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2025-12-27 - 06:47
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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 Sat Dec 27, 2025 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4027332230177,18sleep10-21swapper/119:06:301
4049082227172,17sleep20-21swapper/219:09:522
4047982225193,20sleep70-21swapper/719:08:297
4026562224172,17sleep00-21swapper/019:05:240
4026612218191,17sleep30-21swapper/319:05:273
4027742216186,19sleep60-21swapper/619:07:066
4026802212185,17sleep40-21swapper/419:05:434
4027462206178,18sleep50-21swapper/519:06:415
40513199360,36cyclictest0-21swapper/123:01:051
40513199360,36cyclictest0-21swapper/123:01:041
40514999320,31cyclictest552818-21gpgv23:40:026
40515299310,30cyclictest0-21swapper/722:50:027
405131993127,2cyclictest468696-21turbostat.cron21:05:011
40512799310,30cyclictest561093-21latency_hist23:55:010
40515299300,29cyclictest488200-21apt-get21:43:177
405139993028,1cyclictest572543-21apt-get00:18:164
405139993028,1cyclictest465982-21sh21:00:004
40513999300,29cyclictest471370-21cron21:10:004
40513999300,29cyclictest1-21systemd21:55:004
405136993028,1cyclictest485489-21apt-get21:38:153
40513699300,28cyclictest542637-21apt-get23:23:163
405134993027,3cyclictest455613-21apt-get20:43:142
405134993027,2cyclictest452299-21basename20:35:012
405134993027,2cyclictest0-21swapper/221:13:152
405134993026,3cyclictest0-21swapper/222:20:022
40513499300,29cyclictest550707-21http23:38:142
40515299290,28cyclictest0-21swapper/700:38:157
405149992927,1cyclictest422516-21apt-get19:43:146
40514999290,1cyclictest523132-21turbostat.cron22:45:016
405144992927,1cyclictest509393-21apt22:20:005
40514499290,28cyclictest526458-21apt-get22:53:175
40514499290,28cyclictest501325-21debian-sa122:05:015
40514499290,28cyclictest0-21swapper/520:38:155
40514499290,28cyclictest0-21swapper/520:23:155
40513999294,24cyclictest0-21swapper/423:01:084
40513999294,24cyclictest0-21swapper/423:01:074
40513999290,28cyclictest0-21swapper/422:23:154
40513999290,28cyclictest0-21swapper/421:58:124
40513999290,28cyclictest0-21swapper/420:28:154
40513999290,28cyclictest0-21swapper/419:28:154
40513699290,28cyclictest417120-21apt-get19:33:153
40513699290,28cyclictest0-21swapper/322:53:173
40513699290,28cyclictest0-21swapper/322:23:143
40513699290,28cyclictest0-21swapper/321:53:153
40513699290,28cyclictest0-21swapper/321:18:173
40513699290,1cyclictest488200-21apt-get21:43:183
405134992928,1cyclictest0-21swapper/223:00:012
405134992928,1cyclictest0-21swapper/223:00:012
405134992927,2cyclictest0-21swapper/219:50:022
405134992927,1cyclictest0-21swapper/223:53:162
405134992926,3cyclictest0-21swapper/221:23:152
405134992924,4cyclictest539317-21awk23:15:012
40513499290,28cyclictest0-21swapper/221:38:152
40513499290,1cyclictest548017-21http23:33:162
40513499290,1cyclictest1-21systemd21:10:002
405131992927,1cyclictest490882-21apt-get21:48:131
405131992927,1cyclictest0-21swapper/119:13:151
405131992926,2cyclictest369-21systemd-journal22:30:011
40513199290,28cyclictest501358-21idleruntime-cro22:05:011
40513199290,28cyclictest0-21swapper/122:23:161
40513199290,28cyclictest0-21swapper/120:08:161
40513199290,28cyclictest0-21swapper/100:38:151
40513199290,28cyclictest0-21swapper/100:33:151
40513199290,1cyclictest465979-21sh21:00:011
40513199290,1cyclictest0-21swapper/122:38:161
40513199290,1cyclictest0-21swapper/122:20:021
40513199290,1cyclictest0-21swapper/120:55:001
40512799290,29cyclictest474071-21idleruntime-cro21:15:010
40512799290,28cyclictest0-21swapper/022:33:160
40512799290,28cyclictest0-21swapper/020:55:000
40512799290,28cyclictest0-21swapper/020:33:150
40512799290,28cyclictest0-21swapper/019:48:150
40512799290,28cyclictest0-21swapper/000:33:150
405152992827,1cyclictest430202-21apt-get19:55:017
405152992826,2cyclictest16450irq/4-ttyS023:40:027
405152992826,1cyclictest513001-21apt-get22:28:187
40515299280,27cyclictest0-21swapper/723:08:167
40515299280,0cyclictest0-21swapper/720:13:147
405149992827,1cyclictest0-21swapper/622:25:006
405144992827,1cyclictest0-21swapper/521:10:015
405144992827,1cyclictest0-21swapper/520:20:015
405144992826,1cyclictest405664-21apt-get19:13:145
40514499280,27cyclictest0-21swapper/523:43:135
40514499280,27cyclictest0-21swapper/500:18:155
40514499280,1cyclictest411096-21munin-run19:20:025
40514499280,0cyclictest0-21swapper/522:33:165
40514499280,0cyclictest0-21swapper/520:08:155
405139992827,1cyclictest474059-21cron21:15:014
405139992827,1cyclictest0-21swapper/423:13:124
40513999280,0cyclictest0-21swapper/421:38:154
405136992828,0cyclictest0-21swapper/323:53:153
405136992827,0cyclictest0-21swapper/320:03:143
405136992826,1cyclictest0-21swapper/322:00:013
405134992827,1cyclictest482798-21apt-get21:33:132
405134992826,2cyclictest0-21swapper/221:50:012
40513499280,0cyclictest0-21swapper/220:58:162
40513199280,27cyclictest0-21swapper/119:53:161
40513199280,27cyclictest0-21swapper/100:05:021
40513199280,0cyclictest0-21swapper/121:33:141
40513199280,0cyclictest0-21swapper/100:08:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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