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2026-06-16 - 11:15
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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 Tue Jun 16, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7496692235174,49sleep70-21swapper/719:07:597
7495122230170,19sleep20-21swapper/219:05:442
7495322228170,48sleep30-21swapper/319:06:023
7495932225164,19sleep50-21swapper/519:06:525
7496772223171,16sleep60-21swapper/619:08:066
7497362211160,16sleep00-21swapper/019:08:560
7497312205177,18sleep40-21swapper/419:08:524
7496922201174,19sleep10-21swapper/119:08:171
750024993430,3cyclictest834210-21cron21:40:025
750022993430,3cyclictest773203-21tar19:50:014
75001999340,32cyclictest934625-21900:39:363
750030993332,1cyclictest915160-21cron00:05:017
75003099330,32cyclictest1-21systemd22:20:017
75001999330,32cyclictest1-21systemd23:35:013
75001999330,32cyclictest1-21systemd23:20:013
75001799332,30cyclictest773057-21latency_hist19:50:012
75003099320,31cyclictest756633-21apt-get19:20:067
75002899320,31cyclictest862135-21cron22:30:016
75002499320,31cyclictest845383-21cron22:00:015
75001799320,4cyclictest873263-21cron22:50:012
75001199320,31cyclictest0-21swapper/000:39:360
750030993127,3cyclictest279850-21systemd-journal20:10:017
750030993127,3cyclictest279850-21systemd-journal20:10:007
750015993127,3cyclictest842593-21cron21:55:011
750030993029,1cyclictest17850irq/4-ttyS000:39:367
750030993028,1cyclictest0-21swapper/722:30:057
750028993028,1cyclictest931861-21cron00:35:016
750028993028,1cyclictest279850-21systemd-journal20:20:016
75002299300,29cyclictest878842-21cron23:00:014
750019993028,1cyclictest0-21swapper/322:10:013
75001999300,29cyclictest803540-21cron20:45:013
75001999300,1cyclictest0-21swapper/320:55:013
750015993028,1cyclictest107-21kcompactd022:06:291
75001599300,2cyclictest778503-21munin-run20:00:011
75001599300,2cyclictest279850-21systemd-journal20:55:011
75003099290,29cyclictest0-21swapper/720:20:357
75003099290,28cyclictest0-21swapper/723:55:057
75003099290,28cyclictest0-21swapper/723:05:077
75003099290,28cyclictest0-21swapper/721:45:067
75003099290,28cyclictest0-21swapper/700:10:057
750028992928,1cyclictest0-21swapper/622:55:016
750028992927,1cyclictest0-21swapper/621:33:416
75002899290,28cyclictest909950-21apt-get23:55:066
75002899290,28cyclictest857009-21apt-get22:20:056
75002899290,28cyclictest0-21swapper/622:35:066
75002899290,28cyclictest0-21swapper/621:10:026
75002899290,28cyclictest0-21swapper/619:15:056
75002899290,1cyclictest781714-21apt-get20:05:086
75002899290,1cyclictest781714-21apt-get20:05:086
75002899290,1cyclictest0-21swapper/623:35:066
75002499290,29cyclictest759411-21apt-get19:25:065
75002499290,29cyclictest0-21swapper/521:48:125
75002499290,28cyclictest879302-21apt-get23:00:055
75002499290,28cyclictest0-21swapper/523:15:055
75002499290,28cyclictest0-21swapper/523:10:065
75002499290,28cyclictest0-21swapper/519:33:165
75002299290,29cyclictest0-21swapper/422:50:054
75002299290,28cyclictest932294-21apt-get00:35:064
75002299290,28cyclictest0-21swapper/423:55:054
75002299290,28cyclictest0-21swapper/421:50:064
75002299290,28cyclictest0-21swapper/420:55:054
75002299290,0cyclictest0-21swapper/419:50:054
750019992927,1cyclictest0-21swapper/300:21:263
75001999290,28cyclictest107-21kcompactd021:05:443
75001999290,28cyclictest0-21swapper/323:40:043
75001999290,28cyclictest0-21swapper/323:40:043
75001999290,28cyclictest0-21swapper/320:05:083
75001999290,28cyclictest0-21swapper/320:05:083
75001999290,28cyclictest0-21swapper/319:55:013
750017992928,1cyclictest840262-21apt-get21:50:062
750017992927,1cyclictest764968-21apt-get19:35:052
750017992927,1cyclictest0-21swapper/223:10:012
75001799290,28cyclictest890483-21apt-get23:20:052
75001799290,28cyclictest803981-21apt-get20:45:042
75001799290,28cyclictest0-21swapper/219:30:012
75001599290,28cyclictest784487-21apt-get20:10:071
75001599290,28cyclictest0-21swapper/123:43:151
75001599290,28cyclictest0-21swapper/123:43:151
75001599290,28cyclictest0-21swapper/123:10:061
75001599290,28cyclictest0-21swapper/122:40:061
75001599290,28cyclictest0-21swapper/122:35:061
75001599290,28cyclictest0-21swapper/121:55:121
75001599290,28cyclictest0-21swapper/120:45:041
75001599290,28cyclictest0-21swapper/119:50:051
75001599290,28cyclictest0-21swapper/100:30:051
75001599290,28cyclictest0-21swapper/100:20:051
75001599290,1cyclictest803538-21cron20:45:011
750011992928,1cyclictest0-21swapper/023:00:010
750011992927,1cyclictest876053-21munin-run22:55:010
75001199290,28cyclictest0-21swapper/023:40:040
75001199290,28cyclictest0-21swapper/023:40:040
75001199290,28cyclictest0-21swapper/021:40:060
75001199290,28cyclictest0-21swapper/021:35:060
75001199290,28cyclictest0-21swapper/021:10:060
75001199290,28cyclictest0-21swapper/019:30:010
75001199290,28cyclictest0-21swapper/019:20:040
75001199290,1cyclictest870529-21922:45:010
75001199290,1cyclictest752690-21latency_hist19:15:010
750030992827,1cyclictest798401-21apt-get20:35:077
750030992827,1cyclictest0-21swapper/720:30:017
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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