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2025-11-20 - 09:16
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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 Nov 20, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
891099433,2cyclictest892-21cron22:50:001
891099310,30cyclictest6561-21chrt00:10:131
891199300,29cyclictest1323-21pachectl00:00:002
891399290,28cyclictest609-21dbus-daemon22:40:003
891399290,28cyclictest25443-21apt-get20:15:133
890999290,28cyclictest3239-21cron22:55:000
8913992828,0cyclictest0-21swapper/322:10:103
891399280,0cyclictest0-21swapper/323:00:123
891399280,0cyclictest0-21swapper/322:15:133
8911992827,1cyclictest20534-21munin-run20:05:002
8911992826,1cyclictest19612-21latency_hist23:30:022
891199280,27cyclictest24295-21apt-get22:30:122
891199280,0cyclictest0-21swapper/222:50:122
8910992828,0cyclictest14297-21apt-get19:50:201
8910992826,1cyclictest0-21swapper/119:15:001
891099280,27cyclictest0-21swapper/121:20:101
890999280,28cyclictest0-21swapper/023:10:120
890999280,1cyclictest10176-21perf19:20:010
890999280,0cyclictest31546-21apt-get23:55:130
8913992727,0cyclictest13295-21perf00:25:003
8913992727,0cyclictest0-21swapper/322:45:133
8913992727,0cyclictest0-21swapper/321:40:103
891399270,0cyclictest0-21swapper/320:00:153
8911992727,0cyclictest0-21swapper/223:15:122
8911992727,0cyclictest0-21swapper/223:15:122
8911992727,0cyclictest0-21swapper/222:00:142
8911992727,0cyclictest0-21swapper/221:20:002
891199270,27cyclictest0-21swapper/200:25:132
891199270,0cyclictest0-21swapper/223:35:122
891199270,0cyclictest0-21swapper/222:10:092
8910992727,0cyclictest0-21swapper/123:45:171
8910992727,0cyclictest0-21swapper/123:40:101
8910992727,0cyclictest0-21swapper/123:05:111
8910992727,0cyclictest0-21swapper/120:10:151
8910992727,0cyclictest0-21swapper/119:55:081
8909992727,0cyclictest0-21swapper/000:25:120
8913992624,1cyclictest609-21dbus-daemon19:35:023
8911992626,0cyclictest8886-21apt-get00:15:132
8911992626,0cyclictest0-21swapper/223:20:112
8911992626,0cyclictest0-21swapper/222:15:122
8911992626,0cyclictest0-21swapper/220:35:112
8911992626,0cyclictest0-21swapper/219:50:202
8911992624,1cyclictest1562-21apt-get00:00:112
8910992626,0cyclictest0-21swapper/122:30:131
8910992626,0cyclictest0-21swapper/100:35:131
8910992625,1cyclictest22223-21apt-get23:35:121
8910992625,1cyclictest1189-21apt-get22:50:121
8909992626,0cyclictest8191-21apt-get23:05:120
8909992626,0cyclictest27314-21apt-get20:17:540
8909992626,0cyclictest0-21swapper/023:50:160
8909992626,0cyclictest0-21swapper/023:00:130
8909992626,0cyclictest0-21swapper/021:50:130
8909992626,0cyclictest0-21swapper/019:55:080
8909992626,0cyclictest0-21swapper/000:10:130
8913992525,0cyclictest0-21swapper/320:50:133
8910992524,1cyclictest6300-21munin-run00:10:011
8909992525,0cyclictest3526-21apt-get22:55:140
8909992525,0cyclictest0-21swapper/023:40:090
8909992524,1cyclictest18215-21apt-get00:35:130
8909992524,0cyclictest0-21swapper/020:10:020
8913992424,0cyclictest0-21swapper/321:35:113
8913992424,0cyclictest0-21swapper/321:15:113
8913992424,0cyclictest0-21swapper/321:10:143
8913992423,1cyclictest15634-21munin-run00:30:003
8911992422,1cyclictest623-21polkitd19:40:022
8910992424,0cyclictest21088-21apt-get21:15:101
8910992424,0cyclictest20794-21apt-get20:05:131
8910992424,0cyclictest0-21swapper/123:20:111
8910992424,0cyclictest0-21swapper/122:05:111
8910992424,0cyclictest0-21swapper/121:10:131
8910992424,0cyclictest0-21swapper/120:55:011
8910992424,0cyclictest0-21swapper/100:25:131
8909992424,0cyclictest0-21swapper/023:35:110
8909992424,0cyclictest0-21swapper/022:30:130
8909992424,0cyclictest0-21swapper/000:15:130
8913992323,0cyclictest0-21swapper/322:25:103
8911992323,0cyclictest24567-21apt-get23:40:102
8911992323,0cyclictest23120-21apt-get20:10:142
8911992323,0cyclictest0-21swapper/221:50:132
8910992323,0cyclictest0-21swapper/123:50:151
8913992222,0cyclictest0-21swapper/320:30:153
8913992222,0cyclictest0-21swapper/300:30:173
8911992222,0cyclictest0-21swapper/220:05:122
8911992221,0cyclictest0-21swapper/221:40:012
8910992222,0cyclictest0-21swapper/121:35:111
8910992221,1cyclictest0-21swapper/121:29:591
8909992222,0cyclictest14943-21apt-get22:10:080
8913992121,0cyclictest0-21swapper/323:25:143
8913992121,0cyclictest0-21swapper/322:05:123
8913992121,0cyclictest0-21swapper/321:00:123
891199210,9cyclictest0-21swapper/221:30:112
8910992121,0cyclictest0-21swapper/122:00:141
8909992120,1cyclictest9973-21apt-get22:00:130
8909992120,0cyclictest0-21swapper/020:05:010
8913992020,0cyclictest0-21swapper/323:45:173
8913992020,0cyclictest0-21swapper/321:25:153
8913992019,1cyclictest4233-21apt-get00:05:143
8913992019,1cyclictest0-21swapper/321:30:113
8913992018,1cyclictest11433-21sh19:30:003
8910992020,0cyclictest0-21swapper/100:15:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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