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2026-04-21 - 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 Tue Apr 21, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
623993327,5cyclictest12775-21apt-get23:00:120
65199310,2cyclictest307-21systemd-journal00:35:012
623993125,5cyclictest0-21swapper/022:45:000
641993028,1cyclictest0-21swapper/120:55:011
65299290,28cyclictest7280-21apt-get21:40:133
65299290,28cyclictest23034-21apt-get00:30:123
65299290,28cyclictest11344-21apt-get20:40:113
65299290,28cyclictest0-21swapper/323:05:123
65199290,28cyclictest22823-21munin-run21:05:002
65199290,1cyclictest8201-21latency_hist00:00:002
62399290,1cyclictest5259-21idleruntime-cro19:20:010
652992828,0cyclictest25364-21apt-get00:35:133
652992828,0cyclictest0-21swapper/322:40:133
652992827,0cyclictest0-21swapper/319:40:143
65299280,27cyclictest15986-21apt-get20:50:103
65299280,0cyclictest0-21swapper/323:20:113
651992827,1cyclictest8473-21apt-get19:25:132
651992826,1cyclictest9338-21perf21:45:012
65199280,0cyclictest0-21swapper/222:30:122
65199280,0cyclictest0-21swapper/220:05:132
64199280,0cyclictest0-21swapper/119:25:131
62399280,0cyclictest8109-21apt-get22:50:120
62399280,0cyclictest0-21swapper/000:30:120
652992727,0cyclictest27451-21apt-get20:05:143
652992727,0cyclictest1365-21apt-get23:45:113
652992727,0cyclictest0-21swapper/321:45:123
652992727,0cyclictest0-21swapper/321:35:023
652992727,0cyclictest0-21swapper/319:50:143
652992726,1cyclictest10795-21apt-get19:30:123
65299270,27cyclictest0-21swapper/319:10:133
651992727,0cyclictest0-21swapper/223:45:112
651992727,0cyclictest0-21swapper/200:10:132
651992726,0cyclictest0-21swapper/220:00:132
65199270,0cyclictest18085-21apt-get19:45:112
65199270,0cyclictest0-21swapper/220:25:112
641992727,0cyclictest0-21swapper/123:55:111
641992727,0cyclictest0-21swapper/122:15:111
641992727,0cyclictest0-21swapper/120:35:121
641992727,0cyclictest0-21swapper/120:15:131
64199270,0cyclictest0-21swapper/120:45:111
64199270,0cyclictest0-21swapper/120:20:131
623992727,0cyclictest0-21swapper/023:40:130
623992727,0cyclictest0-21swapper/021:30:120
623992727,0cyclictest0-21swapper/019:45:110
623992725,1cyclictest5762-21munin-run23:55:010
62399270,0cyclictest0-21swapper/023:10:120
62399270,0cyclictest0-21swapper/020:00:120
652992626,0cyclictest0-21swapper/300:25:133
651992626,0cyclictest0-21swapper/223:05:112
651992626,0cyclictest0-21swapper/219:40:142
651992625,1cyclictest6681-21apt-get20:30:142
65199261,25cyclictest0-21swapper/219:57:392
641992626,0cyclictest0-21swapper/121:35:101
641992626,0cyclictest0-21swapper/120:55:111
641992624,1cyclictest18969-21cron22:05:001
623992626,0cyclictest26562-21apt-get22:20:130
623992626,0cyclictest15745-21apt-get00:15:110
623992626,0cyclictest13125-21apt-get00:10:130
623992626,0cyclictest0-21swapper/020:55:110
623992626,0cyclictest0-21swapper/019:10:130
652992525,0cyclictest12225-21apt-get21:50:123
652992525,0cyclictest0-21swapper/322:30:123
652992525,0cyclictest0-21swapper/321:05:123
652992525,0cyclictest0-21swapper/320:35:123
652992523,1cyclictest1758-21munin-run20:20:013
651992525,0cyclictest875-21apt-get19:10:112
651992525,0cyclictest0-21swapper/223:30:132
651992525,0cyclictest0-21swapper/219:30:122
641992525,0cyclictest0-21swapper/120:25:111
641992525,0cyclictest0-21swapper/100:30:121
623992525,0cyclictest0-21swapper/022:30:120
623992525,0cyclictest0-21swapper/020:45:110
623992525,0cyclictest0-21swapper/020:05:130
623992524,1cyclictest10536-21munin-run19:30:000
651992423,1cyclictest26562-21apt-get22:20:142
641992424,0cyclictest0-21swapper/121:10:111
641992424,0cyclictest0-21swapper/120:10:131
623992424,0cyclictest24868-21perf20:00:010
623992424,0cyclictest2037-21apt-get20:20:130
623992423,1cyclictest19009-21munin-run22:05:000
652992323,0cyclictest0-21swapper/323:25:133
652992323,0cyclictest0-21swapper/319:35:123
651992323,0cyclictest0-21swapper/223:00:122
651992323,0cyclictest0-21swapper/222:05:122
651992323,0cyclictest0-21swapper/200:15:112
641992323,0cyclictest0-21swapper/123:40:131
641992323,0cyclictest0-21swapper/121:20:121
641992323,0cyclictest0-21swapper/121:00:111
623992323,0cyclictest20756-21apt-get21:00:110
652992222,0cyclictest0-21swapper/323:35:113
652992222,0cyclictest0-21swapper/322:45:093
651992222,0cyclictest0-21swapper/222:15:022
651992222,0cyclictest0-21swapper/219:35:122
651992222,0cyclictest0-21swapper/200:25:122
641992222,0cyclictest0-21swapper/121:55:121
652992120,0cyclictest0-21swapper/322:15:023
651992121,0cyclictest0-21swapper/219:50:142
641992121,0cyclictest0-21swapper/100:05:121
641992120,1cyclictest211rcuc/122:50:001
623992121,0cyclictest8999-21apt-get20:35:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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