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2025-08-27 - 14:37
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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 Aug 27, 2025 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
60699300,29cyclictest24502-21cron21:10:012
60699300,29cyclictest12887-21apt-get00:10:132
61999290,1cyclictest29169-21sendmail-msp21:20:013
606992927,1cyclictest12234-21awk19:35:012
60699290,28cyclictest28247-21apt-get23:35:142
60699290,28cyclictest15209-21apt-get00:15:132
60699290,28cyclictest0-21swapper/222:30:162
60699290,28cyclictest0-21swapper/220:15:012
603992927,1cyclictest17462-21basename20:55:001
60399290,28cyclictest8981-21perf22:55:011
60399290,28cyclictest25371-21apt-get22:20:161
59799290,28cyclictest0-21swapper/019:25:130
61999280,28cyclictest26560-21apt-get20:05:153
61999280,28cyclictest0-21swapper/322:50:133
61999280,27cyclictest12522-21apt-get19:35:153
61999280,27cyclictest0-21swapper/323:30:133
61999280,0cyclictest0-21swapper/323:35:143
61999280,0cyclictest0-21swapper/322:40:193
61999280,0cyclictest0-21swapper/321:20:133
61999280,0cyclictest0-21swapper/320:30:123
606992828,0cyclictest0-21swapper/223:25:172
606992827,1cyclictest31787-21apt-get21:25:132
606992827,1cyclictest27221-21munin-run00:40:012
606992827,1cyclictest0-21swapper/220:55:122
606992826,1cyclictest13356-21cron21:55:012
60699280,28cyclictest0-21swapper/221:30:112
60699280,0cyclictest20643-21apt-get22:10:112
603992828,0cyclictest0-21swapper/120:00:141
603992828,0cyclictest0-21swapper/100:10:131
603992827,1cyclictest17559-21apt-get00:20:131
60399280,28cyclictest0-21swapper/120:35:181
597992828,0cyclictest0-21swapper/021:25:140
597992827,1cyclictest28593-21awk20:10:000
597992826,1cyclictest26857-21munin-run21:15:010
619992727,0cyclictest0-21swapper/323:20:183
61999270,0cyclictest0-21swapper/300:30:153
606992727,0cyclictest0-21swapper/221:20:122
606992727,0cyclictest0-21swapper/221:15:142
606992727,0cyclictest0-21swapper/219:50:142
60699270,27cyclictest0-21swapper/222:20:152
60699270,0cyclictest0-21swapper/221:55:142
603992727,0cyclictest0-21swapper/123:20:181
603992727,0cyclictest0-21swapper/122:30:161
603992727,0cyclictest0-21swapper/121:15:151
603992726,0cyclictest0-21swapper/120:40:121
603992725,1cyclictest1438-21basename21:30:001
60399270,0cyclictest0-21swapper/123:30:131
60399270,0cyclictest0-21swapper/123:15:161
60399270,0cyclictest0-21swapper/122:05:131
597992727,0cyclictest10182-21apt-get20:40:010
597992727,0cyclictest0-21swapper/022:20:160
597992725,1cyclictest5509-21cron20:30:010
59799270,0cyclictest0-21swapper/022:35:130
59799270,0cyclictest0-21swapper/000:05:140
619992626,0cyclictest4602-21apt-get22:45:133
619992626,0cyclictest18321-21apt-get22:05:143
619992626,0cyclictest0-21swapper/300:05:143
606992626,0cyclictest0-21swapper/223:15:152
606992626,0cyclictest0-21swapper/222:55:032
603992626,0cyclictest0-21swapper/123:05:141
603992626,0cyclictest0-21swapper/122:40:191
603992626,0cyclictest0-21swapper/122:35:141
597992626,0cyclictest0-21swapper/023:25:170
597992626,0cyclictest0-21swapper/022:45:120
597992626,0cyclictest0-21swapper/019:45:150
597992625,1cyclictest0-21swapper/020:25:010
619992525,0cyclictest21894-21apt-get19:55:143
619992525,0cyclictest0-21swapper/300:20:123
606992525,0cyclictest0-21swapper/223:00:132
603992525,0cyclictest0-21swapper/122:45:131
603992525,0cyclictest0-21swapper/120:05:161
597992525,0cyclictest0-21swapper/023:00:140
597992525,0cyclictest0-21swapper/021:15:150
597992525,0cyclictest0-21swapper/020:30:120
597992525,0cyclictest0-21swapper/000:00:140
619992424,0cyclictest24236-21apt-get20:00:143
606992424,0cyclictest0-21swapper/220:20:142
606992424,0cyclictest0-21swapper/200:05:132
603992424,0cyclictest0-21swapper/122:55:121
603992424,0cyclictest0-21swapper/100:05:131
603992422,1cyclictest818-21cron20:20:011
597992424,0cyclictest5465-21apt-get23:55:140
597992424,0cyclictest2835-21apt-get23:50:130
597992424,0cyclictest0-21swapper/022:40:180
597992424,0cyclictest0-21swapper/021:55:130
597992424,0cyclictest0-21swapper/019:20:130
597992424,0cyclictest0-21swapper/000:20:130
619992323,0cyclictest18875-21apt-get23:15:153
619992323,0cyclictest0-21swapper/320:40:013
603992323,0cyclictest0-21swapper/123:45:191
603992323,0cyclictest0-21swapper/119:50:141
597992323,0cyclictest0-21swapper/019:15:130
619992222,0cyclictest0-21swapper/322:20:153
619992220,1cyclictest303-21systemd-journal20:54:593
606992222,0cyclictest17487-21perf20:55:002
606992222,0cyclictest0-21swapper/222:50:132
603992222,0cyclictest22466-21apt-get21:05:131
603992220,1cyclictest6363-21cron21:40:011
597992222,0cyclictest0-21swapper/022:30:160
619992121,0cyclictest0-21swapper/300:10:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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