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2026-06-15 - 14:46
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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 Mon Jun 15, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
373999300,29cyclictest27900-21cron21:10:002
373999300,1cyclictest0-21swapper/200:00:012
374399290,28cyclictest0-21swapper/320:30:113
374399290,1cyclictest15901-21apt-get23:00:113
373999290,28cyclictest29932-21apt-get20:05:142
3734992927,1cyclictest307-21systemd-journal23:00:001
373499290,28cyclictest0-21swapper/123:35:111
3730992927,1cyclictest3331-21perf22:35:000
3730992927,1cyclictest3331-21perf22:35:000
3730992927,1cyclictest0-21swapper/021:40:000
373099290,28cyclictest0-21swapper/020:15:140
3743992828,0cyclictest0-21swapper/322:10:123
374399280,27cyclictest3890-21apt-get22:35:103
374399280,0cyclictest0-21swapper/321:45:133
374399280,0cyclictest0-21swapper/321:45:133
373999284,24cyclictest0-21swapper/219:22:392
3739992827,1cyclictest11886-21apt-get20:35:132
373999280,27cyclictest0-21swapper/221:10:112
373999280,0cyclictest0-21swapper/223:45:122
373999280,0cyclictest0-21swapper/221:55:122
3734992828,0cyclictest9141-21apt-get23:55:131
3734992828,0cyclictest0-21swapper/123:15:111
3734992827,1cyclictest18869-21apt-get20:50:111
3734992827,1cyclictest0-21swapper/122:00:001
373499280,27cyclictest0-21swapper/120:10:111
373099280,28cyclictest0-21swapper/023:50:120
3743992727,0cyclictest0-21swapper/322:30:013
3743992727,0cyclictest0-21swapper/322:30:013
3743992727,0cyclictest0-21swapper/320:50:123
3743992726,1cyclictest18607-21perf20:50:013
374399270,0cyclictest0-21swapper/323:55:123
3739992727,0cyclictest0-21swapper/222:35:032
3739992727,0cyclictest0-21swapper/219:55:122
373999270,27cyclictest0-21swapper/220:50:112
373999270,0cyclictest0-21swapper/222:00:112
373999270,0cyclictest0-21swapper/221:30:112
3734992727,0cyclictest4814-21apt-get20:20:131
3734992725,1cyclictest32538-21sh21:20:001
3730992727,0cyclictest0-21swapper/021:15:120
3730992727,0cyclictest0-21swapper/000:10:130
3743992626,0cyclictest8613-21apt-get22:45:123
3743992626,0cyclictest23864-21apt-get00:25:013
3743992626,0cyclictest0-21swapper/323:10:103
3743992626,0cyclictest0-21swapper/321:50:123
3743992626,0cyclictest0-21swapper/320:35:123
3743992626,0cyclictest0-21swapper/319:55:133
3743992626,0cyclictest0-21swapper/300:35:123
3739992626,0cyclictest29090-21apt-get00:35:122
3739992626,0cyclictest23492-21perf22:10:002
3739992626,0cyclictest0-21swapper/223:05:122
3739992626,0cyclictest0-21swapper/220:10:112
3739992626,0cyclictest0-21swapper/219:15:122
3734992626,0cyclictest0-21swapper/122:25:121
3730992626,0cyclictest11886-21apt-get20:35:120
3730992626,0cyclictest0-21swapper/021:20:090
3730992624,1cyclictest0-21swapper/022:05:010
3730992624,1cyclictest0-21swapper/000:20:010
3743992525,0cyclictest0-21swapper/321:35:133
3743992525,0cyclictest0-21swapper/320:55:123
3743992524,1cyclictest6588-21apt-get19:15:123
3739992525,0cyclictest0-21swapper/219:50:122
3739992525,0cyclictest0-21swapper/219:35:142
3739992524,1cyclictest1258-21apt-get22:30:142
3739992524,1cyclictest1258-21apt-get22:30:142
3734992525,0cyclictest25857-21apt-get21:05:131
3734992525,0cyclictest23761-21apt-get22:10:121
3734992525,0cyclictest21828-21apt-get00:20:131
3734992525,0cyclictest0-21swapper/123:05:141
3734992525,0cyclictest0-21swapper/122:50:111
3734992525,0cyclictest0-21swapper/100:00:011
3730992525,0cyclictest0-21swapper/023:45:130
3730992525,0cyclictest0-21swapper/019:35:130
3730992525,0cyclictest0-21swapper/000:30:000
3743992424,0cyclictest29854-21apt-get23:30:113
3743992424,0cyclictest0-21swapper/322:15:123
3739992424,0cyclictest0-21swapper/222:15:122
3739992424,0cyclictest0-21swapper/221:40:122
3734992422,1cyclictest25603-21munin-run21:05:001
3730992424,0cyclictest28182-21apt-get21:10:110
3730992424,0cyclictest0-21swapper/023:15:000
3730992424,0cyclictest0-21swapper/022:15:130
3730992424,0cyclictest0-21swapper/020:00:130
3730992424,0cyclictest0-21swapper/019:15:120
3739992323,0cyclictest0-21swapper/220:45:102
3734992323,0cyclictest0-21swapper/123:00:111
3734992323,0cyclictest0-21swapper/120:45:091
3734992323,0cyclictest0-21swapper/100:05:121
3734992321,1cyclictest23246-21turbostat.cron21:00:001
3734992321,1cyclictest1-21systemd21:55:011
3730992323,0cyclictest28732-21apt-get22:20:130
3730992323,0cyclictest0-21swapper/023:15:120
3730992323,0cyclictest0-21swapper/021:40:130
3739992222,0cyclictest0-21swapper/200:10:142
3739992221,1cyclictest28158-21apt-get22:20:012
3734992222,0cyclictest11613-21perf20:35:001
3734992222,0cyclictest0-21swapper/123:40:131
3734992222,0cyclictest0-21swapper/122:45:111
3734992222,0cyclictest0-21swapper/120:05:141
3734992222,0cyclictest0-21swapper/119:15:121
3734992222,0cyclictest0-21swapper/100:25:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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