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2026-05-14 - 04:04
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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 Thu May 14, 2026 00:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20546972226166,19sleep20-21swapper/219:07:092
20546732226166,19sleep50-21swapper/519:06:485
20546132223161,19sleep40-21swapper/419:05:584
20545892216186,20sleep00-21swapper/019:05:380
20548442212184,18sleep10-21swapper/119:09:171
20546982212183,19sleep30-21swapper/319:07:103
20546512211183,18sleep60-21swapper/619:06:316
20547492209179,19sleep70-21swapper/719:07:537
2055115993328,4cyclictest2217333-21cron00:00:015
205511099330,32cyclictest2083534-21cron20:00:023
205512199320,31cyclictest2142135-21cron21:45:017
205511599320,30cyclictest2092415-21apt-get20:15:155
205511799310,30cyclictest2158856-21cron22:15:006
205511799310,30cyclictest2158856-21cron22:15:006
2055110993128,2cyclictest2128164-21cron21:20:013
2055104993126,4cyclictest2181402-21cut22:55:021
2055121993028,1cyclictest1-21systemd22:50:007
2055121993027,3cyclictest0-21swapper/723:00:017
2055117993027,2cyclictest2156114-21awk22:10:016
2055117993027,2cyclictest2156114-21awk22:10:016
205511799300,29cyclictest791rcuc/619:15:006
205511599300,30cyclictest0-21swapper/519:25:025
205511299300,29cyclictest2238013-21apt-get00:35:124
205511299300,29cyclictest2089162-21cron20:10:014
205511299300,29cyclictest2080744-21cron19:55:024
2055110993028,1cyclictest2086769-21apt-get20:05:133
2055110993028,1cyclictest0-21swapper/322:20:133
205511099300,29cyclictest2178777-21apt-get22:50:123
205511099300,29cyclictest0-21swapper/321:35:123
205511099300,1cyclictest0-21swapper/300:10:123
205510699300,29cyclictest2125823-21apt-get21:15:142
205510699300,29cyclictest0-21swapper/220:15:142
2055104993027,2cyclictest374-21systemd-journal23:30:021
205510499300,29cyclictest0-21swapper/122:35:011
205510499300,28cyclictest0-21swapper/120:25:001
205510399300,1cyclictest2201078-21apt-get23:30:110
2055121992928,1cyclictest2109136-21apt-get20:45:157
2055121992928,1cyclictest0-21swapper/721:30:007
2055121992928,1cyclictest0-21swapper/720:10:137
205512199290,29cyclictest2223344-21apt-get00:10:127
205512199290,28cyclictest0-21swapper/721:50:137
2055117992927,1cyclictest290-21plymouthd00:05:016
205511799290,28cyclictest2192727-21apt-get23:15:146
205511799290,28cyclictest2150958-21apt-get22:00:136
205511799290,28cyclictest0-21swapper/623:10:136
205511799290,28cyclictest0-21swapper/620:50:126
205511799290,28cyclictest0-21swapper/620:25:136
205511799290,28cyclictest0-21swapper/619:50:126
205511799290,28cyclictest0-21swapper/600:35:136
205511799290,28cyclictest0-21swapper/600:15:126
2055115992927,1cyclictest374-21systemd-journal21:05:015
205511599290,1cyclictest0-21swapper/519:25:135
205511599290,0cyclictest0-21swapper/520:00:025
2055112992928,1cyclictest0-21swapper/400:10:014
205511299290,29cyclictest2153359-21922:05:014
205511299290,28cyclictest2122639-21systemd-run21:10:014
205511299290,28cyclictest0-21swapper/420:00:144
205511299290,28cyclictest0-21swapper/400:26:294
205511299290,28cyclictest0-21swapper/400:20:134
205511299290,1cyclictest0-21swapper/421:20:014
2055110992927,1cyclictest0-21swapper/321:45:123
205511099290,28cyclictest0-21swapper/323:55:123
205511099290,28cyclictest0-21swapper/323:00:133
205511099290,28cyclictest0-21swapper/322:15:133
205511099290,28cyclictest0-21swapper/321:40:133
205511099290,28cyclictest0-21swapper/319:20:133
205510699290,29cyclictest0-21swapper/222:15:132
205510699290,28cyclictest2097994-21apt-get20:25:132
205510699290,28cyclictest0-21swapper/222:55:142
205510699290,28cyclictest0-21swapper/222:50:122
205510699290,28cyclictest0-21swapper/220:40:132
205510699290,28cyclictest0-21swapper/219:25:132
205510699290,1cyclictest0-21swapper/220:00:022
2055104992927,1cyclictest2061329-21systemd-run19:20:021
2055104992927,1cyclictest0-21swapper/122:15:141
2055104992927,1cyclictest0-21swapper/121:20:131
205510499290,29cyclictest1-21systemd23:45:021
205510499290,28cyclictest0-21swapper/122:55:141
205510499290,28cyclictest0-21swapper/122:40:131
205510499290,28cyclictest0-21swapper/122:20:131
205510499290,28cyclictest0-21swapper/119:25:141
205510499290,28cyclictest0-21swapper/100:00:011
2055103992927,2cyclictest1-21systemd19:15:020
2055103992927,1cyclictest2131436-21apt-get21:25:110
2055103992927,1cyclictest0-21swapper/020:20:010
2055103992927,0cyclictest0-21swapper/022:55:040
205510399290,28cyclictest0-21swapper/023:55:130
205510399290,28cyclictest0-21swapper/022:35:140
205510399290,28cyclictest0-21swapper/022:15:140
205510399290,28cyclictest0-21swapper/021:20:140
205510399290,28cyclictest0-21swapper/021:05:120
205510399290,28cyclictest0-21swapper/020:20:130
205510399290,28cyclictest0-21swapper/019:25:130
205510399290,28cyclictest0-21swapper/019:20:020
2055121992828,0cyclictest0-21swapper/723:15:147
2055121992827,1cyclictest1043-21systemctl00:00:007
2055121992827,1cyclictest0-21swapper/722:00:137
2055121992826,1cyclictest2105884-21cron20:40:017
205512199280,28cyclictest0-21swapper/721:55:037
205512199280,28cyclictest0-21swapper/719:25:147
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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