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2026-06-05 - 13:17
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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 Jun 05, 2026 00:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39777952243189,44sleep10-21swapper/119:07:001
39779122240173,20sleep60-21swapper/619:08:426
39777462232173,19sleep20-21swapper/219:06:212
39779552212183,19sleep40-21swapper/419:09:204
39777132212184,18sleep50-21swapper/519:05:515
39777112212182,20sleep30-21swapper/319:05:493
39778972207174,21sleep00-21swapper/019:08:270
39778192202170,20sleep70-21swapper/719:07:217
3978211994122,18cyclictest0-21swapper/321:20:013
397821199370,32cyclictest4056844-21cron21:30:013
3978211993323,8cyclictest279850-21systemd-journal19:15:023
3978222993227,4cyclictest3990440-21http19:30:087
397822299320,4cyclictest4154855-21http00:25:107
3978217993230,1cyclictest964-21in:imuxsock21:00:016
3978211993228,4cyclictest0-21swapper/322:50:013
397820799320,31cyclictest4110091-21sed23:05:022
3978202993228,3cyclictest1-21systemd20:20:010
397822299310,3cyclictest4115402-21cron23:15:017
397821799310,3cyclictest4162746-21cron00:40:016
3978205993127,3cyclictest1-21systemd23:25:021
397820599310,29cyclictest0-21swapper/120:10:071
3978202993127,3cyclictest4115401-21cron23:15:010
3978222993028,1cyclictest4071199-21apt-get21:55:097
397822299300,29cyclictest4140930-21apt-get00:00:077
397822299300,29cyclictest3978536-21apt-get19:10:077
397821499300,29cyclictest0-21swapper/500:15:095
3978212993025,4cyclictest4042917-21unix_chkpwd21:05:014
3978211993028,2cyclictest1-21systemd23:50:023
3978211993024,5cyclictest279850-21systemd-journal21:10:013
397821199301,29cyclictest4079117-21cron22:10:013
397821199300,30cyclictest107-21kcompactd019:15:193
397821199300,29cyclictest0-21swapper/322:55:453
397821199300,29cyclictest0-21swapper/322:15:073
397821199300,28cyclictest0-21swapper/322:40:013
397821199300,0cyclictest0-21swapper/321:37:483
397820799300,29cyclictest4023433-21cron20:30:012
397820799300,29cyclictest279850-21systemd-journal00:05:012
397820299300,29cyclictest17-21ksoftirqd/021:50:010
3978222992927,1cyclictest0-21swapper/721:45:017
3978222992926,2cyclictest4151689-21unin-run00:20:017
3978222992926,2cyclictest3984390-21cron19:20:017
397822299290,28cyclictest0-21swapper/723:05:087
397822299290,28cyclictest0-21swapper/723:00:087
397822299290,28cyclictest0-21swapper/722:45:097
397822299290,28cyclictest0-21swapper/722:33:437
397822299290,28cyclictest0-21swapper/719:35:087
397822299290,28cyclictest0-21swapper/700:10:077
397822299290,1cyclictest4012729-21apt-get20:10:067
3978217992928,1cyclictest0-21swapper/621:00:086
3978217992927,1cyclictest4134920-21sh23:50:026
3978217992927,1cyclictest4121424-21apt-get23:25:076
397821799290,29cyclictest0-21swapper/619:59:256
397821799290,28cyclictest4093086-21apt-get22:35:046
397821799290,28cyclictest0-21swapper/622:30:086
397821799290,28cyclictest0-21swapper/621:25:086
397821799290,28cyclictest0-21swapper/620:15:076
397821799290,28cyclictest0-21swapper/619:40:086
397821799290,1cyclictest3982031-21apt-get19:15:076
397821799290,1cyclictest0-21swapper/620:00:086
397821499290,28cyclictest4004344-21apt-get19:55:075
397821499290,28cyclictest107-21kcompactd021:49:055
397821499290,28cyclictest0-21swapper/523:08:395
397821499290,28cyclictest0-21swapper/500:35:095
397821499290,1cyclictest4043359-21apt-get21:05:085
3978212992928,1cyclictest0-21swapper/423:11:534
3978212992927,1cyclictest4126993-21apt-get23:35:084
397821299291,1cyclictest0-21swapper/421:05:084
397821299290,28cyclictest4079379-21latency_hist22:10:024
397821299290,28cyclictest0-21swapper/400:35:094
397821299290,28cyclictest0-21swapper/400:15:094
397821299290,1cyclictest0-21swapper/419:30:074
3978211992928,1cyclictest4021088-21apt-get20:25:083
3978211992928,1cyclictest0-21swapper/300:39:313
3978211992926,2cyclictest4009481-21unix_chkpwd20:05:023
397821199290,29cyclictest0-21swapper/322:25:003
397821199290,28cyclictest4140933-40updatedb.plocat00:00:103
397821199290,28cyclictest0-21swapper/323:55:093
397821199290,28cyclictest0-21swapper/323:55:023
397821199290,1cyclictest4057280-21apt-get21:30:083
397821199290,1cyclictest4009956-21apt-get20:05:093
3978207992927,1cyclictest4132129-21unix_chkpwd23:45:012
397820799290,28cyclictest4031842-21920:45:012
397820799290,28cyclictest0-21swapper/223:57:352
397820799290,28cyclictest0-21swapper/223:34:282
397820799290,28cyclictest0-21swapper/223:00:012
397820799290,28cyclictest0-21swapper/222:38:332
397820799290,28cyclictest0-21swapper/222:00:102
397820799290,28cyclictest0-21swapper/220:38:402
397820799290,28cyclictest0-21swapper/220:08:012
397820799290,28cyclictest0-21swapper/219:30:012
397820599290,28cyclictest0-21swapper/122:15:071
397820599290,28cyclictest0-21swapper/122:05:081
397820299290,29cyclictest3980881-21cron19:15:010
397820299290,28cyclictest4032223-21apt-get20:45:070
397820299290,28cyclictest0-21swapper/022:10:040
397820299290,28cyclictest0-21swapper/022:10:040
397820299290,28cyclictest0-21swapper/020:50:080
397820299290,28cyclictest0-21swapper/020:40:070
397820299290,28cyclictest0-21swapper/019:40:080
397820299290,28cyclictest0-21swapper/000:22:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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