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2026-04-17 - 06:28
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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 Fri Apr 17, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10700942237182,18sleep10-21swapper/119:07:091
10700952227170,17sleep20-21swapper/219:07:102
10701142223168,18sleep30-21swapper/319:07:273
10700782218189,19sleep50-21swapper/519:06:565
10700552215186,18sleep00-21swapper/019:06:360
10721852212184,18sleep60-21swapper/619:09:236
10721862210180,19sleep70-21swapper/719:09:247
10699762207177,19sleep40-21swapper/419:05:264
1072469995757,0cyclictest0-21swapper/419:35:014
107246799350,32cyclictest681-21dbus-daemon00:35:003
1072478993332,1cyclictest0-21swapper/719:35:017
107246799320,31cyclictest1159947-21apt21:50:013
107246799320,31cyclictest1159947-21apt21:50:003
1072467993128,3cyclictest0-21swapper/320:20:013
107246499310,3cyclictest1157253-21sh21:45:012
1072457993127,3cyclictest369-21systemd-journal21:50:010
1072457993127,3cyclictest369-21systemd-journal21:50:010
1072478993028,2cyclictest0-21swapper/721:20:017
1072478993028,1cyclictest1-21systemd21:45:017
107247899300,29cyclictest1238348-21sh00:15:017
107247899300,29cyclictest1075026-21turbostat.cron19:15:017
1072475993026,3cyclictest0-21swapper/619:50:016
107247599300,2cyclictest1119562-21debian-sa120:35:016
107247599300,29cyclictest1224852-21systemd-run23:50:016
107247599300,28cyclictest0-21swapper/619:12:596
1072473993027,2cyclictest369-21systemd-journal23:20:025
107247399300,29cyclictest1187760-21apt-get22:42:575
107247399300,29cyclictest1083786-21sh19:30:015
1072462993029,1cyclictest0-21swapper/122:15:001
1072462993028,1cyclictest1100829-21apt-get20:02:581
1072462993028,1cyclictest0-21swapper/121:05:011
1072462993027,2cyclictest1227495-21latency_hist23:55:011
1072457993027,2cyclictest681-21dbus-daemon23:10:020
1072478992927,1cyclictest1147116-21apt-get21:28:007
1072478992927,1cyclictest1098124-21apt-get19:57:587
1072478992926,2cyclictest369-21systemd-journal19:25:007
107247899290,29cyclictest0-21swapper/723:30:017
1072475992928,1cyclictest0-21swapper/619:30:006
1072475992927,1cyclictest1190445-21apt-get22:47:576
1072475992926,3cyclictest0-21swapper/621:45:016
1072475992925,3cyclictest369-21systemd-journal22:15:016
107247599290,28cyclictest0-21swapper/622:33:006
107247599290,28cyclictest0-21swapper/621:07:556
107247599290,28cyclictest0-21swapper/620:07:586
107247599290,1cyclictest1211979-21apt-get23:27:586
107247599290,1cyclictest1178791-21sh22:25:016
107247599290,1cyclictest1149797-21apt-get21:32:566
1072473992927,1cyclictest1133658-21apt-get21:02:585
107247399290,28cyclictest1133077-21systemd-run21:00:015
107247399290,28cyclictest1109152-21apt-get20:17:565
107247399290,28cyclictest0-21swapper/523:27:595
107247399290,28cyclictest0-21swapper/521:17:575
107247399290,28cyclictest0-21swapper/520:50:005
107247399290,28cyclictest0-21swapper/500:22:585
107246999290,28cyclictest0-21swapper/421:57:584
107246999290,1cyclictest1111219-21cron20:20:014
107246999290,1cyclictest1076326-21apt-get19:17:574
1072467992927,1cyclictest0-21swapper/323:58:013
1072467992927,1cyclictest0-21swapper/320:42:593
1072467992927,1cyclictest0-21swapper/319:25:013
107246799290,28cyclictest0-21swapper/321:30:013
107246799290,28cyclictest0-21swapper/319:27:583
107246799290,1cyclictest1120186-21apt-get20:37:593
107246499290,2cyclictest0-21swapper/222:50:022
107246499290,28cyclictest0-21swapper/223:05:022
107246499290,1cyclictest278-21plymouthd21:40:012
1072462992927,1cyclictest1154549-21sh21:40:011
1072462992927,1cyclictest0-21swapper/122:42:581
107246299290,28cyclictest0-21swapper/123:47:581
107246299290,28cyclictest0-21swapper/121:32:551
107246299290,28cyclictest0-21swapper/100:17:591
1072457992928,1cyclictest0-21swapper/021:30:010
107245799290,28cyclictest1083787-21apt-get19:30:020
107245799290,28cyclictest0-21swapper/023:32:580
107245799290,28cyclictest0-21swapper/020:42:580
107245799290,1cyclictest1076326-21apt-get19:17:570
107245799290,1cyclictest0-21swapper/021:35:000
107245799290,1cyclictest0-21swapper/020:25:010
1072478992828,0cyclictest0-21swapper/722:30:027
1072478992827,1cyclictest681-21dbus-daemon23:15:027
107247899280,28cyclictest0-21swapper/720:35:017
107247899280,27cyclictest0-21swapper/722:52:587
107247899280,27cyclictest0-21swapper/720:52:567
1072475992827,1cyclictest0-21swapper/621:02:586
1072475992827,1cyclictest0-21swapper/600:12:586
1072475992827,1cyclictest0-21swapper/600:10:016
1072475992826,1cyclictest1181479-21sh22:30:016
1072475992826,1cyclictest1157881-21apt-get21:47:586
1072475992826,1cyclictest1157881-21apt-get21:47:586
107247599280,27cyclictest0-21swapper/622:00:016
1072469992827,1cyclictest0-21swapper/423:20:024
1072469992827,1cyclictest0-21swapper/422:37:594
107246999280,28cyclictest0-21swapper/423:58:014
107246999280,28cyclictest0-21swapper/422:10:014
107246999280,28cyclictest0-21swapper/419:50:014
107246999280,27cyclictest0-21swapper/422:57:594
107246999280,27cyclictest0-21swapper/421:42:574
1072467992827,0cyclictest0-21swapper/322:47:573
1072467992826,1cyclictest1222746-21apt-get23:47:593
1072467992826,1cyclictest0-21swapper/320:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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