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2025-02-15 - 12:04
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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 Feb 15, 2025 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28916993232,0cyclictest0-21swapper/220:35:132
2892299300,29cyclictest17578-21perf21:10:003
2891699300,29cyclictest626-21gdbus19:45:012
28912993028,1cyclictest12318-21cron22:50:011
28911993028,1cyclictest615-21rs:main0
2891199300,1cyclictest303-21systemd-journal22:35:000
2892299290,28cyclictest1179-21apt-get20:35:133
28916992928,1cyclictest29226-21awk21:45:002
28912992927,1cyclictest12996-21perf22:55:011
2891299290,28cyclictest3907-21munin-run00:15:011
2891299290,28cyclictest0-21swapper/120:10:001
2891299290,1cyclictest0-21swapper/100:30:081
2891199290,28cyclictest0-21swapper/000:35:110
28922992826,1cyclictest6244-21munin-run00:20:013
28922992826,1cyclictest25591-21munin-run23:45:013
2892299280,0cyclictest6155-21apt-get20:45:123
2892299280,0cyclictest20711-21apt-get20:05:143
2891699280,1cyclictest6507-21apt-get00:20:132
28912992827,1cyclictest6037-21apt-get19:30:161
2891299280,0cyclictest0-21swapper/100:15:131
2891199282,25cyclictest0-21swapper/020:00:240
2891199280,27cyclictest0-21swapper/019:50:080
2891199280,24cyclictest2414-21kworker/0:019:50:010
28922992727,0cyclictest0-21swapper/321:45:103
28922992725,1cyclictest25511-21munin-run21:30:013
2892299270,0cyclictest31461-21apt-get19:15:153
2892299270,0cyclictest0-21swapper/319:55:183
28912992727,0cyclictest0-21swapper/120:55:121
28912992727,0cyclictest0-21swapper/120:45:121
28912992727,0cyclictest0-21swapper/120:15:131
2891299270,0cyclictest0-21swapper/100:40:011
28911992727,0cyclictest0-21swapper/023:55:140
28911992727,0cyclictest0-21swapper/021:30:180
28911992727,0cyclictest0-21swapper/019:40:140
28911992725,1cyclictest0-21swapper/022:40:010
28922992626,0cyclictest0-21swapper/320:50:143
28922992626,0cyclictest0-21swapper/320:15:133
28916992626,0cyclictest0-21swapper/223:15:202
28916992626,0cyclictest0-21swapper/219:50:092
28912992626,0cyclictest0-21swapper/121:50:071
28912992626,0cyclictest0-21swapper/121:30:181
28911992626,0cyclictest0-21swapper/021:50:080
28911992626,0cyclictest0-21swapper/020:55:130
28911992623,2cyclictest4322-21cron22:10:000
28922992525,0cyclictest0-21swapper/320:10:023
28922992525,0cyclictest0-21swapper/300:10:083
28916992525,0cyclictest9486-21apt-get22:35:102
28916992525,0cyclictest26495-21apt-get23:50:122
28916992524,1cyclictest20471-21apt-get21:15:132
28916992524,1cyclictest14939-21awk23:10:012
28912992525,0cyclictest0-21swapper/120:20:171
28912992523,1cyclictest7261-21cron22:20:011
28911992523,1cyclictest10439-21munin-run19:40:010
28922992424,0cyclictest0-21swapper/323:15:203
28922992424,0cyclictest0-21swapper/322:15:203
28922992424,0cyclictest0-21swapper/320:40:133
28922992424,0cyclictest0-21swapper/319:30:163
28916992424,0cyclictest8477-21apt-get20:50:142
28916992424,0cyclictest3833-21apt-get20:40:122
28912992424,0cyclictest0-21swapper/119:20:141
28912992423,1cyclictest28744-21apt-get21:40:111
28922992322,0cyclictest0-21swapper/323:20:083
28922992321,1cyclictest1538-21cron00:10:003
28916992321,1cyclictest30965-21kworker/2:200:40:012
28916992321,1cyclictest0-21swapper/220:30:012
28912992323,0cyclictest0-21swapper/121:45:101
28912992323,0cyclictest0-21swapper/119:50:081
28911992322,1cyclictest18095-21sh20:00:010
28922992222,0cyclictest0-21swapper/321:15:123
28922992222,0cyclictest0-21swapper/320:00:163
28922992220,1cyclictest609-21dbus-daemon22:15:003
28916992222,0cyclictest0-21swapper/221:20:122
28916992222,0cyclictest0-21swapper/221:00:112
28916992222,0cyclictest0-21swapper/219:25:132
28912992222,0cyclictest16048-21apt-get19:55:171
28912992222,0cyclictest0-21swapper/119:10:121
2892299217,10cyclictest607-21irqbalance21:53:343
28922992119,1cyclictest13408-21munin-run19:50:013
28916992121,0cyclictest0-21swapper/220:20:152
28916992121,0cyclictest0-21swapper/219:15:142
28916992119,1cyclictest20252-21cron23:25:002
28912992120,1cyclictest3213-21cron20:40:001
28911992120,1cyclictest28459-21perf21:40:000
28922992020,0cyclictest0-21swapper/323:50:133
28922992018,1cyclictest623-21polkitd22:00:003
28916992020,0cyclictest25782-21apt-get21:30:182
28912992020,0cyclictest14952-21apt-get23:10:361
28912992020,0cyclictest0-21swapper/120:40:121
28922991919,0cyclictest0-21swapper/319:35:153
28922991919,0cyclictest0-21swapper/300:35:133
28916991919,0cyclictest8219-21perf20:50:002
28912991919,0cyclictest11717-21perf22:45:011
28912991919,0cyclictest0-21swapper/121:10:161
28911991917,1cyclictest0-21swapper/022:50:000
28922991818,0cyclictest0-21swapper/319:20:153
28916991818,0cyclictest0-21swapper/223:55:142
28916991818,0cyclictest0-21swapper/222:30:002
28916991818,0cyclictest0-21swapper/221:10:012
28912991818,0cyclictest0-21swapper/123:55:141
28911991818,0cyclictest3712-21apt-get19:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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