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2026-05-07 - 07:32
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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 07, 2026 00:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40715592231168,19sleep40-21swapper/419:07:474
40715132225166,48sleep30-21swapper/319:07:063
40714642218188,20sleep10-21swapper/119:06:231
40715822214184,20sleep70-21swapper/719:08:057
40715572213185,18sleep20-21swapper/219:07:452
40715072212184,18sleep60-21swapper/619:07:016
40714122212152,18sleep50-21swapper/519:05:395
40716672206177,20sleep00-21swapper/019:09:190
414340821410,0sleep60-21swapper/621:15:186
407193899401,38cyclictest0-21swapper/519:40:155
4071946993432,1cyclictest17850irq/4-ttyS022:05:017
4071938993430,3cyclictest34746-21sh23:50:015
407192799340,1cyclictest0-21swapper/120:35:151
407192799340,1cyclictest0-21swapper/120:35:021
407192799330,1cyclictest0-21swapper/121:30:131
4071925993328,4cyclictest4175725-21cron22:15:010
407194699322,29cyclictest17850irq/4-ttyS022:35:017
407194299321,30cyclictest856-21dbus-daemon21:00:006
407193399320,31cyclictest1-21systemd20:10:023
407192799320,31cyclictest0-21swapper/123:05:151
407192799320,1cyclictest0-21swapper/122:50:151
4071946993128,2cyclictest4184079-21cron22:30:017
407194299310,30cyclictest4119906-21apt-get20:35:056
4071927993128,3cyclictest0-21swapper/120:40:131
407192599310,30cyclictest4094826-21cron19:50:000
4071946993028,1cyclictest0-21swapper/723:50:027
4071946993027,2cyclictest4105967-21latency_hist20:10:027
407194699300,29cyclictest1-21systemd19:30:017
407194699300,29cyclictest0-21swapper/723:40:157
407194699300,29cyclictest0-21swapper/719:40:157
407193899300,29cyclictest374-21systemd-journal22:25:015
407193699300,2cyclictest4139905-21apt-get21:10:144
407193699300,29cyclictest63420-21sh00:40:014
407193699300,29cyclictest374-21systemd-journal00:25:024
4071933993026,3cyclictest24039-21apt-get23:30:163
407193399300,30cyclictest4086433-21cron19:35:003
407193399300,29cyclictest0-21swapper/323:45:023
407193399300,29cyclictest0-21swapper/320:35:153
4071931993026,3cyclictest54345-21cron00:25:022
407193199300,29cyclictest1-21systemd20:55:012
4071927993026,3cyclictest0-21swapper/121:35:151
407192599300,29cyclictest0-21swapper/019:30:010
4071946992928,1cyclictest290-21plymouthd20:45:027
407194699290,28cyclictest0-21swapper/723:50:147
407194699290,28cyclictest0-21swapper/722:50:147
407194699290,28cyclictest0-21swapper/722:35:147
407194699290,28cyclictest0-21swapper/722:05:147
407194699290,28cyclictest0-21swapper/719:30:157
407194699290,28cyclictest0-21swapper/700:30:157
407194699290,28cyclictest0-21swapper/700:15:147
407194299290,28cyclictest4190095-21apt-get22:40:146
407194299290,28cyclictest4190095-21apt-get22:40:146
407194299290,28cyclictest4098054-21apt-get19:55:146
407194299290,28cyclictest0-21swapper/621:05:156
407194299290,1cyclictest4112002-21apt-get20:20:156
4071938992928,1cyclictest15644-21apt-get23:15:165
407193899290,28cyclictest4095265-21apt-get19:50:135
407193899290,28cyclictest1725-21apt-get22:50:135
407193899290,28cyclictest0-21swapper/522:45:145
407193899290,28cyclictest0-21swapper/522:45:145
407193899290,28cyclictest0-21swapper/520:25:155
407193899290,28cyclictest0-21swapper/519:30:155
407193899290,28cyclictest0-21swapper/500:00:145
407193899290,1cyclictest4089318-21appstreamcli19:40:025
4071936992928,1cyclictest1134-21gmain21:35:014
4071936992927,1cyclictest0-21swapper/423:10:014
4071936992927,1cyclictest0-21swapper/400:25:144
4071936992924,4cyclictest1-21systemd22:40:014
407193699290,28cyclictest0-21swapper/423:25:164
407193699290,28cyclictest0-21swapper/400:05:144
407193699290,1cyclictest1-21systemd20:45:024
407193699290,1cyclictest0-21swapper/422:00:164
4071933992924,4cyclictest4142462-21latency_hist21:15:013
407193399290,28cyclictest4184521-21apt-get22:30:143
407193399290,28cyclictest0-21swapper/323:00:153
407193399290,28cyclictest0-21swapper/321:40:143
407193399290,1cyclictest4117560-21apt-get20:30:143
407193399290,1cyclictest0-21swapper/319:40:013
4071931992927,1cyclictest0-21swapper/220:55:032
4071931992926,2cyclictest63421-21sh00:40:012
407193199290,28cyclictest0-21swapper/223:35:142
407193199290,28cyclictest0-21swapper/223:15:142
407193199290,28cyclictest0-21swapper/222:55:012
407193199290,28cyclictest0-21swapper/221:55:162
407193199290,28cyclictest0-21swapper/221:15:032
407193199290,28cyclictest0-21swapper/220:20:152
407193199290,28cyclictest0-21swapper/200:15:152
4071927992928,1cyclictest290-21plymouthd00:35:001
4071927992926,3cyclictest0-21swapper/123:05:011
407192799290,28cyclictest0-21swapper/123:45:141
407192799290,28cyclictest0-21swapper/122:30:141
407192799290,28cyclictest0-21swapper/120:00:141
4071925992928,1cyclictest4134341-21apt-get21:00:160
4071925992928,1cyclictest0-21swapper/019:40:150
4071925992927,1cyclictest4167839-21apt-get22:00:160
4071925992927,1cyclictest0-21swapper/022:30:010
407192599290,28cyclictest0-21swapper/023:50:150
407192599290,28cyclictest0-21swapper/023:40:150
407192599290,28cyclictest0-21swapper/022:05:130
407192599290,28cyclictest0-21swapper/020:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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