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2026-04-12 - 15:35
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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 Sun Apr 12, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1668399339,24cyclictest0-21swapper/207:15:552
1668499311,29cyclictest21364-21cron07:20:013
1668199310,30cyclictest5458-21cron12:30:010
1668299300,1cyclictest307-21systemd-journal11:45:011
1668199300,1cyclictest12327-21idleruntime-cro08:10:010
1668499290,28cyclictest21726-21munin-run08:30:003
16683992927,1cyclictest31887-21munin-run10:00:012
16683992927,1cyclictest26383-21perf08:40:012
1668399290,28cyclictest0-21swapper/207:15:002
1668399290,1cyclictest5746-21apt-get12:30:112
16682992928,1cyclictest13687-21apt-get10:30:121
16682992927,1cyclictest5453-21cron12:30:011
16682992927,1cyclictest12325-21cron08:10:011
16682992927,1cyclictest0-21swapper/108:20:011
1668299290,28cyclictest0-21swapper/109:40:111
16681992927,1cyclictest22549-21perf09:40:000
1668199290,28cyclictest0-21swapper/009:25:120
16684992828,0cyclictest24308-21apt-get08:35:123
1668499280,27cyclictest0-21swapper/308:50:123
16683992828,0cyclictest0-21swapper/210:35:132
16683992827,1cyclictest11636-21munin-run11:35:012
1668399280,0cyclictest0-21swapper/212:35:142
16682992828,0cyclictest18114-21apt-get09:30:111
16682992828,0cyclictest0-21swapper/108:25:111
1668299280,0cyclictest0-21swapper/111:30:101
1668299280,0cyclictest0-21swapper/108:35:121
16681992828,0cyclictest0-21swapper/011:00:130
16681992828,0cyclictest0-21swapper/009:55:120
16681992828,0cyclictest0-21swapper/008:30:000
1668199280,0cyclictest0-21swapper/011:45:120
1668199280,0cyclictest0-21swapper/009:15:120
1668199280,0cyclictest0-21swapper/009:10:100
16684992727,0cyclictest3422-21apt-get12:25:113
1668499270,0cyclictest0-21swapper/307:35:133
16683992727,0cyclictest0-21swapper/212:15:122
16683992727,0cyclictest0-21swapper/209:45:102
16683992727,0cyclictest0-21swapper/208:55:112
16683992727,0cyclictest0-21swapper/207:55:112
16683992727,0cyclictest0-21swapper/207:30:112
1668399270,0cyclictest0-21swapper/210:25:012
16682992727,0cyclictest0-21swapper/111:00:131
16682992727,0cyclictest0-21swapper/109:35:111
16682992725,1cyclictest17841-21perf09:30:011
1668299270,0cyclictest0-21swapper/110:20:121
1668299270,0cyclictest0-21swapper/109:10:101
16681992727,0cyclictest4151-21apt-get09:00:130
16681992727,0cyclictest31600-21apt-get08:50:110
16681992727,0cyclictest0-21swapper/008:35:110
16681992727,0cyclictest0-21swapper/007:10:110
1668199270,0cyclictest0-21swapper/010:20:110
16684992626,0cyclictest3303-21apt-get07:50:123
16684992626,0cyclictest0-21swapper/311:55:123
16684992626,0cyclictest0-21swapper/310:50:123
16684992626,0cyclictest0-21swapper/310:45:113
16684992626,0cyclictest0-21swapper/310:10:113
16684992626,0cyclictest0-21swapper/309:05:123
1668399269,13cyclictest151rcu_preempt09:19:032
16683992626,0cyclictest0-21swapper/211:35:132
16683992626,0cyclictest0-21swapper/211:05:102
1668399261,25cyclictest0-21swapper/211:44:382
16682992626,0cyclictest0-21swapper/109:15:121
16682992626,0cyclictest0-21swapper/107:20:121
16681992626,0cyclictest0-21swapper/009:40:110
16681992626,0cyclictest0-21swapper/008:00:130
16684992525,0cyclictest22836-21apt-get09:40:113
16684992525,0cyclictest0-21swapper/310:55:103
16684992525,0cyclictest0-21swapper/309:30:113
16684992525,0cyclictest0-21swapper/309:10:103
16684992525,0cyclictest0-21swapper/308:45:123
16683992525,0cyclictest977-21apt-get07:45:132
16683992525,0cyclictest6694-21apt-get10:15:122
16683992525,0cyclictest0-21swapper/208:50:022
16683992523,1cyclictest621-21dbus-daemon11:30:012
16682992525,0cyclictest17163-21apt-get11:45:121
16682992524,1cyclictest32147-21apt-get10:00:111
16681992525,0cyclictest0-21swapper/007:15:110
16681992524,1cyclictest32381-21cron11:10:010
16684992424,0cyclictest21658-21apt-get07:20:123
16684992424,0cyclictest19399-21perf08:24:593
16684992424,0cyclictest13463-21apt-get09:20:123
16684992424,0cyclictest0-21swapper/312:30:113
16684992424,0cyclictest0-21swapper/312:15:133
16684992424,0cyclictest0-21swapper/310:40:123
16684992424,0cyclictest0-21swapper/310:20:123
16684992424,0cyclictest0-21swapper/309:15:123
16682992424,0cyclictest0-21swapper/109:55:121
16681992424,0cyclictest25379-21apt-get10:55:110
16681992424,0cyclictest0-21swapper/010:55:010
16684992323,0cyclictest0-21swapper/311:45:123
16684992323,0cyclictest0-21swapper/310:25:103
16684992321,1cyclictest1753-21cron10:05:003
16683992323,0cyclictest12611-21apt-get08:10:122
16682992323,0cyclictest0-21swapper/109:00:131
16682992323,0cyclictest0-21swapper/108:50:111
16681992323,0cyclictest12195-21apt-get11:35:140
16681992322,1cyclictest28365-21munin-run07:35:010
16681992321,1cyclictest31045-21munin-run08:50:010
16681992321,1cyclictest15723-21awk10:35:000
16684992222,0cyclictest24210-21apt-get12:00:163
16683992222,0cyclictest0-21swapper/209:35:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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