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2025-11-28 - 09:22
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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 Nov 28, 2025 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10799742229175,44sleep30-21swapper/319:05:213
10821012220186,22sleep40-21swapper/419:08:044
10821082219167,41sleep00-21swapper/019:08:080
10820162216187,18sleep70-21swapper/719:06:547
10822152215185,18sleep50-21swapper/519:09:415
10799632215188,17sleep10-21swapper/119:05:111
10799642214185,18sleep20-21swapper/219:05:122
10819702206179,17sleep60-21swapper/619:06:136
1082442993331,1cyclictest0-21swapper/222:00:002
108245999320,31cyclictest0-21swapper/722:05:587
108245999320,1cyclictest1244097-21apt-get00:05:557
108245399323,28cyclictest1216369-21sh23:15:005
108244799320,32cyclictest0-21swapper/320:30:563
108245799310,30cyclictest3820478-21systemd-journal21:45:006
108245399310,3cyclictest1156540-21sh21:25:005
1082437993127,3cyclictest0-21swapper/122:40:561
1082437993127,3cyclictest0-21swapper/122:40:561
1082437993125,5cyclictest1178362-21dump-pmu-power22:05:001
1082436993128,2cyclictest1102136-21sh19:45:010
1082459993027,3cyclictest0-21swapper/722:40:567
1082459993027,3cyclictest0-21swapper/722:40:567
108245999300,29cyclictest1222258-21apt-get23:25:577
108245999300,29cyclictest0-21swapper/720:55:567
1082453993028,2cyclictest0-21swapper/520:40:005
1082451993027,2cyclictest1246318-21munin-run00:10:014
108244299300,30cyclictest1243649-21awk00:05:012
1082437993027,2cyclictest0-21swapper/122:05:581
108243799300,29cyclictest1170305-21awk21:50:001
1082459992926,2cyclictest0-21swapper/721:35:587
1082459992924,4cyclictest1178360-21apt22:05:007
108245799290,28cyclictest0-21swapper/623:35:006
108245799290,1cyclictest1189931-21apt-get22:25:576
108245799290,1cyclictest1143558-21apt-get21:01:006
108245799290,1cyclictest0-21swapper/623:40:576
108245399290,28cyclictest0-21swapper/521:25:595
108245399290,1cyclictest671rcuc/500:00:585
1082451992927,1cyclictest1255138-21apt-get00:25:574
108245199290,28cyclictest0-21swapper/422:30:564
108245199290,28cyclictest0-21swapper/419:45:554
108245199290,28cyclictest0-21swapper/419:35:574
108245199290,1cyclictest1093785-21turbostat.cron19:30:014
1082447992928,1cyclictest1148439-21cron21:10:003
1082447992928,1cyclictest0-21swapper/321:55:563
1082447992928,1cyclictest0-21swapper/300:31:003
108244799290,28cyclictest0-21swapper/323:10:573
108244799290,1cyclictest1246787-21apt-get00:10:563
1082442992924,4cyclictest3820478-21systemd-journal23:35:002
108244299290,28cyclictest1230346-21apt-get23:40:572
108244299290,28cyclictest0-21swapper/220:40:002
108244299290,28cyclictest0-21swapper/200:10:562
108244299290,1cyclictest0-21swapper/222:05:002
1082437992927,1cyclictest0-21swapper/120:40:561
108243799290,28cyclictest0-21swapper/100:00:581
108243699290,28cyclictest0-21swapper/022:10:560
108243699290,28cyclictest0-21swapper/021:50:580
108243699290,28cyclictest0-21swapper/021:40:550
108243699290,28cyclictest0-21swapper/021:30:000
108243699290,28cyclictest0-21swapper/000:31:000
108243699290,28cyclictest0-21swapper/000:10:560
108243699290,1cyclictest0-21swapper/022:50:000
1082459992827,1cyclictest0-21swapper/700:15:587
1082459992826,1cyclictest0-21swapper/719:55:567
1082459992825,2cyclictest1088383-21cron19:20:007
1082457992828,0cyclictest0-21swapper/623:10:566
1082457992827,1cyclictest0-21swapper/619:50:586
1082457992826,1cyclictest1192620-21apt-get22:30:576
1082457992826,1cyclictest0-21swapper/623:35:556
108245799280,27cyclictest0-21swapper/619:40:556
1082453992827,1cyclictest0-21swapper/500:30:015
1082453992826,2cyclictest0-21swapper/519:20:595
108245399280,28cyclictest0-21swapper/522:05:585
108245399280,1cyclictest0-21swapper/520:25:005
1082451992827,1cyclictest0-21swapper/420:40:004
1082447992827,1cyclictest0-21swapper/323:50:003
108244799280,28cyclictest0-21swapper/323:15:563
108244799280,28cyclictest0-21swapper/322:10:563
1082442992828,0cyclictest0-21swapper/220:25:572
1082437992827,0cyclictest0-21swapper/122:35:571
1082437992827,0cyclictest0-21swapper/122:35:571
1082437992826,2cyclictest0-21swapper/121:35:581
1082437992826,1cyclictest1165378-21apt-get21:40:551
108243799280,0cyclictest0-21swapper/123:25:571
108243699280,0cyclictest0-21swapper/023:35:550
1082459992727,0cyclictest0-21swapper/722:35:577
1082459992727,0cyclictest0-21swapper/722:35:577
1082459992727,0cyclictest0-21swapper/720:40:567
1082457992727,0cyclictest0-21swapper/600:20:576
1082453992727,0cyclictest0-21swapper/523:55:015
1082453992727,0cyclictest0-21swapper/521:50:585
1082453992726,1cyclictest0-21swapper/522:10:565
1082453992725,2cyclictest0-21swapper/519:15:575
1082451992727,0cyclictest0-21swapper/421:15:564
1082451992726,1cyclictest0-21swapper/420:00:554
1082451992725,1cyclictest3820478-21systemd-journal00:35:014
1082451992725,1cyclictest1143558-21apt-get21:01:014
108245199270,0cyclictest0-21swapper/422:20:564
1082447992727,0cyclictest0-21swapper/323:55:563
1082447992727,0cyclictest0-21swapper/320:50:573
1082447992727,0cyclictest0-21swapper/300:35:553
1082447992726,1cyclictest1254657-21dump-pmu-power00:25:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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