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2025-11-22 - 21:12
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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 Sat Nov 22, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31731993232,0cyclictest31195-21apt-get09:25:121
31739993128,2cyclictest32346-21cron08:20:023
3173199300,29cyclictest0-21swapper/111:45:011
31728993028,1cyclictest7821-21awk09:45:010
31728993028,1cyclictest303-21systemd-journal09:20:000
3173999290,28cyclictest32666-21apt-get08:20:153
3173999290,28cyclictest0-21swapper/311:30:133
3173999290,1cyclictest23274-21awk12:35:023
3173999290,1cyclictest0-21swapper/310:55:133
31735992927,1cyclictest609-21dbus-daemon07:40:022
3173599290,28cyclictest0-21swapper/211:40:142
3173599290,28cyclictest0-21swapper/211:20:132
3173599290,28cyclictest0-21swapper/210:15:012
31731992927,1cyclictest609-21dbus-daemon07:50:001
31731992927,1cyclictest16291-21sendmail-msp12:20:011
31731992927,1cyclictest0-21swapper/109:24:591
31728992926,2cyclictest1624-21munin-run07:15:010
3172899290,1cyclictest9302-21munin-run08:40:000
3172899290,1cyclictest4014-21apt-get10:45:140
3172899290,1cyclictest20681-21apt-get11:20:130
3173999280,28cyclictest0-21swapper/307:25:133
31735992827,1cyclictest23562-21apt-get12:35:152
3173599280,28cyclictest15692-21cron07:45:022
3173599280,28cyclictest0-21swapper/212:25:142
3173599280,0cyclictest0-21swapper/211:25:142
3173599280,0cyclictest0-21swapper/211:15:142
3173599280,0cyclictest0-21swapper/210:05:142
31731992828,0cyclictest0-21swapper/112:20:131
31731992828,0cyclictest0-21swapper/110:00:141
31731992827,1cyclictest0-21swapper/111:25:141
3173199280,27cyclictest0-21swapper/108:30:121
3173199280,0cyclictest0-21swapper/107:25:131
31728992827,1cyclictest8113-21apt-get09:45:170
31728992827,1cyclictest1890-21apt-get07:15:140
3172899280,28cyclictest0-21swapper/009:30:130
3172899280,0cyclictest0-21swapper/009:55:140
31739992727,0cyclictest0-21swapper/312:05:013
31739992727,0cyclictest0-21swapper/311:55:143
31739992727,0cyclictest0-21swapper/308:40:123
31739992727,0cyclictest0-21swapper/308:05:143
31739992725,1cyclictest611-21avahi-daemon08:30:013
3173999270,27cyclictest0-21swapper/308:55:013
3173999270,0cyclictest0-21swapper/311:15:143
3173999270,0cyclictest0-21swapper/311:10:123
3173999270,0cyclictest0-21swapper/310:40:133
3173999270,0cyclictest0-21swapper/310:40:133
31735992727,0cyclictest0-21swapper/209:25:122
31735992725,1cyclictest15105-21apt-get10:00:142
3173599270,0cyclictest0-21swapper/209:50:152
3173599270,0cyclictest0-21swapper/208:20:142
31731992727,0cyclictest0-21swapper/112:30:151
31731992727,0cyclictest0-21swapper/109:05:121
31731992727,0cyclictest0-21swapper/108:15:031
3173199270,0cyclictest0-21swapper/108:00:141
31728992727,0cyclictest30054-21apt-get11:40:130
31728992727,0cyclictest21238-21apt-get12:30:140
31728992727,0cyclictest11217-21apt-get07:35:130
31728992727,0cyclictest0-21swapper/010:20:120
31728992727,0cyclictest0-21swapper/007:20:150
31728992725,1cyclictest11341-21perf12:10:010
3172899270,0cyclictest11916-21apt-get12:10:150
3172899270,0cyclictest0-21swapper/008:25:120
31739992626,0cyclictest0-21swapper/311:35:133
31739992626,0cyclictest0-21swapper/309:05:123
31739992626,0cyclictest0-21swapper/308:00:003
31739992624,1cyclictest7226-21apt-get08:35:153
31735992626,0cyclictest0-21swapper/211:50:132
31731992626,0cyclictest32391-21apt-get11:45:171
31731992626,0cyclictest25895-21apt-get09:15:011
31731992626,0cyclictest18910-21apt-get12:25:141
31731992626,0cyclictest0-21swapper/110:45:151
31731992626,0cyclictest0-21swapper/109:50:151
31731992626,0cyclictest0-21swapper/107:40:141
31731992626,0cyclictest0-21swapper/107:10:141
31728992626,0cyclictest0-21swapper/011:00:130
31728992626,0cyclictest0-21swapper/009:20:120
31728992626,0cyclictest0-21swapper/008:50:000
31739992525,0cyclictest0-21swapper/311:05:033
31739992525,0cyclictest0-21swapper/308:50:113
31739992523,1cyclictest303-21systemd-journal11:25:003
31735992525,0cyclictest18319-21apt-get07:50:162
31735992525,0cyclictest0-21swapper/211:30:132
31735992525,0cyclictest0-21swapper/210:40:132
31735992525,0cyclictest0-21swapper/210:40:132
31735992524,1cyclictest0-21swapper/212:05:132
31735992524,1cyclictest0-21swapper/208:30:122
31735992524,1cyclictest0-21swapper/208:00:132
31731992525,0cyclictest0-21swapper/109:00:141
31728992525,0cyclictest19198-21apt-get09:00:130
31728992525,0cyclictest0-21swapper/010:55:120
31728992525,0cyclictest0-21swapper/010:50:130
31739992424,0cyclictest0-21swapper/310:35:133
31735992424,0cyclictest0-21swapper/210:20:122
31735992424,0cyclictest0-21swapper/207:45:172
31731992424,0cyclictest25328-21apt-get11:30:131
31728992424,0cyclictest9575-21apt-get08:40:140
31739992323,0cyclictest26773-21perf10:25:013
31739992323,0cyclictest0-21swapper/312:10:143
31739992323,0cyclictest0-21swapper/309:30:123
31739992323,0cyclictest0-21swapper/308:45:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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