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2025-12-11 - 15:53
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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 Dec 11, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
78499393,32cyclictest6495-21perf09:40:010
80099330,15cyclictest0-21swapper/312:10:133
800993228,0cyclictest34-21ksoftirqd/307:30:193
80099300,29cyclictest31479-21cron08:15:003
79599300,1cyclictest303-21systemd-journal11:15:022
789993028,1cyclictest26192-21cron12:40:011
78999300,29cyclictest4633-21cron10:45:011
78999300,29cyclictest3740-21cron08:25:011
78999300,29cyclictest24810-21cron09:10:011
78499300,29cyclictest28266-21cron11:35:010
78499300,1cyclictest303-21systemd-journal11:50:020
79599290,28cyclictest5478-21apt-get11:55:142
79599290,28cyclictest0-21swapper/209:40:122
79599290,28cyclictest0-21swapper/209:00:112
78999290,28cyclictest25104-21apt-get09:10:131
78999290,28cyclictest16865-21perf12:20:001
78999290,28cyclictest0-21swapper/109:35:121
78999290,1cyclictest8455-21cron08:35:001
784992927,1cyclictest16277-21awk11:10:010
800992828,0cyclictest0-21swapper/308:35:143
800992827,0cyclictest6991-21apt-get09:40:113
80099280,27cyclictest0-21swapper/311:20:133
795992828,0cyclictest0-21swapper/210:00:122
795992826,2cyclictest19200-21perf12:25:022
795992817,10cyclictest0-21swapper/212:35:172
79599280,27cyclictest0-21swapper/211:15:132
79599280,27cyclictest0-21swapper/210:00:002
79599280,0cyclictest0-21swapper/210:40:122
78999280,28cyclictest0-21swapper/107:40:131
78999280,0cyclictest2019-21apt-get09:30:121
78999280,0cyclictest0-21swapper/108:50:121
78999280,0cyclictest0-21swapper/108:15:141
78999280,0cyclictest0-21swapper/108:05:101
800992727,0cyclictest22458-21apt-get07:55:153
800992727,0cyclictest0-21swapper/310:25:133
800992727,0cyclictest0-21swapper/309:20:133
800992727,0cyclictest0-21swapper/308:20:123
800992726,1cyclictest0-21swapper/311:10:133
80099270,27cyclictest0-21swapper/312:35:163
80099270,27cyclictest0-21swapper/310:15:133
80099270,27cyclictest0-21swapper/310:00:113
80099270,0cyclictest0-21swapper/310:10:123
80099270,0cyclictest0-21swapper/308:45:143
789992727,0cyclictest18633-21apt-get10:05:121
789992727,0cyclictest0-21swapper/112:20:111
789992727,0cyclictest0-21swapper/109:55:131
784992727,0cyclictest8020-21apt-get07:25:130
784992727,0cyclictest4038-21apt-get08:25:120
784992727,0cyclictest0-21swapper/011:10:120
78499270,0cyclictest13407-21apt-get08:45:120
78499270,0cyclictest0-21swapper/011:55:130
800992626,0cyclictest0-21swapper/308:55:153
795992626,0cyclictest14528-21perf12:15:012
795992626,0cyclictest0-21swapper/212:30:012
795992626,0cyclictest0-21swapper/210:20:122
789992626,0cyclictest0-21swapper/110:50:121
789992626,0cyclictest0-21swapper/108:00:121
784992626,0cyclictest24168-21apt-get12:35:160
784992626,0cyclictest16307-21apt-get10:00:110
800992525,0cyclictest0-21swapper/311:00:123
795992525,0cyclictest0-21swapper/211:00:132
795992525,0cyclictest0-21swapper/210:45:132
789992525,0cyclictest0-21swapper/109:50:001
784992525,0cyclictest0-21swapper/011:35:180
784992525,0cyclictest0-21swapper/008:20:130
784992524,1cyclictest31491-21cron08:15:010
784992524,1cyclictest0-21swapper/007:55:010
800992424,0cyclictest0-21swapper/310:45:123
800992423,1cyclictest25682-21apt-get10:20:133
800992422,1cyclictest3095-21munin-run07:15:013
784992424,0cyclictest0-21swapper/012:05:140
784992424,0cyclictest0-21swapper/007:55:140
784992424,0cyclictest0-21swapper/007:35:140
800992323,0cyclictest12411-21apt-get07:35:033
800992323,0cyclictest0-21swapper/312:25:163
800992322,0cyclictest32656-21apt-get10:35:133
800992321,1cyclictest5420-21munin-run07:20:013
795992323,0cyclictest0-21swapper/211:05:132
795992323,0cyclictest0-21swapper/209:15:132
795992323,0cyclictest0-21swapper/208:40:132
795992323,0cyclictest0-21swapper/207:50:132
795992323,0cyclictest0-21swapper/207:45:142
795992323,0cyclictest0-21swapper/207:35:132
789992323,0cyclictest0-21swapper/109:00:121
784992323,0cyclictest0-21swapper/010:10:110
800992222,0cyclictest0-21swapper/312:00:133
795992222,0cyclictest0-21swapper/207:55:152
789992222,0cyclictest0-21swapper/112:05:141
784992222,0cyclictest0-21swapper/011:20:120
784992221,1cyclictest27428-21apt-get09:15:120
800992121,0cyclictest0-21swapper/311:05:123
800992121,0cyclictest0-21swapper/309:00:113
800992120,0cyclictest2595-21apt-get10:40:123
800992120,0cyclictest0-21swapper/311:55:133
795992121,0cyclictest0-21swapper/211:25:122
795992121,0cyclictest0-21swapper/208:55:152
784992121,0cyclictest12466-21apt-get12:10:120
784992121,0cyclictest0-21swapper/010:15:120
784992121,0cyclictest0-21swapper/008:35:130
800992020,0cyclictest17749-21apt-get07:45:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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