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2026-05-25 - 05:37
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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 50 highest latencies:
System rackeslot5.osadl.org (updated Mon May 25, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3083099340,33cyclictest3483-21munin-run23:55:011
3084099310,30cyclictest8603-21perf20:40:003
30836993028,2cyclictest16141-21apt-get20:55:112
3083099300,29cyclictest281052sleep121:20:111
30829993028,1cyclictest0-21swapper/023:40:010
3082999300,29cyclictest24328-21cron20:05:000
3082999300,29cyclictest22542-21cron00:35:010
3082999300,29cyclictest20521-21awk21:05:000
30840992927,1cyclictest3865-21idleruntime-cro20:30:013
3084099290,28cyclictest0-21swapper/322:40:003
30836992927,1cyclictest307-21systemd-journal20:05:002
3083699290,28cyclictest8583-21apt-get00:05:152
3083699290,28cyclictest12874-21apt-get23:05:102
3083099290,1cyclictest20554-21munin-run21:05:011
3082999290,28cyclictest0-21swapper/022:15:120
3082999290,28cyclictest0-21swapper/020:35:120
3082999290,28cyclictest0-21swapper/020:25:010
30840992826,1cyclictest17635-21apt-get19:50:133
3084099280,0cyclictest11194-21apt-get20:45:123
3083699280,28cyclictest12687-21apt-get19:40:112
3083699280,27cyclictest24513-21apt-get23:30:142
3083699280,27cyclictest0-21swapper/221:30:112
30830992826,1cyclictest1123-21sh23:50:011
3083099280,27cyclictest0-21swapper/122:45:131
3083099280,0cyclictest0-21swapper/122:35:121
3083099280,0cyclictest0-21swapper/120:05:141
30829992828,0cyclictest0-21swapper/021:30:110
30829992828,0cyclictest0-21swapper/000:05:160
3082999280,0cyclictest0-21swapper/020:55:110
30840992727,0cyclictest0-21swapper/320:15:133
30836992727,0cyclictest6530-21apt-get20:35:122
30836992727,0cyclictest15009-21apt-get19:45:112
30836992727,0cyclictest0-21swapper/222:15:122
30836992725,1cyclictest28920-21munin-run23:40:022
3083699270,27cyclictest5626-21perf22:50:012
3083699270,0cyclictest0-21swapper/220:15:142
30830992727,0cyclictest0-21swapper/122:25:111
30830992727,0cyclictest0-21swapper/119:45:111
3083099270,0cyclictest0-21swapper/122:30:121
30829992727,0cyclictest0-21swapper/022:35:130
30829992727,0cyclictest0-21swapper/022:25:110
30829992726,1cyclictest0-21swapper/022:20:110
30829992726,0cyclictest0-21swapper/023:05:110
30840992626,0cyclictest30423-21apt-get21:25:123
30840992626,0cyclictest0-21swapper/323:05:103
30840992626,0cyclictest0-21swapper/321:05:123
30840992626,0cyclictest0-21swapper/319:55:133
30840992626,0cyclictest0-21swapper/319:45:113
30840992626,0cyclictest0-21swapper/319:20:113
30840992626,0cyclictest0-21swapper/300:15:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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