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2025-10-24 - 16:51
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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 Fri Oct 24, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19342993017,0cyclictest0-21swapper/310:19:483
1934299300,29cyclictest960-21apt-get09:55:123
19340993028,1cyclictest26680-21cron10:50:012
1934099300,29cyclictest609-21dbus-daemon12:20:012
1933699300,29cyclictest9430-21cron09:04:591
19342992927,1cyclictest5939-21cron07:50:013
1934299290,28cyclictest0-21swapper/309:30:103
1934099290,28cyclictest15820-21apt-get11:35:152
1934099290,28cyclictest0-21swapper/210:00:142
1934099290,28cyclictest0-21swapper/209:35:132
1934099290,1cyclictest660-21awk09:55:002
1934099290,1cyclictest1306-21munin-run07:40:002
1933699290,28cyclictest24257-21apt-get07:20:121
19334992927,1cyclictest23939-21cron07:20:000
1933499290,28cyclictest7405-21apt-get09:00:130
1933499290,28cyclictest5931-21munin-run11:15:010
19342992827,1cyclictest21906-21apt-get07:15:103
19342992827,0cyclictest0-21swapper/308:35:133
1934299280,28cyclictest0-21swapper/309:45:133
1934299280,27cyclictest0-21swapper/309:35:143
1934299280,27cyclictest0-21swapper/307:10:123
1934299280,1cyclictest690-21munin-run09:55:013
19340992828,0cyclictest4750-21apt-get12:20:152
19340992828,0cyclictest0-21swapper/210:25:122
19340992828,0cyclictest0-21swapper/207:55:142
19340992826,1cyclictest21142-21cron09:30:012
1934099280,27cyclictest0-21swapper/207:30:102
1934099280,0cyclictest30201-21apt-get08:40:152
1934099280,0cyclictest0-21swapper/210:40:132
1934099280,0cyclictest0-21swapper/208:30:112
19336992828,0cyclictest0-21swapper/112:35:131
19336992828,0cyclictest0-21swapper/109:50:131
19336992828,0cyclictest0-21swapper/109:30:111
19336992827,1cyclictest3318-21apt-get10:00:151
1933699280,0cyclictest0-21swapper/110:20:111
19334992828,0cyclictest0-21swapper/012:15:120
19334992826,1cyclictest0-21swapper/011:25:000
19342992727,0cyclictest29294-21apt-get10:55:143
19342992727,0cyclictest0-21swapper/310:00:143
19342992727,0cyclictest0-21swapper/308:45:133
19342992726,1cyclictest25200-21apt-get11:55:153
19342992726,0cyclictest0-21swapper/310:24:593
19340992727,0cyclictest0-21swapper/210:50:142
19340992727,0cyclictest0-21swapper/209:10:112
19340992727,0cyclictest0-21swapper/207:50:032
19340992726,1cyclictest0-21swapper/208:20:142
19340992725,1cyclictest609-21dbus-daemon11:50:012
19336992727,0cyclictest10865-21apt-get11:25:131
19336992727,0cyclictest0-21swapper/108:25:131
19334992727,0cyclictest9398-21apt-get12:30:140
19334992727,0cyclictest0-21swapper/011:50:160
19334992727,0cyclictest0-21swapper/011:10:010
19334992726,1cyclictest6197-21apt-get11:15:150
19334992725,1cyclictest0-21swapper/012:15:000
1933499270,27cyclictest0-21swapper/008:00:140
1933499270,0cyclictest0-21swapper/012:00:160
19342992626,0cyclictest0-21swapper/311:35:153
19342992626,0cyclictest0-21swapper/308:20:143
19340992626,0cyclictest26110-21apt-get09:40:132
19340992626,0cyclictest19979-21apt-get10:35:162
19340992626,0cyclictest0-21swapper/210:15:122
19340992626,0cyclictest0-21swapper/207:10:122
19336992626,0cyclictest0-21swapper/110:15:121
19336992625,1cyclictest28905-21apt-get07:30:111
19336992625,0cyclictest4752-21apt-get08:55:091
19342992525,0cyclictest0-21swapper/311:15:153
19342992525,0cyclictest0-21swapper/307:35:013
19340992525,0cyclictest27546-21apt-get12:00:152
19340992525,0cyclictest0-21swapper/208:55:102
19336992525,0cyclictest20289-21perf11:45:011
19336992525,0cyclictest0-21swapper/112:25:131
19336992525,0cyclictest0-21swapper/112:10:121
19334992525,0cyclictest0-21swapper/008:45:120
19334992525,0cyclictest0-21swapper/007:40:110
19342992424,0cyclictest0-21swapper/312:05:103
19342992424,0cyclictest0-21swapper/308:50:133
19342992424,0cyclictest0-21swapper/308:40:143
19342992424,0cyclictest0-21swapper/308:00:143
19340992424,0cyclictest0-21swapper/210:55:132
19336992424,0cyclictest0-21swapper/108:15:121
19336992422,1cyclictest5961-21apt-get07:50:021
19334992424,0cyclictest0-21swapper/011:35:010
19334992423,1cyclictest0-21swapper/008:10:130
19334992422,1cyclictest12923-21munin-run11:30:000
19342992323,0cyclictest3868-21apt-get11:10:123
19342992323,0cyclictest0-21swapper/310:30:143
19342992323,0cyclictest0-21swapper/308:10:133
19336992323,0cyclictest0-21swapper/110:35:161
19334992323,0cyclictest0-21swapper/007:45:130
19342992222,0cyclictest32188-21apt-get12:10:123
19342992222,0cyclictest0-21swapper/310:35:163
19342992221,1cyclictest7708-21munin-run10:10:003
19340992222,0cyclictest8541-21apt-get11:20:142
19340992222,0cyclictest5640-21apt-get10:05:112
19340992222,0cyclictest0-21swapper/212:05:112
19340992222,0cyclictest0-21swapper/209:50:012
19340992222,0cyclictest0-21swapper/208:50:132
19340992222,0cyclictest0-21swapper/207:20:122
19336992222,0cyclictest0-21swapper/110:05:111
19336992220,1cyclictest10002-21awk10:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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