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2026-05-16 - 08:00
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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 Sat May 16, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2556762228168,18sleep70-21swapper/719:09:257
2554422226162,19sleep40-21swapper/419:06:004
2554742223162,19sleep00-21swapper/019:06:280
2555982221189,21sleep30-21swapper/319:08:163
2556442220192,18sleep20-21swapper/219:08:542
2556012220189,20sleep60-21swapper/619:08:196
2554342211181,20sleep50-21swapper/519:05:535
2555402207178,20sleep10-21swapper/119:07:251
25594199350,34cyclictest0-21swapper/619:15:016
25594199340,33cyclictest415412-21cron23:55:006
25594199340,33cyclictest0-21swapper/623:50:016
25594199340,33cyclictest0-21swapper/623:30:016
25594199340,33cyclictest0-21swapper/623:30:016
25594199340,31cyclictest0-21swapper/600:25:136
25594199330,32cyclictest0-21swapper/623:40:126
25594199330,32cyclictest0-21swapper/619:30:006
25594199330,32cyclictest0-21swapper/619:15:136
25592799330,32cyclictest287171-21cron20:05:010
255941993228,4cyclictest0-21swapper/622:50:016
25594199320,31cyclictest0-21swapper/600:03:596
25593199320,31cyclictest303941-21awk20:35:002
255941993128,3cyclictest0-21swapper/623:55:146
255940993126,4cyclictest295636-21latency_hist20:20:015
25593799310,30cyclictest312697-21apt-get20:50:144
25592799310,31cyclictest295637-21latency_hist20:20:020
25594499300,1cyclictest387981-21apt-get23:05:127
255941993029,1cyclictest290-21plymouthd20:10:006
255941993026,3cyclictest0-21swapper/623:35:016
255941993022,4cyclictest0-21swapper/600:08:506
25594199300,29cyclictest0-21swapper/620:35:016
25594199300,0cyclictest0-21swapper/619:30:126
25594199300,0cyclictest0-21swapper/619:20:136
25594199300,0cyclictest0-21swapper/600:10:126
25594099300,29cyclictest415856-21apt-get23:55:135
25593799300,29cyclictest312259-21cron20:50:014
25593599300,2cyclictest318271-21apt-get21:00:133
25593599300,29cyclictest0-21swapper/322:30:133
25593599300,29cyclictest0-21swapper/319:55:133
25593599300,1cyclictest290386-21apt-get20:10:123
25593199300,29cyclictest856-21dbus-daemon21:50:012
25593199300,29cyclictest0-21swapper/222:55:112
255929993026,3cyclictest304349-21http20:35:121
25592999300,29cyclictest1-21systemd23:15:001
255927993028,2cyclictest368091-21922:30:000
255927993028,1cyclictest398678-21cron23:25:010
255927993028,1cyclictest398678-21cron23:25:010
3463312290,0sleep3346335-21tr21:50:133
255944992928,1cyclictest0-21swapper/723:15:117
255944992927,1cyclictest0-21swapper/721:00:137
25594499290,28cyclictest438881-21apt-get00:35:147
25594499290,28cyclictest340190-21appstreamcli21:40:037
25594499290,28cyclictest0-21swapper/723:10:127
25594499290,28cyclictest0-21swapper/723:00:137
25594499290,28cyclictest0-21swapper/720:35:127
25594499290,28cyclictest0-21swapper/719:40:127
25594499290,28cyclictest0-21swapper/719:40:127
25594499290,28cyclictest0-21swapper/719:10:137
25594499290,28cyclictest0-21swapper/700:25:137
25594499290,28cyclictest0-21swapper/700:10:127
255941992927,2cyclictest0-21swapper/623:35:126
255941992927,2cyclictest0-21swapper/619:35:116
255941992927,1cyclictest292726-21cron20:15:006
25594199290,28cyclictest0-21swapper/622:20:136
25594199290,28cyclictest0-21swapper/621:30:126
25594199290,28cyclictest0-21swapper/621:25:126
25594199290,28cyclictest0-21swapper/621:20:146
255940992924,4cyclictest287172-21cron20:05:015
25594099290,28cyclictest0-21swapper/520:20:135
25594099290,28cyclictest0-21swapper/519:15:145
255937992928,1cyclictest315473-21apt-get20:55:124
25593799290,28cyclictest0-21swapper/423:30:134
25593799290,28cyclictest0-21swapper/422:20:134
25593799290,28cyclictest0-21swapper/420:40:124
25593799290,28cyclictest0-21swapper/420:00:134
25593799290,28cyclictest0-21swapper/419:55:134
25593799290,1cyclictest270889-21apt-get19:35:114
25593799290,1cyclictest1-21systemd19:45:014
25593799290,1cyclictest1-21systemd19:45:004
25593799290,1cyclictest0-21swapper/420:05:134
255935992927,1cyclictest328955-21cron21:20:013
255935992926,3cyclictest1-21systemd21:10:023
25593599290,29cyclictest1-21systemd00:40:023
25593599290,28cyclictest0-21swapper/323:50:133
25593599290,28cyclictest0-21swapper/320:50:143
25593599290,1cyclictest362433-21cron22:20:013
25593199290,28cyclictest407085-21923:40:002
25593199290,28cyclictest379628-21apt-get22:50:122
25593199290,28cyclictest376854-21apt-get22:45:142
25593199290,28cyclictest270503-21systemd-run19:35:012
25593199290,28cyclictest1-21systemd20:40:012
25593199290,28cyclictest0-21swapper/223:55:142
25593199290,28cyclictest0-21swapper/222:30:132
25593199290,28cyclictest0-21swapper/220:40:132
25593199290,28cyclictest0-21swapper/220:25:122
25593199290,28cyclictest0-21swapper/219:35:112
25593199290,28cyclictest0-21swapper/219:25:132
25593199290,1cyclictest387543-21cron23:05:002
25593199290,1cyclictest340190-21appstreamcli21:40:032
255929992928,1cyclictest351ktimers/122:04:511
255929992927,1cyclictest0-21swapper/100:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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