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2025-12-04 - 09:42
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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 04, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
976199330,32cyclictest0-21swapper/021:55:110
976199312,28cyclictest25555-21awk23:10:010
976199310,30cyclictest303-21systemd-journal21:10:000
976299300,29cyclictest16848-21munin-run00:00:011
9761993028,1cyclictest3699-21idleruntime-cro21:15:010
9761993027,3cyclictest0-21swapper/020:05:140
9763992927,1cyclictest4276-21cron22:25:012
976399290,28cyclictest15340-21apt-get20:30:112
976399290,28cyclictest0-21swapper/223:20:132
976299290,28cyclictest0-21swapper/123:50:141
976299290,28cyclictest0-21swapper/123:05:131
976299290,28cyclictest0-21swapper/121:50:001
976299290,28cyclictest0-21swapper/119:40:121
976199290,1cyclictest16810-40mandb00:00:010
976499280,28cyclictest0-21swapper/323:20:143
976499280,27cyclictest0-21swapper/323:10:133
976499280,0cyclictest0-21swapper/320:40:133
9763992826,1cyclictest4866-21munin-run23:35:002
9763992825,2cyclictest20609-21cron23:00:012
976399280,28cyclictest0-21swapper/223:50:142
976399280,28cyclictest0-21swapper/222:05:152
976399280,28cyclictest0-21swapper/221:45:142
976399280,0cyclictest0-21swapper/219:40:122
976299280,28cyclictest0-21swapper/122:25:011
9761992827,1cyclictest16223-21apt-get22:50:120
9761992825,3cyclictest0-21swapper/020:40:130
976199280,27cyclictest0-21swapper/020:45:110
976199280,0cyclictest0-21swapper/022:05:150
9764992727,0cyclictest8664-21apt-get21:25:123
9764992727,0cyclictest10016-21apt-get19:10:123
9764992727,0cyclictest0-21swapper/322:35:123
9764992727,0cyclictest0-21swapper/300:00:153
9764992725,1cyclictest0-21swapper/322:55:003
9764992724,2cyclictest23796-21sendmail19:40:003
9763992727,0cyclictest13321-21apt-get21:35:122
9763992727,0cyclictest0-21swapper/221:30:122
9763992727,0cyclictest0-21swapper/220:10:122
9763992727,0cyclictest0-21swapper/220:05:022
9763992727,0cyclictest0-21swapper/219:20:022
9763992725,1cyclictest0-21swapper/219:35:002
9762992727,0cyclictest6896-21apt-get22:30:131
9762992727,0cyclictest0-21swapper/120:50:131
9762992725,1cyclictest29675-21munin-run22:10:001
976299270,0cyclictest17497-21apt-get00:00:131
9761992727,0cyclictest0-21swapper/023:45:110
9761992727,0cyclictest0-21swapper/022:40:110
9761992727,0cyclictest0-21swapper/019:45:130
976199270,27cyclictest0-21swapper/000:35:150
976199270,0cyclictest0-21swapper/000:25:030
9764992626,0cyclictest6011-21apt-get20:10:133
9764992626,0cyclictest1661-21apt-get21:10:123
9764992626,0cyclictest0-21swapper/322:20:123
9764992624,1cyclictest0-21swapper/300:30:013
9763992626,0cyclictest28862-21apt-get20:57:532
9763992626,0cyclictest0-21swapper/223:15:122
9763992626,0cyclictest0-21swapper/221:40:122
9763992626,0cyclictest0-21swapper/220:05:152
9763992624,1cyclictest31503-21cron00:30:012
9762992626,0cyclictest0-21swapper/123:40:161
9762992626,0cyclictest0-21swapper/121:50:131
9762992626,0cyclictest0-21swapper/119:20:131
9762992626,0cyclictest0-21swapper/100:35:161
9762992626,0cyclictest0-21swapper/100:10:151
9761992626,0cyclictest0-21swapper/022:10:140
9764992525,0cyclictest0-21swapper/323:30:113
9764992525,0cyclictest0-21swapper/321:45:133
9764992525,0cyclictest0-21swapper/321:15:133
9763992525,0cyclictest0-21swapper/222:30:122
9762992523,1cyclictest28496-21perf19:50:021
9761992525,0cyclictest0-21swapper/022:35:130
9761992525,0cyclictest0-21swapper/022:25:130
9761992523,2cyclictest0-21swapper/019:15:130
9764992424,0cyclictest0-21swapper/323:35:153
9764992424,0cyclictest0-21swapper/323:25:113
9764992424,0cyclictest0-21swapper/320:30:113
9764992422,1cyclictest31079-21apt-get19:55:133
9763992423,1cyclictest31702-21apt-get21:05:122
9763992422,1cyclictest1953-21sendmail-msp22:20:002
9762992424,0cyclictest13899-21apt-get22:45:111
9762992424,0cyclictest0-21swapper/123:25:111
9762992424,0cyclictest0-21swapper/122:35:131
9762992424,0cyclictest0-21swapper/119:10:121
9764992322,1cyclictest29381-21apt-get21:00:133
9762992323,0cyclictest0-21swapper/122:50:121
9761992323,0cyclictest0-21swapper/022:45:110
9761992323,0cyclictest0-21swapper/021:05:000
9761992323,0cyclictest0-21swapper/000:05:150
9764992222,0cyclictest29941-21apt-get22:10:153
9764992222,0cyclictest0-21swapper/322:30:013
9764992222,0cyclictest0-21swapper/320:00:133
9763992221,1cyclictest5129-21apt-get23:35:152
9762992222,0cyclictest0-21swapper/121:55:111
9762992222,0cyclictest0-21swapper/120:55:131
9762992222,0cyclictest0-21swapper/120:20:161
9762992222,0cyclictest0-21swapper/120:00:021
9762992222,0cyclictest0-21swapper/119:25:111
9761992222,0cyclictest32263-21apt-get22:15:150
9761992222,0cyclictest0-21swapper/022:20:130
9761992222,0cyclictest0-21swapper/019:35:000
9764992121,0cyclictest0-21swapper/323:15:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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