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2026-06-11 - 05:37
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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 Jun 11, 2026 00:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18739672238169,20sleep50-21swapper/519:05:295
18742512224165,46sleep70-21swapper/719:09:337
18740282220162,47sleep60-21swapper/619:06:186
18740802217187,20sleep20-21swapper/219:07:032
18740322215187,19sleep10-21swapper/119:06:211
18742672210181,19sleep30-21swapper/319:09:453
18740732209180,19sleep40-21swapper/419:06:574
18742642208178,20sleep00-21swapper/019:09:410
187451399353,4cyclictest1-21systemd22:15:007
1874497993432,1cyclictest2020147-21munin-run23:30:001
187451399330,33cyclictest1-21systemd00:20:017
187451399330,29cyclictest2008948-21923:10:017
187451399330,1cyclictest0-21swapper/700:20:067
1874501993327,6cyclictest1-21systemd19:35:003
187449399330,5cyclictest1956029-21systemd-run21:35:010
187450399322,29cyclictest611rcuc/423:25:014
187449899320,31cyclictest1961586-21basename21:45:012
187451399310,30cyclictest2042494-21sh00:10:027
187450999310,29cyclictest856-21dbus-daemon23:10:016
1874503993127,3cyclictest107-21kcompactd000:23:454
187450399311,29cyclictest611rcuc/423:20:014
1874501993126,4cyclictest279850-21systemd-journal23:40:013
187450199310,30cyclictest1947617-21cron21:20:013
187449899310,3cyclictest1877161-21cron19:15:012
187449799310,3cyclictest1950418-21cron21:25:011
187449799310,30cyclictest1978294-21922:15:011
187451399300,30cyclictest0-21swapper/700:35:017
187450599300,30cyclictest1-21systemd23:35:015
187450599300,29cyclictest279850-21systemd-journal22:30:015
187450599300,29cyclictest279850-21systemd-journal22:30:015
187450399300,2cyclictest856-21dbus-daemon22:15:014
1874501993027,2cyclictest279850-21systemd-journal21:25:013
1874513992926,2cyclictest0-21swapper/700:25:047
1874513992925,1cyclictest0-21swapper/700:35:077
187451399290,28cyclictest107-21kcompactd000:14:377
187451399290,28cyclictest0-21swapper/721:55:067
187451399290,28cyclictest0-21swapper/719:55:077
187451399290,1cyclictest0-21swapper/720:45:077
1874509992927,1cyclictest2020593-21apt-get23:30:056
187450999290,28cyclictest0-21swapper/623:50:066
187450999290,28cyclictest0-21swapper/623:40:066
187450999290,28cyclictest0-21swapper/622:15:026
187450999290,28cyclictest0-21swapper/621:30:066
187450999290,28cyclictest0-21swapper/621:25:046
187450999290,1cyclictest2017308-21cron23:25:016
187450999290,1cyclictest1914591-21apt-get20:20:066
1874505992927,1cyclictest1961980-21apt-get21:45:065
1874505992924,4cyclictest1883617-21ls19:25:025
187450599290,28cyclictest0-21swapper/523:10:065
187450599290,28cyclictest0-21swapper/519:15:065
187450599290,28cyclictest0-21swapper/500:10:025
187450599290,1cyclictest1-21systemd22:50:015
187450599290,1cyclictest107-21kcompactd020:30:025
1874503992929,0cyclictest0-21swapper/423:10:054
1874503992927,1cyclictest1894621-21cron19:45:014
1874503992927,1cyclictest0-21swapper/422:20:014
187450399290,28cyclictest0-21swapper/423:30:064
187450399290,28cyclictest0-21swapper/422:30:064
187450399290,28cyclictest0-21swapper/421:15:064
187450399290,28cyclictest0-21swapper/420:10:074
187450399290,1cyclictest0-21swapper/400:30:054
187450199290,28cyclictest1911792-21apt-get20:15:063
187450199290,28cyclictest0-21swapper/322:22:063
187450199290,28cyclictest0-21swapper/300:20:323
187450199290,1cyclictest2020336-21latency_hist23:30:023
187450199290,1cyclictest0-21swapper/323:32:403
187450199290,1cyclictest0-21swapper/300:35:023
1874498992928,1cyclictest2023374-21apt-get23:35:062
1874498992928,1cyclictest1922970-21apt-get20:35:052
1874498992927,1cyclictest1883534-21appstreamcli19:25:022
187449899290,29cyclictest1-21systemd21:10:002
187449899290,29cyclictest0-21swapper/223:55:022
187449899290,28cyclictest0-21swapper/223:49:202
187449899290,28cyclictest0-21swapper/222:55:062
187449899290,28cyclictest0-21swapper/220:25:062
187449899290,28cyclictest0-21swapper/200:10:062
187449899290,1cyclictest0-21swapper/200:10:012
1874497992928,1cyclictest1981500-21apt-get22:20:061
1874497992927,1cyclictest290-21plymouthd22:00:061
1874497992927,1cyclictest1939676-21apt-get21:05:081
1874497992927,1cyclictest1-21systemd00:10:021
1874497992927,1cyclictest0-21swapper/123:10:061
1874497992927,1cyclictest0-21swapper/121:10:021
1874497992927,1cyclictest0-21swapper/120:15:021
187449799290,28cyclictest1964376-21921:50:011
187449799290,28cyclictest1908635-21920:10:021
187449799290,28cyclictest0-21swapper/123:32:071
187449799290,28cyclictest0-21swapper/100:38:161
187449799290,28cyclictest0-21swapper/100:25:051
187449799290,28cyclictest0-21swapper/100:10:061
187449799290,1cyclictest2026169-21apt-get23:40:061
187449399290,28cyclictest107-21kcompactd021:10:020
187449399290,28cyclictest0-21swapper/022:40:060
187449399290,28cyclictest0-21swapper/022:25:060
187449399290,28cyclictest0-21swapper/022:25:060
187449399290,28cyclictest0-21swapper/022:00:060
187449399290,28cyclictest0-21swapper/020:20:050
187449399290,1cyclictest2009350-21apt-get23:10:060
187449399290,1cyclictest1878308-21apt-get19:15:070
1874513992827,1cyclictest0-21swapper/723:20:177
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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