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2025-11-20 - 02:22
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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 19, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1991399330,28cyclictest0-21swapper/311:10:143
19907993228,3cyclictest0-21swapper/010:10:010
1990799320,0cyclictest7936-21apt-get10:10:130
19913993126,4cyclictest19639-21apt-get10:35:173
1991399310,30cyclictest14638-21ls10:25:013
1990899310,27cyclictest0-21swapper/108:50:111
19913992925,3cyclictest0-21swapper/310:10:133
19913992923,5cyclictest0-21swapper/310:10:003
1991399290,28cyclictest0-21swapper/309:50:133
1991399290,28cyclictest0-21swapper/308:45:123
19912992928,1cyclictest6758-21awk12:25:012
19912992928,1cyclictest10257-21apt-get10:15:132
1991299290,28cyclictest12002-21apt-get12:35:142
1991299290,28cyclictest0-21swapper/210:55:132
19913992828,0cyclictest0-21swapper/309:05:133
19913992826,2cyclictest0-21swapper/309:25:013
1991399280,27cyclictest0-21swapper/309:00:153
1991399280,0cyclictest0-21swapper/312:35:153
1991399280,0cyclictest0-21swapper/312:20:173
19912992827,1cyclictest15842-21apt-get11:35:132
1991299280,0cyclictest31612-21apt-get11:00:142
1991299280,0cyclictest0-21swapper/210:20:142
19908992826,1cyclictest0-21swapper/110:35:001
1990899280,28cyclictest0-21swapper/111:15:151
19907992827,0cyclictest1514-21apt-get11:05:150
1990799280,28cyclictest0-21swapper/011:30:120
1990799280,0cyclictest0-21swapper/011:00:160
19913992727,0cyclictest0-21swapper/312:05:123
19913992726,0cyclictest0-21swapper/309:55:133
1991399270,0cyclictest0-21swapper/309:40:153
19912992727,0cyclictest0-21swapper/212:25:032
19912992727,0cyclictest0-21swapper/211:50:152
19912992727,0cyclictest0-21swapper/209:15:122
1991299270,0cyclictest0-21swapper/208:05:142
19908992727,0cyclictest0-21swapper/111:35:121
19908992726,1cyclictest22896-21munin-run11:50:011
19908992726,1cyclictest0-21swapper/109:15:131
19908992723,4cyclictest3842-21apt-get11:10:151
1990899270,0cyclictest0-21swapper/110:10:141
19907992727,0cyclictest0-21swapper/011:55:140
19907992727,0cyclictest0-21swapper/008:20:140
19907992725,1cyclictest0-21swapper/012:30:010
19913992626,0cyclictest0-21swapper/312:00:133
19913992626,0cyclictest0-21swapper/308:20:143
19913992626,0cyclictest0-21swapper/308:00:163
19913992624,1cyclictest609-21dbus-daemon07:15:003
19912992626,0cyclictest0-21swapper/211:55:142
19912992626,0cyclictest0-21swapper/210:00:122
19908992626,0cyclictest5611-21apt-get10:05:141
19908992626,0cyclictest26638-21apt-get10:50:131
19908992626,0cyclictest0-21swapper/109:35:131
19908992626,0cyclictest0-21swapper/107:25:141
19908992625,1cyclictest615-21rs:main1
19907992626,0cyclictest0-21swapper/007:25:130
19913992525,0cyclictest0-21swapper/311:00:153
19912992525,0cyclictest4175-21apt-get07:45:132
19908992525,0cyclictest1848-21apt-get07:40:121
19908992525,0cyclictest0-21swapper/112:15:141
19908992525,0cyclictest0-21swapper/111:20:151
19908992525,0cyclictest0-21swapper/109:40:141
19908992524,1cyclictest20856-21apt-get08:20:131
19907992525,0cyclictest19380-21apt-get09:25:120
19907992525,0cyclictest0-21swapper/011:15:140
19907992525,0cyclictest0-21swapper/011:10:140
19907992525,0cyclictest0-21swapper/009:00:160
19907992525,0cyclictest0-21swapper/008:40:140
19907992522,2cyclictest31518-21cron07:35:000
19913992424,0cyclictest0-21swapper/311:30:133
19913992424,0cyclictest0-21swapper/310:15:123
19913992424,0cyclictest0-21swapper/307:25:153
19912992424,0cyclictest0-21swapper/209:55:132
19912992422,1cyclictest1521-21cron07:40:012
19912992422,1cyclictest0-21swapper/212:20:012
19908992424,0cyclictest0-21swapper/112:20:161
19908992423,1cyclictest32496-21apt-get08:45:111
19907992424,0cyclictest2113-21perf12:15:000
19907992424,0cyclictest0-21swapper/007:40:140
19907992423,0cyclictest11173-21apt-get08:00:150
19912992323,0cyclictest0-21swapper/209:35:142
19912992323,0cyclictest0-21swapper/208:15:002
19912992323,0cyclictest0-21swapper/207:30:142
19912992322,1cyclictest10564-21apt-get11:25:012
19908992323,0cyclictest0-21swapper/112:35:141
19908992323,0cyclictest0-21swapper/109:50:131
19908992323,0cyclictest0-21swapper/109:00:151
19908992322,1cyclictest22228-21munin-run07:15:011
19908992320,3cyclictest0-21swapper/110:35:161
19908992320,3cyclictest0-21swapper/109:25:021
19907992323,0cyclictest0-21swapper/012:05:120
19907992323,0cyclictest0-21swapper/009:15:120
19913992222,0cyclictest0-21swapper/311:55:143
19913992222,0cyclictest0-21swapper/311:05:153
19912992222,0cyclictest0-21swapper/211:45:152
19912992222,0cyclictest0-21swapper/210:05:132
19907992222,0cyclictest0-21swapper/010:35:160
19907992220,1cyclictest10916-21awk08:00:010
19913992120,1cyclictest2117-21munin-run12:15:003
19912992121,0cyclictest0-21swapper/207:50:122
19912992119,1cyclictest23747-21sh09:35:002
19908992121,0cyclictest0-21swapper/112:05:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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