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2025-11-26 - 12:17
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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 Nov 26, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2941799310,2cyclictest303-21systemd-journal22:25:010
2942199300,29cyclictest28206-21munin-run23:40:012
2941899300,29cyclictest22-21ksoftirqd/123:10:121
2941799300,29cyclictest7845-21cron00:05:010
2941799300,29cyclictest626-21gdbus00:10:010
29425992927,1cyclictest0-21swapper/321:40:013
2942599290,28cyclictest2206-21apt-get19:20:123
2942599290,28cyclictest15369-21apt-get20:55:123
29421992927,1cyclictest19780-21munin-run21:05:002
2942199290,28cyclictest4217-21awk22:50:002
2942199290,28cyclictest26157-21apt-get20:10:162
29418992927,1cyclictest5409-21awk20:35:001
2941899290,28cyclictest0-21swapper/121:05:111
2941799290,28cyclictest8302-21cron21:50:000
2941799290,28cyclictest21846-21apt-get00:35:010
2941799290,28cyclictest0-21swapper/000:10:130
29425992825,2cyclictest3058-21cron23:55:013
29425992825,2cyclictest24471-21cron00:40:013
2942599280,0cyclictest3951-21apt-get21:40:123
2942599280,0cyclictest27040-21apt-get21:20:143
2942599280,0cyclictest17718-21apt-get21:00:133
2942599280,0cyclictest0-21swapper/320:40:123
29421992828,0cyclictest0-21swapper/220:25:122
29421992827,1cyclictest11855-21apt-get23:05:152
2942199280,28cyclictest0-21swapper/220:15:142
2942199280,28cyclictest0-21swapper/200:15:132
2942199280,0cyclictest0-21swapper/219:20:122
29418992827,1cyclictest22-21ksoftirqd/120:35:131
2941899280,28cyclictest0-21swapper/120:05:121
2941899280,1cyclictest22-21ksoftirqd/119:30:131
2941899280,0cyclictest0-21swapper/122:15:111
2941899280,0cyclictest0-21swapper/122:15:111
2941799280,0cyclictest0-21swapper/021:55:120
2941799280,0cyclictest0-21swapper/020:00:140
29425992727,0cyclictest0-21swapper/322:00:123
29425992726,1cyclictest29355-21perf22:35:013
2942599270,14cyclictest0-21swapper/323:21:083
29421992727,0cyclictest0-21swapper/221:35:152
29421992727,0cyclictest0-21swapper/221:05:112
29421992727,0cyclictest0-21swapper/220:05:112
29421992725,1cyclictest17688-21cron22:10:002
2942199270,0cyclictest0-21swapper/220:35:132
2942199270,0cyclictest0-21swapper/200:10:132
29418992727,0cyclictest21846-21apt-get00:35:021
2941899270,27cyclictest0-21swapper/123:20:141
2941899270,0cyclictest29922-21apt-get22:35:121
29417992727,0cyclictest31135-21apt-get20:20:120
29417992727,0cyclictest0-21swapper/020:50:120
29417992727,0cyclictest0-21swapper/019:55:120
29417992727,0cyclictest0-21swapper/019:50:130
2941799270,27cyclictest0-21swapper/022:15:120
2941799270,27cyclictest0-21swapper/022:15:120
2941799270,27cyclictest0-21swapper/019:20:120
2941799270,27cyclictest0-21swapper/019:15:110
29425992626,0cyclictest0-21swapper/323:45:023
29425992624,1cyclictest31437-21munin-run21:30:003
29425992624,1cyclictest0-21swapper/320:50:003
29421992626,0cyclictest0-21swapper/219:40:122
29421992626,0cyclictest0-21swapper/219:20:012
29418992626,0cyclictest0-21swapper/123:35:121
29418992626,0cyclictest0-21swapper/121:35:151
29418992626,0cyclictest0-21swapper/121:25:091
29418992626,0cyclictest0-21swapper/119:40:121
29417992626,0cyclictest0-21swapper/021:20:140
29417992626,0cyclictest0-21swapper/019:35:140
29425992525,0cyclictest0-21swapper/321:55:113
29425992524,1cyclictest5780-21apt-get00:00:143
29421992525,0cyclictest0-21swapper/222:35:132
29421992525,0cyclictest0-21swapper/221:15:122
29421992525,0cyclictest0-21swapper/219:45:132
29421992525,0cyclictest0-21swapper/219:35:142
29418992525,0cyclictest211rcuc/122:55:121
29418992525,0cyclictest0-21swapper/121:30:131
29418992525,0cyclictest0-21swapper/100:30:121
29418992523,1cyclictest2176-21apt-get22:45:111
29418992522,2cyclictest17714-21munin-run22:10:001
29417992525,0cyclictest23828-21apt-get20:05:110
29417992525,0cyclictest0-21swapper/022:30:120
29417992525,0cyclictest0-21swapper/019:30:130
29425992424,0cyclictest16803-21apt-get23:15:133
29425992424,0cyclictest0-21swapper/323:25:133
29425992424,0cyclictest0-21swapper/321:45:133
29421992424,0cyclictest0-21swapper/223:20:142
29421992424,0cyclictest0-21swapper/222:40:142
29421992422,1cyclictest6897-21perf19:30:002
29418992424,0cyclictest0-21swapper/120:50:131
29418992424,0cyclictest0-21swapper/119:35:141
29418992423,0cyclictest0-21swapper/100:00:011
29425992323,0cyclictest14510-21apt-get19:45:123
29418992323,0cyclictest28479-21apt-get20:15:141
29418992322,1cyclictest17456-21apt-get00:25:131
29418992317,4cyclictest26315-21wc22:25:191
29417992323,0cyclictest0-21swapper/022:35:120
29417992323,0cyclictest0-21swapper/021:00:130
29417992323,0cyclictest0-21swapper/020:25:120
29417992323,0cyclictest0-21swapper/019:40:120
29425992222,0cyclictest9174-21apt-get23:00:133
29425992222,0cyclictest32271-21apt-get19:15:103
29425992222,0cyclictest29952-21apt-get19:10:143
29425992222,0cyclictest22642-21apt-get22:20:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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