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2026-04-24 - 15:00
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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 Fri Apr 24, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21922042258186,23sleep40-21swapper/419:08:494
21899252240174,22sleep60-21swapper/619:05:056
21921272231170,20sleep10-21swapper/119:07:411
21922212221186,21sleep30-21swapper/319:09:043
21920562221188,21sleep70-21swapper/719:06:437
21920312213182,20sleep20-21swapper/219:06:222
21919892213186,17sleep50-21swapper/519:05:445
21919732209176,21sleep00-21swapper/019:05:310
2192500993431,2cyclictest100-21kauditd23:45:012
2192502993328,4cyclictest2229314-21unix_chkpwd20:15:013
219249499332,3cyclictest18-1pr/ttyS000:25:010
219251299320,31cyclictest2209806-21cron19:40:007
219251299320,1cyclictest2206980-21919:34:357
2192508993227,5cyclictest2304663-21cron22:30:016
219250899320,28cyclictest0-21swapper/622:17:016
219250899320,28cyclictest0-21swapper/622:17:016
2192506993230,2cyclictest2354856-21cmp00:00:015
2192506993230,2cyclictest2354856-21cmp00:00:015
219250299323,28cyclictest18-1pr/ttyS019:55:013
2192494993227,4cyclictest2365774-40systemctl00:17:510
2192508993127,3cyclictest18-1pr/ttyS019:15:016
2192508993126,4cyclictest2229758-21apt-get20:15:126
219250899310,30cyclictest0-21swapper/620:40:016
219250899310,30cyclictest0-21swapper/620:40:016
219250699310,30cyclictest0-21swapper/519:54:565
219250599310,2cyclictest3986178-21systemd-journal21:40:014
219250299310,30cyclictest2338049-21cron23:30:013
2192500993127,4cyclictest0-21swapper/219:34:352
219250099310,30cyclictest2369953-21apt-get00:25:132
2192496993129,1cyclictest18-1pr/ttyS021:10:001
2192496993128,2cyclictest3986178-21systemd-journal00:25:011
219249699310,30cyclictest0-21swapper/120:55:031
219249699310,29cyclictest0-21swapper/120:17:011
219249499310,30cyclictest2349365-21latency_hist23:50:010
2192512993028,1cyclictest2299545-21apt-get22:20:137
2192512993028,1cyclictest2279587-21apt-get21:45:057
219250699301,28cyclictest18-1pr/ttyS023:34:565
219250699300,2cyclictest2223947-21cat20:05:015
219250699300,29cyclictest0-21swapper/523:15:115
2192502993028,1cyclictest2271655-21apt-get21:30:133
219250299300,29cyclictest2204685-21apt-get19:30:113
219250299300,29cyclictest0-21swapper/322:04:553
2192500993028,1cyclictest2252157-21apt-get20:55:122
2192496993025,4cyclictest0-21swapper/119:35:121
219249499300,0cyclictest0-21swapper/021:17:010
2192512992927,1cyclictest2213042-21apt-get19:45:117
219251299290,28cyclictest2338501-21apt-get23:30:137
219251299290,28cyclictest2192821-21apt-get19:10:127
219251299290,28cyclictest0-21swapper/723:40:127
219251299290,28cyclictest0-21swapper/723:05:127
219251299290,28cyclictest0-21swapper/721:20:127
2192508992927,2cyclictest0-21swapper/621:45:026
2192508992927,2cyclictest0-21swapper/619:35:136
2192508992927,2cyclictest0-21swapper/619:15:016
2192508992927,1cyclictest2221390-21apt-get20:00:116
219250899290,28cyclictest0-21swapper/621:35:136
219250899290,28cyclictest0-21swapper/620:25:136
2192506992927,1cyclictest19-1pr/legacy00:30:015
219250699290,28cyclictest2367173-21apt-get00:20:135
219250699290,28cyclictest0-21swapper/523:05:115
219250699290,28cyclictest0-21swapper/522:20:135
219250699290,28cyclictest0-21swapper/521:55:145
2192505992928,1cyclictest2355254-21apt-get00:00:134
2192505992928,1cyclictest2352445-21apt-get23:55:124
2192505992928,1cyclictest2352445-21apt-get23:55:124
219250599290,1cyclictest2358041-21apt-get00:05:124
219250599290,1cyclictest0-21swapper/421:45:124
2192502992929,0cyclictest0-21swapper/320:25:063
2192502992927,1cyclictest2192821-21apt-get19:10:123
219250299290,29cyclictest0-21swapper/320:55:013
219250299290,28cyclictest2213042-21apt-get19:45:123
219250299290,1cyclictest0-21swapper/320:30:123
2192500992929,0cyclictest0-21swapper/220:10:062
2192500992927,1cyclictest2330143-21apt-get23:15:112
219250099290,28cyclictest0-21swapper/223:35:132
219250099290,28cyclictest0-21swapper/222:25:132
219250099290,28cyclictest0-21swapper/220:35:122
219250099290,28cyclictest0-21swapper/220:35:122
219250099290,28cyclictest0-21swapper/220:30:122
2192496992928,1cyclictest0-21swapper/119:35:001
219249699290,28cyclictest2316229-21apt-get22:50:101
219249699290,28cyclictest0-21swapper/123:35:131
219249699290,28cyclictest0-21swapper/121:10:121
219249699290,28cyclictest0-21swapper/120:25:131
219249699290,1cyclictest0-21swapper/123:45:101
219249699290,1cyclictest0-21swapper/100:30:131
2192494992927,1cyclictest0-21swapper/021:00:120
2192494992927,1cyclictest0-21swapper/020:55:120
219249499290,28cyclictest2257733-21apt-get21:05:130
219249499290,28cyclictest0-21swapper/021:30:140
219249499290,28cyclictest0-21swapper/020:15:120
219249499290,28cyclictest0-21swapper/020:10:120
219249499290,28cyclictest0-21swapper/019:35:130
219249499290,1cyclictest0-21swapper/023:25:130
2192512992827,1cyclictest0-21swapper/722:15:147
2192512992827,1cyclictest0-21swapper/722:15:147
2192512992826,1cyclictest2238214-21apt-get20:30:117
219251299280,28cyclictest0-21swapper/720:55:017
219251299280,0cyclictest0-21swapper/719:15:127
2192508992828,0cyclictest19-1pr/legacy00:17:516
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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