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2025-12-03 - 07:56
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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 Wed Dec 03, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2680599376,17cyclictest151rcu_preempt20:07:003
2680499310,2cyclictest303-21systemd-journal00:10:012
2680599301,1cyclictest9741-21basename23:10:003
2680599300,29cyclictest31439-21sendmail-msp19:20:013
26802993028,1cyclictest14758-21cron23:20:010
2680299300,29cyclictest5378-21apt-get23:00:140
2680299300,29cyclictest18010-21chrt20:00:130
2680599290,28cyclictest22979-21munin-run21:20:003
2680499290,28cyclictest6306-21munin-run20:45:002
2680499290,28cyclictest2734-21cron22:55:002
2680399290,28cyclictest609-21dbus-daemon20:30:011
2680399290,1cyclictest9768-21munin-run23:10:011
26802992928,0cyclictest4239-21apt-get20:40:120
26802992927,1cyclictest11895-21munin-run22:05:010
2680299290,28cyclictest24370-21apt-get23:40:130
26805992826,1cyclictest29098-21cron19:15:013
2680599280,28cyclictest0-21swapper/323:15:013
2680599280,28cyclictest0-21swapper/323:00:143
2680599280,27cyclictest0-21swapper/322:05:103
2680599280,27cyclictest0-21swapper/321:05:133
2680599280,0cyclictest31354-21apt-get23:55:133
2680599280,0cyclictest0-21swapper/323:25:113
2680599280,0cyclictest0-21swapper/323:15:123
2680599280,0cyclictest0-21swapper/322:55:133
26804992828,0cyclictest30796-21apt-get22:45:122
26803992826,1cyclictest0-21swapper/119:50:011
2680399280,27cyclictest0-21swapper/121:10:131
2680399280,0cyclictest0-21swapper/123:25:121
2680399280,0cyclictest0-21swapper/100:15:131
26802992827,0cyclictest0-21swapper/023:45:130
2680299280,28cyclictest0-21swapper/020:45:140
26805992727,0cyclictest0-21swapper/320:00:143
26805992725,1cyclictest3708-21munin-run19:30:013
2680599270,0cyclictest0-21swapper/322:20:003
26804992727,0cyclictest0-21swapper/222:40:132
26804992727,0cyclictest0-21swapper/222:40:132
26804992727,0cyclictest0-21swapper/220:35:142
26804992726,1cyclictest9192-21apt-get22:00:022
26804992726,1cyclictest26695-21apt-get23:45:122
26804992726,1cyclictest18565-21apt-get21:10:112
26804992724,2cyclictest18853-21cron22:20:002
26804992724,2cyclictest10412-21cron00:20:012
2680499270,27cyclictest0-21swapper/220:25:122
2680499270,0cyclictest14472-21apt-get22:10:122
26803992727,0cyclictest0-21swapper/123:40:131
2680399270,27cyclictest0-21swapper/123:30:141
2680399270,0cyclictest0-21swapper/121:50:141
26802992727,0cyclictest0-21swapper/022:55:130
26802992727,0cyclictest0-21swapper/022:05:110
26802992727,0cyclictest0-21swapper/020:30:120
26802992727,0cyclictest0-21swapper/000:35:020
26802992726,1cyclictest20330-21apt-get20:05:130
26802992726,0cyclictest0-21swapper/000:00:130
26805992626,0cyclictest0-21swapper/323:40:133
26805992626,0cyclictest0-21swapper/320:45:143
26804992626,0cyclictest0-21swapper/200:30:132
26803992626,0cyclictest0-21swapper/122:05:111
26803992625,0cyclictest16797-21apt-get22:15:141
26802992626,0cyclictest0-21swapper/021:45:120
26802992626,0cyclictest0-21swapper/021:40:140
26802992625,1cyclictest15659-21apt-get19:55:130
26805992525,0cyclictest0-21swapper/322:45:123
26805992525,0cyclictest0-21swapper/320:40:113
26805992525,0cyclictest0-21swapper/320:20:143
26804992525,0cyclictest17373-21apt-get23:25:112
26804992523,1cyclictest0-21swapper/223:55:122
26803992525,0cyclictest27337-21apt-get20:20:141
26803992525,0cyclictest0-21swapper/122:10:121
26803992525,0cyclictest0-21swapper/120:40:121
26803992525,0cyclictest0-21swapper/119:25:121
26803992525,0cyclictest0-21swapper/100:00:131
26803992523,1cyclictest0-21swapper/122:50:201
26802992525,0cyclictest24979-21apt-get20:15:140
26802992525,0cyclictest0-21swapper/023:30:000
26802992525,0cyclictest0-21swapper/022:10:120
26802992525,0cyclictest0-21swapper/021:05:120
26802992524,1cyclictest13624-21sendmail-msp21:00:000
26802992523,1cyclictest29403-21munin-run20:25:000
26805992424,0cyclictest31984-21apt-get20:30:123
26805992424,0cyclictest11887-21perf22:05:013
26805992424,0cyclictest0-21swapper/323:45:133
26804992424,0cyclictest0-21swapper/221:55:112
26804992424,0cyclictest0-21swapper/200:35:022
26803992424,0cyclictest0-21swapper/121:55:121
26802992424,0cyclictest0-21swapper/023:20:110
26802992423,0cyclictest0-21swapper/021:50:140
26802992422,1cyclictest0-21swapper/019:20:010
26805992323,0cyclictest0-21swapper/321:45:123
26805992323,0cyclictest0-21swapper/321:40:143
26805992323,0cyclictest0-21swapper/300:35:023
26805992323,0cyclictest0-21swapper/300:00:133
26805992321,1cyclictest13598-21cron21:00:003
26804992323,0cyclictest8637-21apt-get19:40:142
26804992323,0cyclictest12701-21apt-get23:15:112
26804992323,0cyclictest0-21swapper/223:05:142
26804992323,0cyclictest0-21swapper/222:25:122
26804992322,1cyclictest17092-21idleruntime-cro23:25:012
26803992323,0cyclictest0-21swapper/123:55:131
26803992323,0cyclictest0-21swapper/122:25:121
26803992323,0cyclictest0-21swapper/120:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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