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2026-04-26 - 22:22
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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 Sun Apr 26, 2026 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22198702226166,19sleep60-21swapper/607:06:406
22198982218189,19sleep50-21swapper/507:07:045
22199942217186,20sleep00-21swapper/007:08:260
22198572215187,19sleep20-21swapper/207:06:282
22200952214185,19sleep30-21swapper/307:09:513
22200582214185,19sleep40-21swapper/407:09:204
22198822214187,18sleep70-21swapper/707:06:497
22200552213184,20sleep10-21swapper/107:09:171
222034999360,1cyclictest0-21swapper/311:20:013
222034099335,28cyclictest0-21swapper/009:05:010
222036099320,31cyclictest2324455-21apt-get10:15:147
222034399320,31cyclictest2240472-21cron07:45:011
2220360993126,4cyclictest2374242-21cron11:45:027
222035699310,28cyclictest2349603-21apt-get11:00:126
222035199310,29cyclictest2301709-21cron09:35:014
2220349993126,4cyclictest2259926-21cron08:20:013
2220343993126,4cyclictest2321640-21apt-get10:10:131
2220343993126,4cyclictest2321640-21apt-get10:10:131
222036099300,29cyclictest0-21swapper/710:10:137
222036099300,29cyclictest0-21swapper/710:10:137
222036099300,29cyclictest0-21swapper/709:30:127
222036099300,29cyclictest0-21swapper/709:05:127
222036099300,1cyclictest809-21dbus-daemon11:30:027
2220356993027,3cyclictest2360786-21apt-get11:20:126
2220356993027,3cyclictest0-21swapper/609:55:116
2220356993027,2cyclictest381-21systemd-journal09:45:016
2220354993027,2cyclictest381-21systemd-journal08:20:025
2220354993026,3cyclictest0-21swapper/507:40:145
222035499300,29cyclictest0-21swapper/509:35:135
222035499300,29cyclictest0-21swapper/508:20:135
2220351993027,2cyclictest2346381-21munin-run10:55:014
222035199300,29cyclictest2349217-21911:00:014
2220349993027,3cyclictest1-21systemd12:25:013
222034999300,29cyclictest290-21plymouthd07:50:023
222034999300,29cyclictest2374694-21apt-get11:45:123
222034599300,29cyclictest2262718-21cron08:25:022
2220340993026,3cyclictest2338191-21latency_hist10:40:020
2220360992927,1cyclictest2388604-21apt-get12:10:137
2220360992927,1cyclictest2346406-21idleruntime-cro10:55:017
2220360992927,1cyclictest1-21systemd11:35:027
222036099290,28cyclictest2352416-21apt-get11:05:127
222036099290,28cyclictest2307732-21apt-get09:45:137
222036099290,28cyclictest0-21swapper/711:35:147
222036099290,28cyclictest0-21swapper/710:55:127
222036099290,28cyclictest0-21swapper/708:05:027
222036099290,28cyclictest0-21swapper/707:10:127
222036099290,1cyclictest1-21systemd07:25:017
2220356992928,1cyclictest2338463-21apt-get10:40:116
2220356992928,0cyclictest0-21swapper/608:40:136
2220356992926,0cyclictest0-21swapper/611:00:016
222035699290,28cyclictest2335632-21apt-get10:35:136
222035699290,28cyclictest0-21swapper/611:55:136
222035699290,28cyclictest0-21swapper/608:20:136
222035499290,28cyclictest290-21plymouthd08:25:135
222035499290,28cyclictest0-21swapper/511:40:125
222035499290,28cyclictest0-21swapper/511:35:125
222035499290,1cyclictest2310506-21apt-get09:50:135
2220351992927,1cyclictest2396955-21apt-get12:25:134
2220351992927,1cyclictest2352023-21appstreamcli11:05:034
2220351992927,1cyclictest2327253-21apt-get10:20:114
2220351992927,1cyclictest2327253-21apt-get10:20:114
2220351992927,1cyclictest0-21swapper/411:35:134
2220351992927,1cyclictest0-21swapper/407:45:124
2220351992926,2cyclictest381-21systemd-journal11:45:014
222035199290,28cyclictest0-21swapper/412:10:024
222035199290,28cyclictest0-21swapper/410:10:134
222035199290,28cyclictest0-21swapper/410:10:134
222035199290,28cyclictest0-21swapper/409:05:124
222035199290,28cyclictest0-21swapper/408:55:134
222035199290,1cyclictest2355197-21taskset11:10:124
222035199290,1cyclictest0-21swapper/411:50:024
222035199290,1cyclictest0-21swapper/411:30:024
2220349992927,1cyclictest0-21swapper/311:00:123
2220349992927,1cyclictest0-21swapper/310:25:023
2220349992927,1cyclictest0-21swapper/310:25:023
2220349992927,1cyclictest0-21swapper/309:00:113
222034999290,28cyclictest2307732-21apt-get09:45:143
222034999290,28cyclictest0-21swapper/307:50:133
222034999290,1cyclictest0-21swapper/311:55:133
222034999290,0cyclictest0-21swapper/307:40:143
2220345992927,1cyclictest0-21swapper/210:40:112
222034599290,29cyclictest0-21swapper/209:45:012
222034599290,28cyclictest0-21swapper/212:30:132
222034599290,28cyclictest0-21swapper/211:25:122
222034599290,28cyclictest0-21swapper/211:10:122
222034599290,28cyclictest0-21swapper/209:50:132
222034599290,28cyclictest0-21swapper/209:10:132
222034599290,28cyclictest0-21swapper/208:25:122
222034599290,28cyclictest0-21swapper/207:45:122
222034599290,1cyclictest2338070-21appstreamcli10:40:022
222034599290,1cyclictest0-21swapper/211:05:012
2220343992928,1cyclictest0-21swapper/107:40:021
2220343992927,1cyclictest0-21swapper/110:45:011
222034399290,28cyclictest2277078-21apt-get08:50:151
222034399290,28cyclictest2229751-21apt-get07:25:141
222034399290,1cyclictest2254378-21sh08:10:021
222034399290,1cyclictest0-21swapper/110:30:131
222034399290,1cyclictest0-21swapper/110:20:001
2220340992927,1cyclictest2265947-21apt-get08:30:130
222034099290,28cyclictest2254816-21apt-get08:10:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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