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2026-06-20 - 16:01
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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 Jun 20, 2026 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21574642233171,19sleep30-21swapper/307:08:103
21573822228165,20sleep40-21swapper/407:06:584
21573712227166,19sleep20-21swapper/207:06:482
21572812224165,18sleep50-21swapper/507:05:315
21575002215185,20sleep10-21swapper/107:08:401
21574992210182,19sleep00-21swapper/007:08:390
21575442209177,20sleep70-21swapper/707:09:197
21573482205177,18sleep60-21swapper/607:06:286
2157814993633,2cyclictest2197507-21idleruntime-cro08:20:013
215781899343,28cyclictest211rcu_preempt09:10:014
215781499340,4cyclictest1-21systemd07:30:013
215782399330,33cyclictest2270446-21http10:30:045
215782399330,33cyclictest2270446-21http10:30:045
215781499330,3cyclictest2270055-21910:30:013
2157807993329,3cyclictest2166809-21apt-get07:25:010
215782899320,31cyclictest2178468-21http07:45:057
215782399320,31cyclictest0-21swapper/508:50:055
215781299320,4cyclictest2283945-21cron10:55:012
215780999320,31cyclictest1-21systemd12:30:011
215782799310,30cyclictest2264885-21apt-get10:20:056
215782799310,29cyclictest1-21systemd08:25:026
215782799310,29cyclictest0-21swapper/607:25:016
215780999310,3cyclictest2322978-21cron12:05:011
215782899300,2cyclictest2320628-21apt-get12:00:047
215782899300,29cyclictest2278409-21cron10:45:017
215782899300,29cyclictest0-21swapper/709:55:047
2157827993028,1cyclictest1-21systemd10:30:016
215782799300,29cyclictest0-21swapper/608:30:056
2157823993027,3cyclictest0-21swapper/510:35:065
2157823993027,3cyclictest0-21swapper/510:35:065
2157823993027,3cyclictest0-21swapper/510:30:015
215782399300,29cyclictest0-21swapper/509:25:055
215781899300,1cyclictest1-21systemd08:20:014
215781499300,29cyclictest0-21swapper/311:45:023
215781499300,29cyclictest0-21swapper/311:30:053
2157812993029,1cyclictest0-21swapper/208:10:012
2157812993027,2cyclictest2214256-21cron08:50:012
215780999300,29cyclictest2167270-21apt-get07:25:051
215780999300,29cyclictest0-21swapper/111:05:011
2157828992927,2cyclictest2239754-21apt-get09:35:057
2157828992927,1cyclictest2334537-21apt-get12:25:037
215782899290,28cyclictest0-21swapper/710:45:047
215782899290,28cyclictest0-21swapper/710:15:057
215782899290,28cyclictest0-21swapper/710:10:057
215782899290,28cyclictest0-21swapper/708:55:057
215782899290,1cyclictest2298364-21apt-get11:20:047
215782899290,1cyclictest1-21systemd09:55:017
2157827992927,1cyclictest2164023-21munin-run07:20:006
215782799290,28cyclictest2340110-21apt-get12:35:056
215782799290,28cyclictest0-21swapper/611:45:026
215782799290,28cyclictest0-21swapper/611:40:066
215782799290,28cyclictest0-21swapper/611:35:046
215782799290,28cyclictest0-21swapper/611:30:056
215782799290,28cyclictest0-21swapper/610:50:056
215782799290,28cyclictest0-21swapper/609:45:026
215782799290,28cyclictest0-21swapper/607:30:046
215782799290,1cyclictest2203240-21grep08:30:026
215782799290,1cyclictest2197508-21apt08:20:016
215782799290,1cyclictest0-21swapper/610:50:016
215782799290,1cyclictest0-21swapper/610:45:016
2157823992926,3cyclictest1-21systemd08:50:015
215782399290,28cyclictest0-21swapper/509:20:035
215782399290,1cyclictest2228606-21apt-get09:15:055
2157818992928,1cyclictest63-21ksoftirqd/410:45:044
2157818992928,1cyclictest611rcuc/408:55:014
2157818992928,1cyclictest290-21plymouthd08:25:024
2157818992927,1cyclictest0-21swapper/407:55:044
215781899290,28cyclictest0-21swapper/411:55:054
215781899290,28cyclictest0-21swapper/411:40:064
215781899290,28cyclictest0-21swapper/410:35:064
215781899290,28cyclictest0-21swapper/410:35:064
215781899290,28cyclictest0-21swapper/410:15:054
215781899290,28cyclictest0-21swapper/407:20:044
215781899290,28cyclictest0-21swapper/407:15:014
2157814992927,1cyclictest0-21swapper/309:30:063
215781499290,29cyclictest1-21systemd07:25:013
215781499290,29cyclictest0-21swapper/311:35:043
215781499290,29cyclictest0-21swapper/308:25:023
215781499290,28cyclictest2323415-21http12:05:073
215781499290,28cyclictest0-21swapper/312:00:043
215781499290,0cyclictest0-21swapper/310:45:043
215781499290,0cyclictest0-21swapper/310:20:053
2157812992928,1cyclictest2172471-21systemd-run07:35:012
2157812992927,1cyclictest0-21swapper/211:40:012
215781299290,28cyclictest0-21swapper/211:00:052
215781299290,1cyclictest2234183-21apt-get09:25:052
2157809992928,1cyclictest290-21plymouthd12:00:021
2157809992928,1cyclictest0-21swapper/110:35:061
2157809992928,1cyclictest0-21swapper/110:35:061
2157809992928,1cyclictest0-21swapper/110:35:011
2157809992928,1cyclictest0-21swapper/110:35:011
215780999290,29cyclictest290-21plymouthd07:25:011
215780999290,29cyclictest0-21swapper/110:50:011
215780999290,28cyclictest0-21swapper/110:10:051
215780999290,28cyclictest0-21swapper/110:05:061
215780999290,28cyclictest0-21swapper/107:40:061
215780999290,1cyclictest0-21swapper/111:20:021
215780799290,28cyclictest2314661-21awk11:50:010
215780799290,28cyclictest0-21swapper/011:55:050
215780799290,28cyclictest0-21swapper/011:40:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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