571997814,52cyclictest0-21swapper/112:30:181
28571997812,54cyclictest0-21swapper/110:55:121
28571997811,55cyclictest0-21swapper/109:00:241
2856799788,58cyclictest0-21swapper/009:25:120
2856799787,61cyclictest0-21swapper/010:10:150
2856799786,60cyclictest5712-21apt-get12:10:130
2856799786,60cyclictest0-21swapper/008:30:110
2856799786,59cyclictest0-21swapper/008:05:130
2856799786,58cyclictest0-21swapper/008:55:130
2856799785,63cyclictest7138-21apt-get09:10:100
2681727819,49sleep00-21swapper/007:05:070
2857199777,56cyclictest26937-21apt-get08:35:111
2857199777,53cyclictest19961-21apt-get08:15:121
28571997712,53cyclictest0-21swapper/107:50:141
28571997711,56cyclictest0-21swapper/111:55:121
28571997711,55cyclictest0-21swapper/109:20:141
2856799777,60cyclictest0-21swapper/007:15:130
2856799776,61cyclictest0-21swapper/007:35:130
2856799776,59cyclictest0-21swapper/007:20:140
2856799776,58cyclictest5350-21apt-get09:05:150
2857199768,54cyclictest12932-21apt-get07:55:121
2857199767,54cyclictest998-21apt-get10:25:141
2857199767,54cyclictest24080-21apt-get11:30:131
2857199767,53cyclictest9221-21apt-get12:20:151
2857199767,53cyclictest21150-21apt-get09:50:141
2857199766,54cyclictest31681-21apt-get10:20:101
28571997611,56cyclictest0-21swapper/108:50:141
2856799769,57cyclictest0-21swapper/010:25:150
2856799767,60cyclictest0-21swapper/010:45:140
2856799767,59cyclictest0-21swapper/010:50:150
2856799767,58cyclictest0-21swapper/008:15:130
2856799767,57cyclictest0-21swapper/012:05:130
2856799766,61cyclictest0-21swapper/011:30:140
2856799766,59cyclictest0-21swapper/010:35:110
2856799765,59cyclictest0-21swapper/007:55:110
2856799764,67cyclictest0-21swapper/010:23:070
2856799763,67cyclictest21895-21taskset11:22:100
2856799763,66cyclictest11839-21df10:55:190
28567997626,43cyclictest2760-21/usr/sbin/munin10:30:160
2856799762,56cyclictest1378-21idleruntime-cro08:55:010
2857199757,52cyclictest9457-21apt-get07:45:251
2857199756,55cyclictest15864-21apt-get09:35:151
2856799757,60cyclictest0-21swapper/009:45:140
2856799757,60cyclictest0-21swapper/008:35:110
2856799757,59cyclictest0-21swapper/008:40:130
2856799756,59cyclictest0-21swapper/012:35:160
2856799756,59cyclictest0-21swapper/012:35:150
2856799756,57cyclictest0-21swapper/010:00:160
2856799755,56cyclictest7450-21apt-get12:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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