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2026-08-29 - 18:48
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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 Sat Aug 29, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10456993128,2cyclictest9863-21cron09:25:001
10464993028,1cyclictest649-21gdbus09:40:013
10464993027,2cyclictest21457-21apt12:05:003
1046499300,29cyclictest0-21swapper/312:30:023
10456993028,1cyclictest0-21swapper/108:05:011
1045499300,29cyclictest307-21systemd-journal09:55:010
1045499300,29cyclictest26488-21grep12:15:010
10460992927,1cyclictest0-21swapper/210:10:012
1046099290,1cyclictest6073-21munin-run10:25:012
1046099290,1cyclictest4391-21munin-run08:05:022
10456992927,1cyclictest8698-21munin-run10:30:001
10456992927,1cyclictest6046-21cron10:25:001
10456992926,2cyclictest24553-21perf07:40:011
1045699290,28cyclictest0-21swapper/108:35:141
1045699290,0cyclictest0-21swapper/110:05:141
10454992927,1cyclictest8999-21sh08:15:010
1045499290,28cyclictest10694-21apt-get07:10:120
1045499290,28cyclictest0-21swapper/011:10:140
1045499290,1cyclictest0-21swapper/010:25:030
10464992828,0cyclictest0-21swapper/309:50:013
10464992827,1cyclictest11649-21apt-get08:20:123
10464992827,1cyclictest0-21swapper/311:40:133
10464992827,0cyclictest0-21swapper/309:55:133
1046499280,27cyclictest0-21swapper/307:15:133
1046499280,1cyclictest5218-21perf09:15:003
1046499280,0cyclictest27114-21apt-get10:00:123
10460992826,1cyclictest0-21swapper/210:50:012
1046099280,27cyclictest0-21swapper/208:30:122
10456992828,0cyclictest0-21swapper/111:40:121
10456992825,2cyclictest5195-21basename09:15:011
1045499280,0cyclictest0-21swapper/009:55:140
10464992727,0cyclictest0-21swapper/307:45:113
1046499270,27cyclictest0-21swapper/307:35:133
1046499270,0cyclictest0-21swapper/310:55:133
1046499270,0cyclictest0-21swapper/310:55:133
10460992727,0cyclictest17443-21apt-get09:40:102
10460992727,0cyclictest0-21swapper/210:50:132
10460992727,0cyclictest0-21swapper/208:15:112
10460992727,0cyclictest0-21swapper/208:10:122
10460992725,1cyclictest2900-21perf09:10:002
10456992727,0cyclictest0-21swapper/107:50:021
10456992726,1cyclictest18873-21apt-get10:50:121
1045699270,0cyclictest0-21swapper/111:35:131
1045699270,0cyclictest0-21swapper/110:30:111
1045699270,0cyclictest0-21swapper/108:20:131
10454992727,0cyclictest0-21swapper/010:40:130
10454992726,1cyclictest26262-21apt-get08:50:120
10454992726,1cyclictest0-21swapper/011:20:010
10454992725,1cyclictest307-21systemd-journal11:00:000
10454992725,1cyclictest307-21systemd-journal11:00:000
10464992626,0cyclictest0-21swapper/308:05:143
10464992625,1cyclictest7268-21kworker/u8:208:25:133
10460992626,0cyclictest0-21swapper/211:45:132
10460992626,0cyclictest0-21swapper/209:45:112
10460992626,0cyclictest0-21swapper/209:15:142
10460992624,1cyclictest0-21swapper/207:40:002
10456992626,0cyclictest28235-21apt-get11:10:131
10456992626,0cyclictest12477-21apt-get09:30:101
10456992625,1cyclictest22045-21apt-get12:05:121
10454992626,0cyclictest0-21swapper/011:20:120
10454992626,0cyclictest0-21swapper/010:20:130
10454992626,0cyclictest0-21swapper/007:50:120
10454992625,1cyclictest19220-21apt-get08:35:130
10454992624,1cyclictest19471-21cron09:45:000
10464992525,0cyclictest442-21apt-get11:20:123
10464992525,0cyclictest29438-21apt-get10:05:133
10464992525,0cyclictest0-21swapper/307:10:133
10464992524,1cyclictest30076-21apt-get07:50:123
10464992523,1cyclictest535-21perf09:04:593
10460992525,0cyclictest0-21swapper/208:45:132
10460992523,1cyclictest0-21swapper/211:35:012
10456992525,0cyclictest442-21apt-get11:20:121
10456992525,0cyclictest30076-21apt-get07:50:131
10456992525,0cyclictest0-21swapper/112:30:131
10456992525,0cyclictest0-21swapper/110:45:141
10456992525,0cyclictest0-21swapper/110:40:131
10456992525,0cyclictest0-21swapper/109:25:111
10456992525,0cyclictest0-21swapper/108:50:131
10454992525,0cyclictest0-21swapper/010:05:130
10454992525,0cyclictest0-21swapper/007:55:130
10454992525,0cyclictest0-21swapper/007:40:140
10454992525,0cyclictest0-21swapper/007:35:130
10464992424,0cyclictest0-21swapper/312:15:123
10464992424,0cyclictest0-21swapper/310:30:013
10464992424,0cyclictest0-21swapper/309:25:013
10464992423,1cyclictest21457-21apt-get12:05:013
10460992424,0cyclictest0-21swapper/211:50:112
10460992424,0cyclictest0-21swapper/211:05:112
10460992423,0cyclictest32403-21apt-get07:55:142
10460992422,1cyclictest0-21swapper/210:40:002
10456992424,0cyclictest4651-21apt-get08:05:131
10456992424,0cyclictest24769-21apt-get09:55:141
10456992424,0cyclictest0-21swapper/112:00:011
10456992424,0cyclictest0-21swapper/111:00:131
10454992424,0cyclictest26887-21apt-get07:45:020
10454992424,0cyclictest0-21swapper/007:25:020
10464992323,0cyclictest24832-21apt-get07:40:133
10464992323,0cyclictest0-21swapper/310:10:103
10464992323,0cyclictest0-21swapper/308:40:133
10464992322,1cyclictest4870-21munin-run11:30:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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