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2026-05-28 - 12:18
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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 May 28, 2026 00:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
235499333,29cyclictest6769-21awk23:55:012
235999320,31cyclictest29263-21apt-get22:25:113
235999320,0cyclictest0-21swapper/322:05:123
234699310,30cyclictest11846-21sh20:40:010
2359993027,3cyclictest21753-21apt-get00:25:123
235999300,29cyclictest621-21dbus-daemon20:05:013
235099300,29cyclictest307-21systemd-journal22:20:001
235099300,1cyclictest12901-21cron23:00:001
2359992928,1cyclictest17852-21apt-get23:10:113
2359992927,1cyclictest12673-21cron21:50:003
2354992928,0cyclictest0-21swapper/220:20:122
2354992927,1cyclictest19115-21cron00:20:012
2354992927,1cyclictest1-21systemd00:00:012
235499290,28cyclictest0-21swapper/219:50:112
235499290,1cyclictest17374-21munin-run22:00:012
235099290,28cyclictest0-21swapper/100:15:131
235099290,1cyclictest19102-21apt-get20:55:111
234699290,28cyclictest19951-21apt-get22:05:120
234699290,28cyclictest0-21swapper/021:40:000
234699290,28cyclictest0-21swapper/019:30:130
2359992828,0cyclictest0-21swapper/323:35:123
2359992828,0cyclictest0-21swapper/323:00:113
235999280,28cyclictest0-21swapper/300:10:023
235999280,27cyclictest0-21swapper/323:20:103
235999280,0cyclictest0-21swapper/321:05:113
235999280,0cyclictest0-21swapper/320:10:123
235999280,0cyclictest0-21swapper/300:00:133
2354992828,0cyclictest19432-21apt-get00:20:122
2354992828,0cyclictest0-21swapper/219:55:112
235499280,27cyclictest0-21swapper/221:45:112
235499280,0cyclictest0-21swapper/223:20:102
2350992828,0cyclictest0-21swapper/121:35:121
2350992827,1cyclictest28188-21apt-get20:05:121
2350992827,1cyclictest0-21swapper/122:50:111
235099280,28cyclictest0-21swapper/121:55:111
235099280,27cyclictest0-21swapper/123:10:111
235099280,27cyclictest0-21swapper/119:55:111
2346992828,0cyclictest0-21swapper/023:25:110
234699280,28cyclictest21450-21apt-get21:00:120
234699280,27cyclictest30510-21apt-get20:10:130
234699280,27cyclictest15531-21apt-get23:05:110
2359992727,0cyclictest0-21swapper/321:25:103
2359992727,0cyclictest0-21swapper/320:50:123
2359992726,1cyclictest0-21swapper/320:50:003
235999270,0cyclictest4729-21apt-get23:50:113
2354992727,0cyclictest0-21swapper/222:35:112
2354992727,0cyclictest0-21swapper/221:05:112
2354992725,1cyclictest621-21dbus-daemon23:05:002
235499270,0cyclictest271rcuc/220:10:132
2350992727,0cyclictest6988-21perf19:20:011
2350992727,0cyclictest0-21swapper/122:10:111
2350992726,1cyclictest1489-21apt-get22:35:111
2346992727,0cyclictest9489-21apt-get00:00:120
2359992626,0cyclictest2827-21apt-get20:20:123
2359992626,0cyclictest26122-21apt-get21:10:013
2359992626,0cyclictest0-21swapper/300:20:123
2359992625,0cyclictest22271-21apt-get22:10:113
2354992626,0cyclictest0-21swapper/221:00:122
2354992626,0cyclictest0-21swapper/219:10:122
2354992624,1cyclictest621-21dbus-daemon00:30:002
2350992626,0cyclictest0-21swapper/123:25:111
2350992624,1cyclictest18850-21munin-run20:55:001
2346992626,0cyclictest23521-21apt-get19:55:110
2346992626,0cyclictest0-21swapper/000:25:120
2346992626,0cyclictest0-21swapper/000:05:130
2346992625,1cyclictest633-21in:imuxsock21:20:010
2359992525,0cyclictest25141-21apt-get23:25:113
2359992525,0cyclictest0-21swapper/323:15:123
2359992525,0cyclictest0-21swapper/319:55:113
2359992523,1cyclictest23515-21munin-run21:05:003
2359992523,1cyclictest0-21swapper/321:45:003
2354992524,1cyclictest0-21swapper/219:30:142
2350992525,0cyclictest26406-21apt-get00:35:131
2350992525,0cyclictest0-21swapper/119:50:111
2350992523,1cyclictest16511-21sh00:15:011
2346992525,0cyclictest0-21swapper/023:35:120
2346992524,1cyclictest621-21dbus-daemon19:15:000
2346992524,1cyclictest10598-21perf22:55:010
2359992424,0cyclictest19102-21apt-get20:55:113
2359992424,0cyclictest0-21swapper/319:10:113
2359992422,2cyclictest0-21swapper/319:15:123
2354992424,0cyclictest0-21swapper/200:05:122
2354992423,1cyclictest14216-21apt-get19:35:132
2354992417,7cyclictest0-21swapper/220:30:162
2350992424,0cyclictest0-21swapper/119:45:111
2346992423,1cyclictest10642-21apt-get21:45:110
2346992422,1cyclictest4140-21cron23:50:000
2359992323,0cyclictest0-21swapper/319:50:113
2354992323,0cyclictest4904-21apt-get19:15:132
2354992323,0cyclictest1261-21apt-get21:25:102
2354992323,0cyclictest0-21swapper/221:45:002
2354992323,0cyclictest0-21swapper/200:00:132
2354992322,1cyclictest4157-21perf23:50:002
2354992322,1cyclictest0-21swapper/222:55:122
2354992321,1cyclictest16527-21munin-run20:50:002
2350992323,0cyclictest0-21swapper/123:45:121
2346992323,0cyclictest19432-21apt-get00:20:120
2346992323,0cyclictest0-21swapper/022:55:120
2346992323,0cyclictest0-21swapper/021:50:100
2346992323,0cyclictest0-21swapper/021:20:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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