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2026-06-24 - 05:13
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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 Wed Jun 24, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2866262242181,20sleep20-21swapper/219:07:102
2865862228167,19sleep70-21swapper/719:06:347
2867572227166,19sleep30-21swapper/319:09:043
2865072224166,47sleep50-21swapper/519:05:285
2866682221162,48sleep60-21swapper/619:07:466
2868012205175,20sleep00-21swapper/019:09:410
2866462204177,18sleep40-21swapper/419:07:284
2867932203175,19sleep10-21swapper/119:09:341
28703099350,34cyclictest1-21systemd00:00:013
28703599330,32cyclictest452424-21latency_hist00:05:025
28704199320,31cyclictest427794-21wc23:20:047
28704199320,31cyclictest427794-21wc23:20:047
287036993231,1cyclictest0-21swapper/623:40:016
28703699320,31cyclictest321042-21cron20:10:016
287032993227,4cyclictest296435-21http19:25:054
287026993231,1cyclictest0-21swapper/223:40:012
28703699310,2cyclictest399154-21cron22:30:016
28703299310,30cyclictest382896-21apt-get22:00:044
287030993126,4cyclictest298780-21cron19:30:013
28703099310,29cyclictest1-21systemd23:35:013
28703099310,1cyclictest211rcu_preempt21:20:023
28702499310,3cyclictest1-21systemd23:10:011
287041993028,1cyclictest469919-21latency_hist00:35:027
287041993028,1cyclictest464473-21apt-get00:25:037
28704199300,1cyclictest394025-21apt-get22:20:047
28703699300,29cyclictest340631-21920:45:016
28703699300,29cyclictest0-21swapper/622:35:036
287035993028,1cyclictest0-21swapper/523:15:035
287035993028,1cyclictest0-21swapper/523:15:035
287030993028,1cyclictest0-21swapper/321:40:033
287030993028,1cyclictest0-21swapper/320:05:033
28703099300,29cyclictest290-21plymouthd21:40:013
28703099300,29cyclictest0-21swapper/319:35:013
28702699300,29cyclictest315916-21apt-get20:00:042
28702699300,29cyclictest0-21swapper/220:10:012
28702699300,1cyclictest321470-21apt-get20:10:042
287024993029,1cyclictest0-21swapper/121:25:051
287021993029,1cyclictest362804-21kworker/0:0+events22:55:040
287041992928,1cyclictest377317-21apt-get21:50:037
287041992928,1cyclictest0-21swapper/723:00:037
287041992927,1cyclictest0-21swapper/721:00:037
287041992927,1cyclictest0-21swapper/720:05:027
287041992927,1cyclictest0-21swapper/719:45:037
287041992927,1cyclictest0-21swapper/719:45:037
28704199290,28cyclictest0-21swapper/700:05:077
28704199290,1cyclictest0-21swapper/723:15:047
28704199290,1cyclictest0-21swapper/723:15:047
287036992927,1cyclictest432779-21apt-get23:30:026
28703699290,29cyclictest0-21swapper/621:10:056
28703699290,28cyclictest0-21swapper/620:00:046
28703699290,1cyclictest0-21swapper/622:20:056
28703699290,1cyclictest0-21swapper/620:10:046
287035992927,1cyclictest360544-21apt-get21:20:045
287035992925,3cyclictest457717-21unix_chkpwd00:15:015
28703599290,28cyclictest0-21swapper/523:40:035
28703599290,28cyclictest0-21swapper/521:55:075
28703599290,28cyclictest0-21swapper/521:15:055
28703599290,28cyclictest0-21swapper/519:50:035
28703599290,28cyclictest0-21swapper/519:50:035
28703599290,1cyclictest0-21swapper/520:05:015
287032992927,1cyclictest0-21swapper/421:20:024
28703299290,28cyclictest376902-21munin-run21:50:014
28703299290,28cyclictest0-21swapper/423:50:034
28703299290,28cyclictest0-21swapper/423:00:034
28703299290,28cyclictest0-21swapper/422:30:014
28703299290,28cyclictest0-21swapper/421:25:024
28703299290,28cyclictest0-21swapper/420:40:044
28703299290,28cyclictest0-21swapper/420:15:044
28703299290,28cyclictest0-21swapper/400:20:044
28703299290,1cyclictest371759-21apt-get21:40:034
28703299290,1cyclictest335020-21munin-run20:35:014
287030992928,1cyclictest365708-21cron21:30:013
287030992927,1cyclictest421471-21true23:10:013
287030992927,1cyclictest380098-21apt-get21:55:063
287030992927,1cyclictest0-21swapper/321:45:053
28703099290,28cyclictest0-21swapper/323:10:043
28703099290,28cyclictest0-21swapper/323:10:033
28703099290,28cyclictest0-21swapper/322:55:043
28703099290,28cyclictest0-21swapper/321:20:043
28703099290,28cyclictest0-21swapper/320:40:043
28703099290,28cyclictest0-21swapper/320:20:053
28703099290,28cyclictest0-21swapper/319:40:023
28703099290,28cyclictest0-21swapper/300:15:033
28703099290,1cyclictest445754-21python323:50:123
287026992928,1cyclictest0-21swapper/200:20:042
287026992927,1cyclictest0-21swapper/223:30:022
287026992927,1cyclictest0-21swapper/219:55:032
287026992926,2cyclictest360548-21apt-get21:20:042
28702699290,29cyclictest0-21swapper/220:45:012
28702699290,28cyclictest0-21swapper/222:35:032
28702699290,28cyclictest0-21swapper/220:15:032
28702699290,28cyclictest0-21swapper/200:30:042
28702699290,1cyclictest399151-21cron22:30:012
28702699290,0cyclictest0-21swapper/221:50:032
287024992928,1cyclictest371342-21921:40:011
287024992928,1cyclictest0-21swapper/120:25:031
287024992928,1cyclictest0-21swapper/119:25:011
287024992927,1cyclictest368501-21cron21:35:021
287024992927,1cyclictest1-21systemd21:55:011
28702499290,29cyclictest388033-21munin-run22:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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