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2026-05-04 - 14:27
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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 Mon May 04, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23892052232168,18sleep40-21swapper/419:05:054
23913962222162,18sleep70-21swapper/719:07:337
23914082219189,20sleep10-21swapper/119:07:431
23914002213184,19sleep20-21swapper/219:07:362
23913562212177,24sleep50-21swapper/519:06:595
23915052211184,18sleep60-21swapper/619:09:096
23914012206177,19sleep30-21swapper/319:07:363
23913212206177,20sleep00-21swapper/019:06:300
239178099330,31cyclictest2434228-21packagekitd20:25:012
239179399320,31cyclictest2559695-21cron00:10:017
239179399320,31cyclictest2448109-21turbostat.cron20:50:007
2391789993229,3cyclictest0-21swapper/620:25:016
239179399310,30cyclictest1-21systemd19:55:017
239178299310,29cyclictest0-21swapper/322:20:043
239177499310,30cyclictest2521094-21apt-get23:00:160
239179399300,2cyclictest2489914-21cron22:05:027
239179399300,29cyclictest0-21swapper/723:00:167
239179399300,1cyclictest0-21swapper/720:05:007
2391789993029,1cyclictest791rcuc/622:10:026
2391789993026,3cyclictest2439755-21cron20:35:016
2391789993026,3cyclictest2439755-21cron20:35:016
239178999300,29cyclictest2528993-21cron23:15:016
2391786993026,3cyclictest2464807-21cron21:20:015
239178699300,29cyclictest374-21systemd-journal23:05:015
2391785993028,1cyclictest2484785-21apt-get21:55:164
239178599300,29cyclictest374-21systemd-journal21:55:014
239178599300,29cyclictest0-21swapper/422:55:154
239178299300,29cyclictest2537385-21cron23:30:003
239178299300,29cyclictest2453717-21sendmail21:00:013
239178299300,29cyclictest0-21swapper/323:15:173
239178299300,1cyclictest0-21swapper/321:45:023
239178099300,29cyclictest2556922-21cron00:05:012
2391793992928,1cyclictest2529441-21apt-get23:15:177
239179399290,29cyclictest0-21swapper/700:15:017
239179399290,29cyclictest0-21swapper/700:15:017
239179399290,28cyclictest2498783-21apt-get22:20:147
239179399290,28cyclictest0-21swapper/723:35:177
239179399290,28cyclictest0-21swapper/720:50:167
239179399290,28cyclictest0-21swapper/700:30:147
239179399290,1cyclictest2459689-21apt-get21:10:167
2391789992927,1cyclictest2560137-21apt-get00:10:176
2391789992927,1cyclictest2560137-21apt-get00:10:176
2391789992927,1cyclictest2534942-21pool-spawner23:25:036
2391789992927,1cyclictest2415100-21apt-get19:50:156
2391789992927,1cyclictest0-21swapper/622:45:166
2391789992927,1cyclictest0-21swapper/619:40:166
239178999290,28cyclictest0-21swapper/622:15:146
239178999290,28cyclictest0-21swapper/620:55:146
239178999290,28cyclictest0-21swapper/620:25:046
239178999290,28cyclictest0-21swapper/619:45:156
239178999290,28cyclictest0-21swapper/619:35:176
239178999290,28cyclictest0-21swapper/619:25:016
239178999290,28cyclictest0-21swapper/600:30:156
239178999290,28cyclictest0-21swapper/600:05:166
239178999290,1cyclictest0-21swapper/623:25:016
239178999290,1cyclictest0-21swapper/622:00:156
2391786992927,1cyclictest2467605-21cron21:25:015
2391786992927,1cyclictest0-21swapper/522:35:175
2391786992927,1cyclictest0-21swapper/519:25:155
239178699290,28cyclictest2554185-21appstreamcli00:00:015
239178699290,28cyclictest0-21swapper/521:55:025
239178699290,28cyclictest0-21swapper/521:25:145
239178699290,28cyclictest0-21swapper/520:50:165
239178699290,28cyclictest0-21swapper/520:25:155
239178699290,1cyclictest2478830-21appstreamcli21:45:045
239178599290,28cyclictest2574060-21apt-get00:35:174
239178599290,28cyclictest2540615-21apt-get23:35:164
239178599290,28cyclictest0-21swapper/423:20:154
239178599290,28cyclictest0-21swapper/422:20:054
239178599290,28cyclictest0-21swapper/421:05:014
239178599290,28cyclictest0-21swapper/420:45:164
239178599290,28cyclictest0-21swapper/420:00:014
239178599290,28cyclictest0-21swapper/419:40:154
239178599290,1cyclictest2406754-21apt-get19:35:174
2391782992927,1cyclictest2442531-21cron20:40:013
2391782992927,1cyclictest2442531-21cron20:40:013
2391782992927,1cyclictest2411888-21idleruntime-cro19:45:013
2391782992927,1cyclictest0-21swapper/322:05:023
239178299290,28cyclictest0-21swapper/323:00:153
239178299290,28cyclictest0-21swapper/322:20:023
239178299290,28cyclictest0-21swapper/322:10:023
239178299290,28cyclictest0-21swapper/300:35:173
239178299290,28cyclictest0-21swapper/300:25:013
239178299290,1cyclictest0-21swapper/323:35:003
239178299290,1cyclictest0-21swapper/322:10:153
2391780992928,1cyclictest2437418-21apt-get20:30:162
2391780992928,1cyclictest2437418-21apt-get20:30:152
2391780992928,1cyclictest0-21swapper/220:25:042
2391780992927,1cyclictest374-21systemd-journal19:45:012
2391780992927,1cyclictest0-21swapper/222:10:012
2391780992927,1cyclictest0-21swapper/222:05:012
239178099290,28cyclictest2560137-21apt-get00:10:172
239178099290,28cyclictest2560137-21apt-get00:10:172
239178099290,28cyclictest2476415-21apt-get21:40:162
239178099290,28cyclictest0-21swapper/223:10:152
239178099290,28cyclictest0-21swapper/221:00:142
239178099290,1cyclictest2442533-21cron20:40:002
239178099290,1cyclictest2442533-21cron20:40:002
239178099290,1cyclictest0-21swapper/220:55:012
239178099290,1cyclictest0-21swapper/219:55:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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