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2026-05-05 - 15:51
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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 May 05, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32047782231172,48sleep10-21swapper/107:07:461
32048292229201,18sleep50-21swapper/507:08:325
32048012228167,19sleep60-21swapper/607:08:086
32047142228170,19sleep20-21swapper/207:06:512
32049232219190,19sleep40-21swapper/407:09:514
32047892208177,21sleep30-21swapper/307:07:573
32025722207176,20sleep70-21swapper/707:05:047
32048872203173,20sleep00-21swapper/007:09:230
320519799340,32cyclictest3296619-21unix_chkpwd10:00:016
320518099340,32cyclictest374-21systemd-journal09:55:011
320519799330,32cyclictest3289445-21cron09:40:016
320519799320,31cyclictest3328769-21cron11:05:006
320517699320,31cyclictest374-21systemd-journal10:50:010
3205197993126,4cyclictest374-21systemd-journal07:25:016
320518999310,30cyclictest0-21swapper/312:20:023
320517699310,30cyclictest3239283-21apt-get08:10:040
320519599300,29cyclictest3267132-21unix_chkpwd09:00:015
3205191993027,2cyclictest3376203-21munin-run12:30:024
320519199300,29cyclictest3253680-21chrt08:35:144
320519199300,29cyclictest0-21swapper/411:15:014
3205189993028,1cyclictest0-21swapper/308:00:153
320518999300,1cyclictest1-21systemd10:25:013
320518599300,29cyclictest3367763-21cron12:15:002
3205180993029,1cyclictest0-21swapper/108:55:021
320518099300,29cyclictest3242107-21munin-run08:15:011
320518099300,29cyclictest3220142-21apt-get07:35:151
320518099300,29cyclictest3220142-21apt-get07:35:151
320517699300,30cyclictest3253677-21apt-get08:35:130
320517699300,29cyclictest374-21systemd-journal09:05:020
3205200992928,1cyclictest3225336-21apt-get07:45:047
3205200992928,1cyclictest3225336-21apt-get07:45:047
3205200992928,1cyclictest0-21swapper/709:55:047
320520099290,29cyclictest3272758-21true09:10:027
320520099290,29cyclictest0-21swapper/712:35:157
320520099290,28cyclictest3284330-21apt-get09:30:157
320520099290,28cyclictest0-21swapper/710:35:147
320520099290,1cyclictest3309736-21apt-get10:30:147
320520099290,1cyclictest3267599-21apt-get09:00:157
3205197992928,1cyclictest3312126-21910:35:016
320519799290,28cyclictest0-21swapper/608:55:166
320519799290,28cyclictest0-21swapper/608:40:176
320519799290,1cyclictest0-21swapper/607:10:036
320519599290,28cyclictest3320871-21apt-get10:50:155
320519599290,28cyclictest3287114-21apt-get09:35:165
320519599290,28cyclictest3270378-21apt-get09:05:165
320519599290,28cyclictest3248122-21apt-get08:25:175
320519599290,1cyclictest3297458-21910:05:015
3205191992928,1cyclictest0-21swapper/408:10:034
3205191992927,1cyclictest0-21swapper/409:10:154
320519199290,28cyclictest0-21swapper/412:35:144
320519199290,1cyclictest856-21dbus-daemon12:35:024
320519199290,1cyclictest3367764-21cron12:15:014
3205189992927,1cyclictest1-21systemd07:50:013
3205189992927,1cyclictest1-21systemd07:50:003
3205189992927,1cyclictest0-21swapper/311:30:153
3205189992927,1cyclictest0-21swapper/311:30:153
320518999290,28cyclictest0-21swapper/312:30:023
320518999290,28cyclictest0-21swapper/312:20:153
320518999290,28cyclictest0-21swapper/312:10:143
320518999290,28cyclictest0-21swapper/310:25:163
320518999290,28cyclictest0-21swapper/309:15:143
320518999290,28cyclictest0-21swapper/307:40:143
320518999290,28cyclictest0-21swapper/307:40:133
320518999290,1cyclictest3273162-21apt-get09:10:153
320518599290,28cyclictest0-21swapper/212:35:022
320518599290,28cyclictest0-21swapper/210:20:132
320518599290,28cyclictest0-21swapper/210:15:112
320518599290,28cyclictest0-21swapper/209:15:142
320518599290,28cyclictest0-21swapper/209:00:152
320518599290,28cyclictest0-21swapper/208:35:142
320518599290,28cyclictest0-21swapper/207:55:012
320518599290,28cyclictest0-21swapper/207:35:152
320518599290,28cyclictest0-21swapper/207:35:152
320518599290,1cyclictest0-21swapper/207:59:482
320518599290,1cyclictest0-21swapper/207:45:032
320518599290,1cyclictest0-21swapper/207:45:032
3205180992928,1cyclictest0-21swapper/109:55:041
320518099290,28cyclictest3345910-21apt-get11:35:141
320518099290,28cyclictest0-21swapper/111:45:161
320518099290,28cyclictest0-21swapper/109:15:141
320517699290,29cyclictest3230915-21cron07:55:000
320517699290,29cyclictest1-21systemd08:10:020
320517699290,29cyclictest0-21swapper/009:30:010
320517699290,28cyclictest0-21swapper/011:55:160
320517699290,28cyclictest0-21swapper/011:50:150
320517699290,28cyclictest0-21swapper/010:40:160
320517699290,0cyclictest0-21swapper/011:22:200
3205200992828,0cyclictest0-21swapper/708:00:007
3205200992827,1cyclictest3340354-21apt-get11:25:167
3205200992827,1cyclictest3340354-21apt-get11:25:167
3205200992827,1cyclictest3306961-21apt-get10:25:167
3205200992827,1cyclictest1-21systemd10:15:007
3205200992827,1cyclictest0-21swapper/708:15:157
320520099280,28cyclictest0-21swapper/707:50:147
320520099280,28cyclictest0-21swapper/707:40:027
320520099280,28cyclictest0-21swapper/707:40:027
320520099280,27cyclictest0-21swapper/708:00:157
3205197992827,1cyclictest3239756-21apt-get08:10:166
3205197992827,1cyclictest0-21swapper/612:15:146
3205197992827,1cyclictest0-21swapper/609:55:016
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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