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2025-12-13 - 19:06
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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 Sat Dec 13, 2025 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6691998921,62cyclictest17916-31find07:41:130
6698998817,57cyclictest0-21swapper/111:10:131
6698998815,63cyclictest0-21swapper/108:00:131
6698998715,62cyclictest0-21swapper/108:10:161
6698998715,60cyclictest0-21swapper/108:55:141
6698998614,61cyclictest0-21swapper/109:50:141
6698998614,56cyclictest0-21swapper/107:45:131
6698998518,54cyclictest0-21swapper/111:35:151
6698998513,57cyclictest0-21swapper/109:40:351
6698998415,57cyclictest0-21swapper/109:00:141
6698998415,56cyclictest0-21swapper/108:35:161
6698998415,52cyclictest0-21swapper/111:20:131
6698998414,57cyclictest0-21swapper/110:05:151
6698998414,54cyclictest0-21swapper/107:55:121
6698998412,57cyclictest0-21swapper/110:55:131
6698998410,62cyclictest548-21runrttasks11:25:151
669899837,64cyclictest19102-21apt-get09:15:121
6698998317,56cyclictest0-21swapper/109:55:181
6698998315,55cyclictest0-21swapper/108:20:231
6698998315,55cyclictest0-21swapper/107:30:131
6698998315,54cyclictest0-21swapper/109:45:161
6691998332,45cyclictest31669-21apt-get09:50:130
669899827,58cyclictest2771-21apt-get11:30:151
6698998217,54cyclictest0-21swapper/110:00:161
6698998216,57cyclictest0-21swapper/112:20:141
6698998215,56cyclictest0-21swapper/111:40:141
6698998215,56cyclictest0-21swapper/111:40:131
6698998215,56cyclictest0-21swapper/107:35:161
6698998215,53cyclictest0-21swapper/108:05:141
6698998214,55cyclictest0-21swapper/110:10:151
6698998213,59cyclictest0-21swapper/111:05:141
669899817,62cyclictest11536-21apt-get11:55:141
669899817,58cyclictest20863-21apt-get09:20:141
669899816,63cyclictest10790-21apt-get07:20:151
6698998116,55cyclictest0-21swapper/107:10:091
6698998115,51cyclictest14856-21apt-get12:05:141
6698998114,53cyclictest0-21swapper/111:45:131
6698998114,53cyclictest0-21swapper/110:45:151
669199816,63cyclictest2748-21apt-get10:00:150
669199812,17cyclictest9580-21taskset11:49:370
669899807,57cyclictest24098-21apt-get12:30:131
6698998028,43cyclictest448-21dbus-daemon10:30:001
6698998015,57cyclictest0-21swapper/110:50:171
6698998015,54cyclictest0-21swapper/111:15:131
6698998014,57cyclictest0-21swapper/108:40:191
6698998014,53cyclictest0-21swapper/107:25:151
6698998014,51cyclictest0-21swapper/112:25:161
669199806,59cyclictest24922-21apt-get08:00:140
669199803,48cyclictest22926-21runrttasks07:54:240
15702800,8sleep10-21swapper/108:25:131
669899797,61cyclictest22604-21apt-get09:25:131
6698997921,52cyclictest18360-21cat07:40:291
6698997916,52cyclictest0-21swapper/109:10:261
6698997915,49cyclictest0-21swapper/107:50:131
669199796,65cyclictest0-21swapper/009:45:140
669199796,61cyclictest28216-21apt-get11:10:130
669199796,58cyclictest28447-21apt-get08:10:150
6691997929,44cyclictest3310-21apt-get08:30:160
6698997813,56cyclictest0-21swapper/109:35:171
6698997813,55cyclictest0-21swapper/108:30:151
669199787,63cyclictest0-21swapper/010:40:170
669199786,61cyclictest4489-21apt-get10:05:150
506127837,24sleep10-21swapper/107:05:141
669899776,61cyclictest9797-21apt-get11:50:161
669899776,57cyclictest13293-21apt-get12:00:141
669899776,53cyclictest8604-21apt-get08:45:151
669199776,61cyclictest28223-21apt-get09:40:350
669199775,56cyclictest26428-21apt-get11:05:140
669199773,67cyclictest10043-21cpuspeed_turbos11:50:190
669899767,54cyclictest24643-21apt-get09:30:231
669199768,56cyclictest0-21swapper/011:30:150
669199766,61cyclictest22930-21apt-get10:55:140
669199765,56cyclictest1030-21apt-get11:25:150
669199762,66cyclictest12761-21/usr/sbin/munin08:55:280
6691997625,45cyclictest7340-21irqstats08:40:310
669899757,54cyclictest9024-21apt-get07:15:111
669899757,54cyclictest15606-21apt-get10:35:161
669899756,57cyclictest25839-21apt-get12:35:151
669899756,52cyclictest10341-21apt-get08:50:161
669899756,52cyclictest10341-21apt-get08:50:151
669199757,61cyclictest0-21swapper/012:30:120
669199757,55cyclictest0-21swapper/007:20:160
669199756,59cyclictest19690-21apt-get07:45:130
669199756,57cyclictest4510-21apt-get11:35:150
669199755,60cyclictest23160-21apt-get07:55:110
669199755,59cyclictest5050-21apt-get08:35:160
669199755,58cyclictest14271-21apt-get07:30:130
669199755,58cyclictest12530-21apt-get07:25:150
6691997525,44cyclictest25609-21cat09:30:440
6691997522,48cyclictest448-21dbus-daemon12:05:000
669199751,68cyclictest24184-21awk09:30:000
669899747,57cyclictest18858-21apt-get12:15:131
669899746,58cyclictest17121-21apt-get12:10:141
6698997420,49cyclictest448-21dbus-daemon10:20:011
6698997414,52cyclictest0-21swapper/110:40:141
669199747,59cyclictest0-21swapper/007:15:110
669199747,57cyclictest0-21swapper/009:20:140
669199746,57cyclictest13836-21apt-get09:00:140
669199746,56cyclictest0-21swapper/011:55:140
669199746,55cyclictest21191-21apt-get10:50:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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