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2026-03-14 - 02:54
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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 rack8slot4.osadl.org (updated Sat Mar 14, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13051942229170,19sleep40-21swapper/419:09:064
13051942229170,19sleep40-21swapper/419:09:064
13031282228172,17sleep70-21swapper/719:07:157
13031282228172,17sleep70-21swapper/719:07:157
13051842227173,18sleep60-21swapper/619:08:596
13051842227173,18sleep60-21swapper/619:08:596
13031392227169,18sleep00-21swapper/019:07:250
13031392227169,18sleep00-21swapper/019:07:250
13031442225172,42sleep50-21swapper/519:07:315
13031442225172,42sleep50-21swapper/519:07:305
13031682224192,21sleep10-21swapper/119:07:511
13031682224192,21sleep10-21swapper/119:07:501
13029832220167,18sleep30-21swapper/319:05:113
13029832220167,18sleep30-21swapper/319:05:113
13026332220160,19sleep20-21swapper/219:05:022
13026332220160,19sleep20-21swapper/219:05:022
130549699490,25cyclictest0-21swapper/400:22:084
130549399400,5cyclictest0-21swapper/323:10:013
1305486993533,2cyclictest1352643-21latency_hist20:35:011
130548699351,2cyclictest1372300-21packagekitd21:10:021
1305502993327,5cyclictest1317367-21awk19:30:016
1305496993331,1cyclictest0-21swapper/420:10:024
1305486993323,9cyclictest369-21systemd-journal23:10:011
1305486993227,5cyclictest0-21swapper/100:10:021
1305486993227,4cyclictest0-21swapper/123:48:031
130550299310,30cyclictest369-21systemd-journal23:20:016
130550299310,1cyclictest1426126-21munin-run22:50:016
130549399310,29cyclictest1485763-21systemd-run00:40:013
130549399310,0cyclictest0-21swapper/319:30:013
130548699310,30cyclictest0-21swapper/120:28:011
130548299310,29cyclictest1426114-21idleruntime-cro22:50:010
1305502993027,2cyclictest0-21swapper/621:53:046
130550299300,29cyclictest1355329-21apt20:40:016
130550299300,28cyclictest0-21swapper/623:08:026
1305493993028,1cyclictest681-21dbus-daemon23:30:013
130549399301,1cyclictest369-21systemd-journal20:40:023
1305491993028,1cyclictest0-21swapper/220:40:022
130549199300,28cyclictest1440196-21apt-get23:18:022
130548699300,0cyclictest0-21swapper/121:25:011
130548299300,29cyclictest0-21swapper/022:05:010
1305504992928,1cyclictest1453033-21apt-get23:40:017
1305504992927,1cyclictest0-21swapper/720:13:037
1305504992927,1cyclictest0-21swapper/700:03:037
130550499290,28cyclictest0-21swapper/722:53:067
130550499290,28cyclictest0-21swapper/721:03:037
130550499290,1cyclictest1308105-21apt-config19:15:017
130550499290,1cyclictest1308105-21apt-config19:15:017
130550499290,0cyclictest0-21swapper/722:48:037
1305502992927,1cyclictest1364293-21apt-get20:58:026
1305502992927,1cyclictest1323354-21apt-get19:43:036
1305502992924,4cyclictest0-21swapper/621:25:006
130550299290,28cyclictest0-21swapper/622:05:016
130550299290,28cyclictest0-21swapper/619:25:016
130550299290,28cyclictest0-21swapper/619:25:006
130550299290,28cyclictest0-21swapper/619:13:026
130550299290,28cyclictest0-21swapper/619:13:016
130550299290,1cyclictest1-21systemd00:30:016
130549899290,28cyclictest681ktimers/500:20:025
130549699290,28cyclictest1361605-21apt-get20:53:024
130549699290,28cyclictest1320647-21apt-get19:38:024
130549699290,1cyclictest1344942-21apt-get20:23:044
1305493992928,1cyclictest0-21swapper/300:13:023
1305493992925,3cyclictest0-21swapper/321:25:013
130549399290,28cyclictest0-21swapper/321:53:033
130549399290,28cyclictest0-21swapper/321:50:013
130549399290,28cyclictest0-21swapper/320:53:023
130549199290,28cyclictest1467488-21apt-get00:08:032
130549199290,28cyclictest0-21swapper/223:48:042
130549199290,28cyclictest0-21swapper/221:33:032
130549199290,1cyclictest0-21swapper/222:30:002
1305486992928,1cyclictest0-21swapper/119:15:021
1305486992928,1cyclictest0-21swapper/119:15:021
1305486992927,2cyclictest0-21swapper/122:13:021
130548699291,27cyclictest0-21swapper/121:53:041
130548699290,28cyclictest0-21swapper/123:23:001
130548699290,1cyclictest0-21swapper/120:25:021
1305482992927,1cyclictest1378032-21apt-get21:23:020
1305482992926,2cyclictest1474925-21dump-pmu-power00:20:010
130548299290,28cyclictest0-21swapper/023:33:030
130548299290,28cyclictest0-21swapper/020:58:020
130548299290,1cyclictest0-21swapper/020:15:020
1305504992828,0cyclictest0-21swapper/719:38:037
130550499280,28cyclictest0-21swapper/722:20:017
130550499280,28cyclictest0-21swapper/700:30:027
130550499280,28cyclictest0-21swapper/700:00:017
130550499280,28cyclictest0-21swapper/700:00:007
130550499280,0cyclictest0-21swapper/723:03:027
1305502992828,0cyclictest0-21swapper/620:53:016
1305502992827,1cyclictest681-21dbus-daemon21:50:006
130549899280,28cyclictest0-21swapper/500:35:015
130549899280,27cyclictest0-21swapper/523:28:015
1305496992828,0cyclictest0-21swapper/422:33:044
1305496992828,0cyclictest0-21swapper/422:03:024
1305496992827,1cyclictest0-21swapper/421:28:014
1305496992826,1cyclictest1423430-21idleruntime-cro22:45:004
1305496992826,1cyclictest0-21swapper/423:40:024
130549699280,27cyclictest0-21swapper/421:55:004
1305493992822,5cyclictest1328105-21latency_hist19:50:023
1305491992826,1cyclictest1-21systemd22:15:012
1305491992826,1cyclictest0-21swapper/223:05:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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