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2026-08-22 - 17:11
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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 Aug 22, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2220993332,1cyclictest19736-21/usr/sbin/munin08:55:140
222199300,1cyclictest28792-21cron09:15:001
2223992928,0cyclictest8332-21apt-get09:40:133
2223992927,1cyclictest15348-21apt-get09:55:133
222399290,28cyclictest1073-21apt-get08:15:113
222399290,1cyclictest26494-21munin-run09:09:593
2222992927,2cyclictest0-21swapper/208:15:122
222299290,28cyclictest0-21swapper/211:35:132
222299290,28cyclictest0-21swapper/209:40:002
222299290,28cyclictest0-21swapper/208:55:132
222299290,1cyclictest18946-21cron07:45:012
2221992928,0cyclictest13024-21apt-get09:50:111
2221992927,1cyclictest0-21swapper/111:00:011
222199290,28cyclictest21442-21apt-get12:25:141
222199290,1cyclictest0-21swapper/112:00:001
2220992928,1cyclictest17694-21apt-get10:00:120
222099290,28cyclictest27614-21munin-run11:30:010
222099290,28cyclictest0-21swapper/007:15:130
2223992828,0cyclictest0-21swapper/309:00:103
2223992827,1cyclictest4209-21apt-get10:40:123
2223992827,1cyclictest25557-21apt-get11:25:133
2223992827,1cyclictest19769-21apt-get08:55:123
2223992827,1cyclictest0-21swapper/309:10:123
222399280,0cyclictest0-21swapper/312:30:123
222299283,5cyclictest0-21swapper/208:40:142
2222992828,0cyclictest0-21swapper/208:00:122
2222992825,2cyclictest307-21systemd-journal10:50:012
222299280,28cyclictest0-21swapper/212:20:012
222299280,27cyclictest0-21swapper/211:25:142
222299280,27cyclictest0-21swapper/210:30:132
2221992828,0cyclictest0-21swapper/112:10:131
2221992828,0cyclictest0-21swapper/110:35:131
2221992828,0cyclictest0-21swapper/110:00:131
2221992827,0cyclictest28858-21apt-get08:05:151
222199280,27cyclictest10405-21apt-get08:35:131
222199280,0cyclictest0-21swapper/108:50:121
222199280,0cyclictest0-21swapper/108:00:131
222099280,27cyclictest26389-21apt-get12:35:130
222099280,27cyclictest0-21swapper/010:40:130
222099280,0cyclictest0-21swapper/008:50:120
2223992727,0cyclictest16466-21apt-get12:15:133
2223992726,1cyclictest13024-21apt-get09:50:103
2223992725,1cyclictest0-21swapper/311:45:133
2222992727,0cyclictest0-21swapper/211:05:132
2222992727,0cyclictest0-21swapper/208:50:112
2222992727,0cyclictest0-21swapper/207:15:122
222299270,0cyclictest18265-21apt-get11:10:102
2221992727,0cyclictest5981-21apt-get09:35:111
2221992727,0cyclictest0-21swapper/111:10:101
2221992727,0cyclictest0-21swapper/107:45:111
222199270,27cyclictest0-21swapper/107:15:001
222199270,0cyclictest10387-21perf09:45:001
2220992727,0cyclictest0-21swapper/008:20:130
2220992727,0cyclictest0-21swapper/007:55:130
2220992724,2cyclictest17377-21cron09:59:590
222099270,0cyclictest0-21swapper/012:30:130
222099270,0cyclictest0-21swapper/011:40:110
2223992626,0cyclictest0-21swapper/312:20:133
2223992626,0cyclictest0-21swapper/310:55:133
2222992624,1cyclictest0-21swapper/207:10:112
2220992626,0cyclictest0-21swapper/010:30:130
2220992626,0cyclictest0-21swapper/009:40:140
2220992626,0cyclictest0-21swapper/009:10:000
2223992525,0cyclictest7145-21apt-get07:20:143
2223992525,0cyclictest0-21swapper/311:40:123
2223992523,1cyclictest810-21perf08:15:003
2222992525,0cyclictest0-21swapper/210:40:132
2222992525,0cyclictest0-21swapper/207:35:142
2221992525,0cyclictest0-21swapper/111:25:141
2221992523,1cyclictest3400-21munin-run09:30:001
2220992524,1cyclictest22109-21apt-get09:00:110
2223992424,0cyclictest31952-21apt-get10:30:123
2223992424,0cyclictest0-21swapper/311:10:113
2222992424,0cyclictest0-21swapper/210:15:122
2222992424,0cyclictest0-21swapper/208:35:132
2221992424,0cyclictest0-21swapper/111:20:131
2221992424,0cyclictest0-21swapper/110:15:121
2221992423,1cyclictest17616-21apt-get11:05:571
2221992423,1cyclictest11521-21perf07:30:011
2220992424,0cyclictest0-21swapper/008:15:120
2221992323,0cyclictest0-21swapper/110:05:121
2221992322,1cyclictest29628-21apt-get10:25:131
2220992323,0cyclictest0-21swapper/010:45:130
2220992323,0cyclictest0-21swapper/009:10:120
2220992323,0cyclictest0-21swapper/008:35:130
2223992222,0cyclictest4796-21apt-get07:15:133
2222992220,2cyclictest24065-21apt-get12:30:132
2222992220,1cyclictest307-21systemd-journal11:25:002
2221992222,0cyclictest19769-21apt-get08:55:131
2221992220,1cyclictest24704-21munin-run10:15:001
2220992222,0cyclictest0-21swapper/012:20:130
2220992222,0cyclictest0-21swapper/012:15:130
2220992222,0cyclictest0-21swapper/010:55:120
222299214,4cyclictest0-21swapper/209:20:152
2222992121,0cyclictest0-21swapper/212:10:122
2221992121,0cyclictest0-21swapper/111:35:131
2220992121,0cyclictest0-21swapper/011:45:120
2220992121,0cyclictest0-21swapper/009:50:110
2220992121,0cyclictest0-21swapper/007:20:140
2223992020,0cyclictest0-21swapper/307:40:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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