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2025-12-04 - 21:58
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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 Thu Dec 04, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154199320,31cyclictest609-21dbus-daemon09:50:001
1541993028,1cyclictest609-21dbus-daemon08:55:011
154199300,29cyclictest609-21dbus-daemon07:50:001
154699290,28cyclictest0-21swapper/307:45:123
154599290,1cyclictest9716-21apt-get08:35:112
154599290,1cyclictest21414-21cron12:25:012
154199290,28cyclictest0-21swapper/111:35:011
153499290,28cyclictest141rcuc/010:50:000
1546992828,0cyclictest8486-21apt-get07:25:023
1546992826,1cyclictest609-21dbus-daemon10:15:013
1546992826,1cyclictest3560-21cron10:40:003
154699280,1cyclictest4809-21munin-run08:24:593
154699280,0cyclictest0-21swapper/310:50:133
154699280,0cyclictest0-21swapper/309:20:123
1545992828,0cyclictest6437-21apt-get07:20:142
1545992828,0cyclictest0-21swapper/211:05:122
154599280,28cyclictest0-21swapper/211:40:142
154599280,28cyclictest0-21swapper/207:55:112
154599280,1cyclictest0-21swapper/208:15:012
154599280,0cyclictest21710-21apt-get12:25:152
154199280,0cyclictest0-21swapper/111:10:131
154199280,0cyclictest0-21swapper/108:00:111
1534992828,0cyclictest0-21swapper/011:45:130
153499280,28cyclictest0-21swapper/011:50:120
153499280,28cyclictest0-21swapper/008:00:120
153499280,27cyclictest0-21swapper/011:25:120
153499280,0cyclictest3875-21apt-get10:40:110
153499280,0cyclictest0-21swapper/009:20:020
153499280,0cyclictest0-21swapper/007:15:150
1546992727,0cyclictest0-21swapper/311:55:133
1546992727,0cyclictest0-21swapper/311:40:143
1546992727,0cyclictest0-21swapper/307:20:143
1546992725,1cyclictest0-21swapper/307:20:023
154699270,0cyclictest1757-21apt-get07:10:123
154699270,0cyclictest0-21swapper/310:05:143
1545992727,0cyclictest0-21swapper/210:55:142
1545992727,0cyclictest0-21swapper/208:40:132
154599270,27cyclictest1251-21perf10:35:012
1541992727,0cyclictest0-21swapper/111:05:131
1541992727,0cyclictest0-21swapper/108:35:111
154199270,27cyclictest0-21swapper/112:05:131
154199270,0cyclictest0-21swapper/108:05:131
1534992727,0cyclictest15248-21apt-get09:55:120
1534992727,0cyclictest0-21swapper/012:15:120
1534992727,0cyclictest0-21swapper/011:15:160
1534992725,1cyclictest4787-21idleruntime-cro08:24:590
1546992626,0cyclictest13193-21apt-get11:00:143
1546992626,0cyclictest0-21swapper/312:20:013
1545992626,0cyclictest0-21swapper/211:35:022
1545992626,0cyclictest0-21swapper/210:15:002
1545992626,0cyclictest0-21swapper/210:00:112
1545992626,0cyclictest0-21swapper/208:20:142
1541992626,0cyclictest0-21swapper/111:15:161
1534992626,0cyclictest0-21swapper/010:15:130
1534992626,0cyclictest0-21swapper/009:25:140
1534992626,0cyclictest0-21swapper/008:05:140
1534992625,0cyclictest0-21swapper/012:05:140
1534992624,1cyclictest25541-21sendmail-msp08:00:010
1534992624,1cyclictest0-21swapper/012:30:000
1546992525,0cyclictest30480-21apt-get08:10:123
1546992525,0cyclictest15821-21apt-get11:05:123
1545992525,0cyclictest0-21swapper/212:35:022
1545992525,0cyclictest0-21swapper/212:10:132
1541992525,0cyclictest0-21swapper/109:20:111
1541992525,0cyclictest0-21swapper/108:55:151
1534992525,0cyclictest0-21swapper/012:30:140
1534992525,0cyclictest0-21swapper/010:00:100
1534992525,0cyclictest0-21swapper/009:15:120
1534992424,0cyclictest0-21swapper/011:35:130
1534992424,0cyclictest0-21swapper/008:55:140
1534992422,1cyclictest0-21swapper/009:04:590
1546992321,1cyclictest7695-21perf09:40:003
1545992323,0cyclictest0-21swapper/207:35:122
1541992323,0cyclictest16676-21apt-get12:15:131
1541992323,0cyclictest0-21swapper/108:15:141
1534992323,0cyclictest0-21swapper/010:25:140
1534992321,1cyclictest12348-21perf09:50:000
1546992222,0cyclictest0-21swapper/312:10:023
1546992222,0cyclictest0-21swapper/309:50:033
1545992222,0cyclictest0-21swapper/211:20:152
1545992222,0cyclictest0-21swapper/209:00:132
1541992222,0cyclictest0-21swapper/111:25:141
1541992222,0cyclictest0-21swapper/110:55:141
1534992222,0cyclictest31616-21apt-get10:30:130
154699218,0cyclictest0-21swapper/307:56:333
1546992121,0cyclictest0-21swapper/308:50:123
1545992121,0cyclictest31060-21apt-get09:20:112
1545992121,0cyclictest0-21swapper/211:15:142
1545992121,0cyclictest0-21swapper/211:10:122
1545992119,1cyclictest609-21dbus-daemon08:50:002
1541992121,0cyclictest0-21swapper/111:45:131
1541992119,1cyclictest0-21swapper/109:20:001
1534992119,1cyclictest15263-21munin-run11:05:010
1545992020,0cyclictest6201-21apt-get10:45:132
1545992020,0cyclictest0-21swapper/212:15:132
1534992020,0cyclictest0-21swapper/012:35:130
1534992020,0cyclictest0-21swapper/010:35:130
1534992020,0cyclictest0-21swapper/008:45:120
154699196,0cyclictest0-21swapper/309:03:433
154699196,0cyclictest0-21swapper/308:30:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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