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2026-04-30 - 09:50
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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 Thu Apr 30, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15746292234172,19sleep60-21swapper/619:06:536
15746002234171,19sleep40-21swapper/419:06:264
15748322233173,18sleep50-21swapper/519:09:425
15746122229170,48sleep70-21swapper/719:06:387
15748502225167,18sleep20-21swapper/219:09:552
15746172215186,19sleep30-21swapper/319:06:413
15747442205179,17sleep00-21swapper/019:08:320
15745682205177,19sleep10-21swapper/119:06:001
157509799360,4cyclictest1703935-21cron23:40:017
157509499340,28cyclictest0-21swapper/623:30:006
157508899343,3cyclictest1-21systemd21:05:014
157508699340,5cyclictest1707083-21cat23:45:013
157508299340,32cyclictest1625807-21cron20:40:002
1575092993327,1cyclictest0-21swapper/522:10:165
1575097993227,4cyclictest1603519-21cron20:00:017
157509799320,29cyclictest1704397-21apt-get23:40:177
157508299320,31cyclictest1584476-21http19:25:172
157509799310,31cyclictest1-21systemd20:55:007
157509799310,28cyclictest0-21swapper/723:20:157
157509499310,28cyclictest0-21swapper/621:20:166
157508899310,29cyclictest0-21swapper/420:50:014
157508899310,29cyclictest0-21swapper/420:50:014
157508899310,28cyclictest0-21swapper/423:40:174
157507799311,29cyclictest0-21swapper/120:35:011
157507399310,3cyclictest1620250-21cron20:30:010
157509799300,29cyclictest1675514-21cron22:20:017
157509799300,0cyclictest0-21swapper/723:30:177
1575094993024,5cyclictest1-21systemd20:50:016
1575094993024,5cyclictest1-21systemd20:50:006
157509499300,29cyclictest1623029-21cron20:35:016
1575092993028,0cyclictest1697293-21apt-get23:20:165
1575092993026,3cyclictest1-21systemd22:30:025
157509299300,30cyclictest1-21systemd00:25:005
1575088993027,3cyclictest0-21swapper/423:45:034
1575086993030,0cyclictest0-21swapper/322:30:173
157508699300,29cyclictest0-21swapper/321:05:183
157507799300,29cyclictest1696851-21munin-run23:20:011
157507799300,29cyclictest0-21swapper/120:50:171
157507799300,28cyclictest0-21swapper/122:15:011
157507399300,30cyclictest0-21swapper/000:15:010
157507399300,29cyclictest1581219-21cron19:20:010
1575097992928,1cyclictest0-21swapper/723:45:037
1575097992928,1cyclictest0-21swapper/719:50:157
157509799290,28cyclictest0-21swapper/721:20:167
157509799290,28cyclictest0-21swapper/721:00:167
157509799290,28cyclictest0-21swapper/719:40:177
157509799290,1cyclictest0-21swapper/720:50:007
157509799290,1cyclictest0-21swapper/720:50:007
157509499290,28cyclictest1719424-21apt-get00:20:166
157509499290,28cyclictest1643018-21apt-get21:10:176
157509499290,28cyclictest0-21swapper/620:50:166
157509499290,28cyclictest0-21swapper/620:10:186
157509499290,1cyclictest0-21swapper/622:15:026
157509299290,28cyclictest1634656-21apt-get20:55:155
157509299290,28cyclictest0-21swapper/521:15:155
157509299290,28cyclictest0-21swapper/521:05:175
157509299290,28cyclictest0-21swapper/519:30:175
157509299290,1cyclictest0-21swapper/520:40:015
157509299290,1cyclictest0-21swapper/500:10:015
1575088992927,2cyclictest1134-21gmain20:00:004
1575088992927,1cyclictest0-21swapper/419:50:144
157508899290,28cyclictest0-21swapper/423:30:174
1575086992926,3cyclictest1725355-21900:35:003
1575086992926,3cyclictest1725355-21900:35:003
1575086992926,2cyclictest1696057-21cron23:15:013
157508699290,28cyclictest1577916-21cat19:15:003
157508699290,28cyclictest0-21swapper/323:30:173
157508699290,28cyclictest0-21swapper/321:40:053
157508699290,28cyclictest0-21swapper/321:40:023
157508699290,28cyclictest0-21swapper/320:10:013
1575082992928,1cyclictest1581691-21apt-get19:20:152
1575082992928,1cyclictest0-21swapper/223:50:152
157508299290,28cyclictest1656533-21systemd-run21:35:022
157508299290,28cyclictest0-21swapper/223:40:162
157508299290,28cyclictest0-21swapper/220:10:182
157508299290,28cyclictest0-21swapper/200:00:162
157508299290,1cyclictest0-21swapper/223:45:022
157508299290,1cyclictest0-21swapper/220:20:172
1575077992927,1cyclictest0-21swapper/100:05:011
157507799290,28cyclictest0-21swapper/121:10:171
157507799290,28cyclictest0-21swapper/120:55:171
157507799290,1cyclictest1693724-21apt-get23:10:151
1575073992925,3cyclictest1-21systemd20:20:000
157507399290,28cyclictest0-21swapper/019:25:160
1575097992826,1cyclictest0-21swapper/723:50:157
1575097992826,1cyclictest0-21swapper/720:10:017
1575094992827,1cyclictest0-21swapper/621:00:006
1575094992827,0cyclictest0-21swapper/619:50:156
1575094992826,1cyclictest1675988-21apt-get22:20:186
1575094992826,1cyclictest1668498-21922:00:026
1575094992826,1cyclictest0-21swapper/622:20:026
1575094992825,0cyclictest0-21swapper/621:00:166
157509299280,28cyclictest1725301-21cron00:35:015
157509299280,28cyclictest1725301-21cron00:35:015
157509299280,28cyclictest1664931-21921:50:015
157509299280,28cyclictest1606354-21munin-run20:05:015
1575088992827,1cyclictest1672424-21apt-get22:10:174
1575088992827,1cyclictest0-21swapper/421:05:184
1575088992826,1cyclictest0-21swapper/422:30:174
157508899280,28cyclictest0-21swapper/421:25:174
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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