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2025-11-03 - 08:10
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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 Mon Nov 03, 2025 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11622662231175,17sleep10-21swapper/119:05:271
11643052225172,17sleep00-21swapper/019:06:550
11622722223166,18sleep50-21swapper/519:05:315
11644812221187,22sleep40-21swapper/419:09:244
11643642217187,19sleep70-21swapper/719:07:427
11644802211182,18sleep30-21swapper/319:09:233
11644832209175,22sleep60-21swapper/619:09:266
11642892207173,21sleep20-21swapper/219:06:412
1164727993432,1cyclictest0-21swapper/100:20:001
1164745993230,1cyclictest1225069-21sh21:00:016
1164736993225,6cyclictest1254724-21debian-sa121:55:003
1164736993225,6cyclictest1197914-21awk20:10:003
116474299310,29cyclictest1219435-21turbostat.cron20:50:015
116473299310,30cyclictest1309119-21cron23:35:002
116474899300,29cyclictest0-21swapper/721:16:027
116474599300,29cyclictest1339586-21apt-get00:31:016
116474599300,29cyclictest1243947-21sh21:35:016
116474299300,1cyclictest1315270-21apt-get23:46:035
116474099300,29cyclictest1214034-21cron20:40:004
116474099300,29cyclictest0-21swapper/419:16:004
116473699300,29cyclictest1230475-21apt21:10:013
116473699300,29cyclictest0-21swapper/322:20:003
116473299300,29cyclictest0-21swapper/222:10:002
1164727993028,1cyclictest1241265-21idleruntime-cro21:30:011
116472799300,29cyclictest1203768-21apt-get20:21:021
116472299300,29cyclictest1186880-21awk19:50:000
116472299300,29cyclictest1168470-21chrt19:16:000
116472299300,29cyclictest0-21swapper/020:40:000
116474899290,1cyclictest1208661-21idleruntime-cro20:30:007
1164745992927,1cyclictest1276758-21apt-get22:36:006
1164745992927,1cyclictest1274075-21apt-get22:31:066
116474599290,28cyclictest1230965-21apt-get21:10:596
116474599290,1cyclictest1314793-21munin-run23:45:006
1164742992927,1cyclictest1309117-21sh23:35:005
116474299290,28cyclictest1179245-21apt-get19:35:595
116474299290,28cyclictest0-21swapper/523:51:015
116474299290,28cyclictest0-21swapper/522:51:005
1164736992927,2cyclictest0-21swapper/323:01:003
1164736992927,1cyclictest1296143-21apt-get23:11:023
1164736992927,1cyclictest0-21swapper/323:35:003
1164736992927,1cyclictest0-21swapper/320:50:013
116473699290,28cyclictest0-21swapper/323:40:593
116473699290,1cyclictest1341789-21dump-pmu-power00:35:003
1164732992927,1cyclictest0-21swapper/222:45:012
1164732992927,1cyclictest0-21swapper/222:11:012
1164732992927,1cyclictest0-21swapper/221:10:592
1164732992927,1cyclictest0-21swapper/220:10:592
116473299290,28cyclictest0-21swapper/220:51:002
116473299290,28cyclictest0-21swapper/220:46:032
116473299290,28cyclictest0-21swapper/219:31:002
116473299290,28cyclictest0-21swapper/200:26:012
1164727992927,1cyclictest1309698-21latency_hist23:35:011
1164727992927,1cyclictest1244438-21apt-get21:36:011
116472799290,28cyclictest0-21swapper/100:11:031
116472799290,28cyclictest0-21swapper/100:11:031
1164722992927,1cyclictest0-21swapper/021:56:010
1164722992927,1cyclictest0-21swapper/020:30:000
116472299290,28cyclictest0-21swapper/019:21:010
1164748992827,1cyclictest0-21swapper/722:45:597
1164748992826,1cyclictest1323384-21apt-get00:01:007
1164748992826,1cyclictest0-21swapper/722:41:017
116474899280,27cyclictest0-21swapper/723:56:027
116474899280,0cyclictest0-21swapper/720:46:037
116474899280,0cyclictest0-21swapper/700:20:597
116474299280,0cyclictest0-21swapper/520:26:005
1164740992827,1cyclictest1287797-21apt-get22:56:024
1164740992826,1cyclictest1278965-21latency_hist22:40:004
116474099280,0cyclictest0-21swapper/423:26:034
1164736992826,1cyclictest0-21swapper/321:01:003
1164736992824,4cyclictest0-21swapper/322:31:063
1164736992824,3cyclictest430088-21rs:main3
1164732992828,0cyclictest0-21swapper/223:36:002
1164732992827,1cyclictest0-21swapper/219:35:592
1164732992826,2cyclictest1322962-21sed00:00:002
1164732992826,1cyclictest1201054-21apt-get20:15:592
1164732992825,2cyclictest1227782-21idleruntime-cro21:05:012
116473299280,0cyclictest0-21swapper/223:11:022
1164727992826,1cyclictest1334159-21apt-get00:20:591
116472799280,28cyclictest1167334-21awk19:15:001
1164722992827,1cyclictest0-21swapper/021:21:030
1164722992826,1cyclictest0-21swapper/023:26:030
1164748992727,0cyclictest0-21swapper/720:36:007
1164748992727,0cyclictest0-21swapper/720:21:037
1164748992725,1cyclictest0-21swapper/720:10:597
1164742992727,0cyclictest0-21swapper/519:46:025
1164742992726,1cyclictest0-21swapper/523:11:025
1164742992726,0cyclictest0-21swapper/522:10:005
116474299270,27cyclictest0-21swapper/521:20:015
116474299270,0cyclictest0-21swapper/520:40:015
1164740992727,0cyclictest0-21swapper/400:36:034
1164740992725,1cyclictest1208663-21turbostat.cron20:30:004
1164736992727,0cyclictest0-21swapper/321:10:593
1164736992725,1cyclictest1187594-21apt-get19:51:003
1164732992726,1cyclictest0-21swapper/219:41:002
1164732992726,1cyclictest0-21swapper/219:41:002
1164727992727,0cyclictest0-21swapper/122:05:001
1164727992725,1cyclictest0-21swapper/120:05:001
1164722992726,1cyclictest0-21swapper/019:56:040
1164722992725,1cyclictest0-21swapper/000:05:590
116472299270,0cyclictest0-21swapper/023:21:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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