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2025-11-27 - 19:56
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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 rackeslot5.osadl.org (updated Thu Nov 27, 2025 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2290399320,1cyclictest28228-21kworker/u8:212:25:102
2290399313,4cyclictest29870-21latency_hist07:25:012
2290399311,1cyclictest303-21systemd-journal11:15:002
2290399310,0cyclictest0-21swapper/211:40:122
2290299300,29cyclictest609-21dbus-daemon08:05:021
2290299300,29cyclictest10661-21cron11:20:011
2290199300,29cyclictest19708-21turbostat10:30:000
22907992925,4cyclictest0-21swapper/308:00:113
2290799290,28cyclictest2536-21apt-get12:10:143
2290799290,28cyclictest16533-21apt-get08:05:113
2290799290,1cyclictest14485-21apt-get12:35:113
2290399290,28cyclictest11866-21apt-get07:55:112
2290399290,28cyclictest0-21swapper/212:15:132
2290299290,28cyclictest0-21swapper/107:55:001
2290199290,28cyclictest31459-21load08:35:140
2290199290,28cyclictest2436-21apt-get07:35:110
2290199290,28cyclictest12163-21apt-get12:30:130
22907992828,0cyclictest0-21swapper/312:15:143
22907992827,1cyclictest19179-21perf09:20:003
2290799280,0cyclictest0-21swapper/307:30:123
22903992828,0cyclictest0-21swapper/207:30:122
2290399280,27cyclictest0-21swapper/212:10:142
22902992828,0cyclictest28186-21apt-get08:30:111
22902992827,0cyclictest20878-21apt-get11:40:121
2290299280,28cyclictest0-21swapper/107:55:111
2290299280,0cyclictest0-21swapper/108:40:101
22901992828,0cyclictest0-21swapper/008:05:120
2290199280,0cyclictest0-21swapper/010:10:140
22907992727,0cyclictest0-21swapper/311:40:133
22907992727,0cyclictest0-21swapper/310:35:123
22907992727,0cyclictest0-21swapper/308:55:123
22907992727,0cyclictest0-21swapper/308:10:113
22903992727,0cyclictest0-21swapper/212:35:122
22903992727,0cyclictest0-21swapper/208:05:112
2290399270,0cyclictest0-21swapper/210:15:132
22902992727,0cyclictest4460-21file07:39:491
22902992727,0cyclictest0-21swapper/110:45:141
22902992727,0cyclictest0-21swapper/108:05:121
22902992725,1cyclictest9247-21cron07:50:001
22902992725,1cyclictest1-21systemd10:10:001
22902992725,1cyclictest0-21swapper/111:35:001
22901992727,0cyclictest18531-21apt-get11:35:130
22901992726,1cyclictest3948-21apt-get11:05:120
2290199270,0cyclictest0-21swapper/011:50:120
22907992626,0cyclictest0-21swapper/312:25:113
22907992626,0cyclictest0-21swapper/308:30:123
22907992624,1cyclictest0-21swapper/310:50:013
22903992626,0cyclictest18531-21apt-get11:35:122
22902992626,0cyclictest0-21swapper/112:15:121
22902992626,0cyclictest0-21swapper/110:10:141
22902992626,0cyclictest0-21swapper/108:45:151
22902992626,0cyclictest0-21swapper/108:45:151
22901992626,0cyclictest3126-21apt-get08:45:150
22901992626,0cyclictest3126-21apt-get08:45:150
22901992624,1cyclictest11872-21cron12:30:010
22901992624,1cyclictest0-21swapper/008:55:010
22907992525,0cyclictest0-21swapper/310:15:133
22907992525,0cyclictest0-21swapper/308:20:113
22907992523,1cyclictest0-21swapper/307:35:123
22903992525,0cyclictest22320-21apt-get10:35:122
22903992525,0cyclictest0-21swapper/208:55:122
22903992525,0cyclictest0-21swapper/208:10:122
22903992524,1cyclictest19176-21munin-run09:19:592
22903992522,3cyclictest0-21swapper/208:00:102
22902992525,0cyclictest0-21swapper/112:00:111
22902992525,0cyclictest0-21swapper/110:15:141
22901992525,0cyclictest0-21swapper/009:00:100
22901992524,1cyclictest7774-21apt-get08:55:110
22907992421,2cyclictest15648-21basename11:30:013
22903992424,0cyclictest14226-21perf12:35:002
22903992424,0cyclictest0-21swapper/208:30:122
22901992422,1cyclictest0-21swapper/012:10:010
22907992323,0cyclictest0-21swapper/309:25:003
22907992323,0cyclictest0-21swapper/307:40:153
22903992323,0cyclictest0-21swapper/208:20:112
22902992323,0cyclictest0-21swapper/112:25:111
22902992323,0cyclictest0-21swapper/109:20:131
22902992323,0cyclictest0-21swapper/108:15:131
22901992321,1cyclictest3655-21cron11:05:010
22907992222,0cyclictest0-21swapper/307:55:123
22907992221,0cyclictest0-21swapper/309:55:123
22903992221,1cyclictest4896-21apt-get07:40:152
22903992221,1cyclictest29060-21perf10:50:012
22903992220,1cyclictest21507-21munin-run09:25:002
22903992219,2cyclictest15621-21perf11:30:012
22902992222,0cyclictest0-21swapper/111:05:121
22902992222,0cyclictest0-21swapper/107:30:131
22902992220,1cyclictest30858-21cron09:45:011
22901992222,0cyclictest0-21swapper/008:00:100
22901992219,2cyclictest609-21dbus-daemon09:09:590
22907992121,0cyclictest0-21swapper/308:40:123
22903992121,0cyclictest0-21swapper/207:35:122
22901992121,0cyclictest0-21swapper/012:00:100
22901992121,0cyclictest0-21swapper/008:15:120
22907992020,0cyclictest0-21swapper/310:25:103
22907992020,0cyclictest0-21swapper/309:30:133
22907992019,0cyclictest0-21swapper/310:50:123
22903992019,0cyclictest779-21apt-get08:40:112
22902992020,0cyclictest0-21swapper/112:10:131
22901992020,0cyclictest0-21swapper/007:45:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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