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2026-06-30 - 06:35
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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 30, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16965072232172,20sleep20-21swapper/219:08:132
16965072232172,20sleep20-21swapper/219:08:132
16965712231183,38sleep10-21swapper/119:09:091
16965712231183,38sleep10-21swapper/119:09:091
16965492228166,51sleep60-21swapper/619:08:506
16965492228166,51sleep60-21swapper/619:08:506
16963202220174,36sleep30-21swapper/319:05:333
16963202220174,36sleep30-21swapper/319:05:333
16965472213184,19sleep40-21swapper/419:08:484
16965472213184,19sleep40-21swapper/419:08:484
16966222210182,18sleep50-21swapper/519:09:535
16966222210182,18sleep50-21swapper/519:09:535
16964382208179,19sleep70-21swapper/719:07:147
16964382208179,19sleep70-21swapper/719:07:147
16963812201172,19sleep00-21swapper/019:06:260
16963812201172,19sleep00-21swapper/019:06:260
169683399370,35cyclictest1858993-21/usr/sbin/munin00:00:020
169684999350,30cyclictest1778563-21apt-get21:35:026
169685199340,32cyclictest1864703-21basename00:10:017
169684399340,32cyclictest1873823-21unix_chkpwd00:25:014
169684299340,32cyclictest1717045-21unix_chkpwd19:45:013
169683999340,33cyclictest290-21plymouthd21:55:012
169684999330,28cyclictest0-21swapper/621:40:026
169684699330,32cyclictest1795014-21awk22:05:015
169683999330,29cyclictest1767529-21apt-get21:15:032
169683399330,31cyclictest1817560-21cron22:45:010
169684399320,31cyclictest1-21systemd00:05:024
169684299320,4cyclictest1879426-21http00:35:013
1696839993227,5cyclictest290-21plymouthd21:50:012
169683399320,28cyclictest0-21swapper/021:55:020
169683399320,1cyclictest0-21swapper/021:55:010
169685199310,30cyclictest0-21swapper/719:10:027
1696849993127,3cyclictest1772729-21921:25:016
169683399310,3cyclictest1845121-21apt-get23:35:010
169683399310,0cyclictest0-21swapper/021:13:560
169685199300,29cyclictest0-21swapper/720:45:017
169685199300,29cyclictest0-21swapper/700:15:027
169684999300,2cyclictest1850701-21cron23:45:016
169684999300,29cyclictest1882195-21cron00:40:016
169684999300,0cyclictest0-21swapper/622:45:006
169684399300,29cyclictest1831173-21cron23:10:014
169684399300,29cyclictest1825690-21grep23:00:014
169684399300,29cyclictest1750725-21cstates20:45:024
169684399300,29cyclictest0-21swapper/400:15:044
169684299300,30cyclictest1708583-21unix_chkpwd19:30:013
169684299300,29cyclictest279850-21systemd-journal23:15:013
169684299300,29cyclictest1836724-21apt-get23:20:023
169684299300,29cyclictest0-21swapper/321:05:023
1696839993027,3cyclictest1864850-21latency_hist00:10:022
169683999300,30cyclictest279850-21systemd-journal22:45:012
169683999300,29cyclictest0-21swapper/222:50:042
169683799300,29cyclictest1869160-21appstreamcli00:15:021
169683799300,29cyclictest1864679-21munin-run00:10:011
169683799300,29cyclictest0-21swapper/120:45:021
1696833993027,3cyclictest1856872-21cron23:55:010
1696833993027,3cyclictest0-21swapper/021:20:020
1696833993027,2cyclictest1853475-21taskset23:50:010
1696833993026,4cyclictest0-21swapper/021:45:010
169683399300,2cyclictest1714191-21apt-get19:40:040
1696851992927,1cyclictest0-21swapper/723:15:027
1696851992927,1cyclictest0-21swapper/722:00:107
1696851992927,1cyclictest0-21swapper/700:25:027
169685199290,28cyclictest0-21swapper/723:49:197
169685199290,28cyclictest0-21swapper/723:41:477
169685199290,28cyclictest0-21swapper/721:35:027
169685199290,28cyclictest0-21swapper/720:55:027
169685199290,28cyclictest0-21swapper/720:35:017
169685199290,28cyclictest0-21swapper/719:40:027
169685199290,28cyclictest0-21swapper/700:03:497
169685199290,1cyclictest0-21swapper/720:40:017
1696849992928,1cyclictest0-21swapper/620:15:006
169684999290,29cyclictest0-21swapper/621:15:336
169684999290,28cyclictest0-21swapper/622:20:046
169684999290,28cyclictest0-21swapper/621:50:026
169684999290,28cyclictest0-21swapper/621:33:176
169684999290,28cyclictest0-21swapper/620:40:026
169684999290,28cyclictest0-21swapper/619:25:026
1696846992928,1cyclictest1879463-21appstreamcli00:35:035
169684699290,29cyclictest1714379-21apt-get19:40:015
169684699290,28cyclictest1839697-21apt-get23:25:025
169684699290,28cyclictest1747720-21apt-get20:40:025
169684699290,28cyclictest0-21swapper/521:40:045
169684699290,28cyclictest0-21swapper/521:02:395
169684699290,28cyclictest0-21swapper/520:55:025
169684699290,28cyclictest0-21swapper/519:30:025
169684699290,28cyclictest0-21swapper/519:19:255
169684399290,28cyclictest1772678-21cron21:25:014
169684399290,28cyclictest0-21swapper/423:04:414
169684399290,28cyclictest0-21swapper/422:43:114
169684399290,28cyclictest0-21swapper/422:03:564
169684399290,28cyclictest0-21swapper/421:45:014
169684399290,28cyclictest0-21swapper/419:35:024
1696842992928,1cyclictest1719821-21cron19:50:013
1696842992927,1cyclictest1869485-21latency_hist00:15:023
1696842992927,1cyclictest0-21swapper/322:10:023
169684299290,28cyclictest0-21swapper/323:05:023
169684299290,28cyclictest0-21swapper/321:15:033
1696839992927,1cyclictest1703016-21cron19:20:012
1696839992924,5cyclictest0-21swapper/221:20:022
169683999290,29cyclictest290-21plymouthd20:15:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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