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2025-11-15 - 02:17
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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 Fri Nov 14, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1263499393,19cyclictest5295-21seq10:15:273
1263099310,0cyclictest0-21swapper/210:35:152
12634993028,1cyclictest303-21systemd-journal12:10:013
1263099300,29cyclictest12944-21sh11:45:002
12634992928,0cyclictest5981-21apt-get10:20:153
1263499290,28cyclictest0-21swapper/309:10:123
1263099290,28cyclictest0-21swapper/207:35:132
12625992928,1cyclictest611-21avahi-daemon10:50:001
12625992927,1cyclictest609-21dbus-daemon11:50:001
1262599290,28cyclictest0-21swapper/111:35:011
1262599290,28cyclictest0-21swapper/109:35:131
1262599290,28cyclictest0-21swapper/107:20:141
1262199290,3cyclictest0-21swapper/012:00:200
1262199290,28cyclictest19400-21apt-get09:40:120
1262199290,28cyclictest19400-21apt-get09:40:120
12634992828,0cyclictest13232-21apt-get11:45:133
1263499280,27cyclictest0-21swapper/309:50:003
1263499280,1cyclictest0-21swapper/310:50:013
1263499280,0cyclictest0-21swapper/309:30:123
12630992828,0cyclictest0-21swapper/208:35:132
1263099280,27cyclictest2083-21apt-get12:30:122
1263099280,27cyclictest0-21swapper/209:45:122
12625992828,0cyclictest0-21swapper/111:20:131
1262599280,28cyclictest0-21swapper/111:50:121
1262599280,28cyclictest0-21swapper/108:00:161
12621992828,0cyclictest0-21swapper/011:15:110
12621992828,0cyclictest0-21swapper/010:35:150
1262199280,28cyclictest0-21swapper/007:40:110
1262199280,0cyclictest17548-21apt-get07:20:120
12634992727,0cyclictest29023-21apt-get10:00:143
12634992727,0cyclictest0-21swapper/312:20:133
12634992726,1cyclictest6490-21cron12:40:023
12634992725,1cyclictest27850-21awk08:50:003
1263499270,27cyclictest0-21swapper/311:55:133
12630992727,0cyclictest29852-21apt-get12:20:142
12630992727,0cyclictest18189-21apt-get11:55:132
12630992727,0cyclictest0-21swapper/211:15:122
12630992727,0cyclictest0-21swapper/211:00:002
12625992727,0cyclictest14728-21apt-get09:30:131
12625992727,0cyclictest0-21swapper/110:15:111
12625992727,0cyclictest0-21swapper/109:50:111
12625992727,0cyclictest0-21swapper/109:20:121
12625992726,0cyclictest0-21swapper/110:00:131
12621992727,0cyclictest0-21swapper/011:05:130
12621992727,0cyclictest0-21swapper/008:05:140
12621992727,0cyclictest0-21swapper/007:30:130
1262199270,0cyclictest28135-21apt-get08:50:130
12634992626,0cyclictest32175-21apt-get12:25:143
12634992626,0cyclictest24048-21apt-get09:50:123
12625992626,0cyclictest0-21swapper/111:35:121
12625992626,0cyclictest0-21swapper/108:25:161
12625992626,0cyclictest0-21swapper/108:10:031
12621992626,0cyclictest0-21swapper/012:20:130
12621992624,1cyclictest20874-21perf08:35:000
12634992525,0cyclictest9181-21apt-get08:10:133
12634992525,0cyclictest0-21swapper/309:35:123
12625992525,0cyclictest0-21swapper/111:55:141
12625992523,2cyclictest12668-21idleruntime-cro10:35:011
12621992525,0cyclictest0-21swapper/008:20:120
12621992524,1cyclictest31090-21munin-run10:05:000
12621992524,1cyclictest152002sleep007:15:130
12634992424,0cyclictest0-21swapper/311:35:133
12634992423,1cyclictest32517-21latency_hist09:00:003
12630992424,0cyclictest0-21swapper/208:25:172
12630992424,0cyclictest0-21swapper/207:30:142
12625992424,0cyclictest23492-21apt-get08:40:131
12625992424,0cyclictest0-21swapper/112:20:131
12625992424,0cyclictest0-21swapper/110:50:131
12625992424,0cyclictest0-21swapper/109:25:121
12621992424,0cyclictest0-21swapper/010:25:140
12634992323,0cyclictest0-21swapper/309:20:123
12634992323,0cyclictest0-21swapper/308:00:163
12634992322,1cyclictest8299-21munin-run11:35:013
12634992321,1cyclictest10333-21sh10:30:003
12630992323,0cyclictest0-21swapper/210:30:112
12630992322,1cyclictest0-21swapper/209:10:012
12625992323,0cyclictest0-21swapper/111:20:021
12621992323,0cyclictest0-21swapper/011:40:130
12621992320,2cyclictest1777-21cron12:30:000
12634992222,0cyclictest31924-21apt-get07:50:143
12634992222,0cyclictest0-21swapper/307:45:013
12634992221,1cyclictest14434-21cron09:30:003
12634992220,1cyclictest303-21systemd-journal07:25:013
12630992222,0cyclictest0-21swapper/209:10:122
12630992220,1cyclictest17347-21cron10:45:022
12625992222,0cyclictest0-21swapper/111:45:001
12625992222,0cyclictest0-21swapper/109:40:131
12625992222,0cyclictest0-21swapper/109:40:131
12625992221,1cyclictest25813-21apt-get08:45:121
12621992222,0cyclictest0-21swapper/008:35:130
12621992221,1cyclictest4110-21cron12:35:000
12621992220,1cyclictest303-21systemd-journal11:15:010
12621992220,1cyclictest29586-21perf12:20:010
12625992121,0cyclictest0-21swapper/112:25:131
12625992121,0cyclictest0-21swapper/108:15:141
12621992121,0cyclictest0-21swapper/010:20:150
12621992120,1cyclictest2429-21cron09:05:000
12630992020,0cyclictest0-21swapper/211:45:142
12625992020,0cyclictest0-21swapper/112:05:131
12621992020,0cyclictest21725-21apt-get09:45:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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