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2025-05-02 - 12:42
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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 Fri May 02, 2025 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17048993128,2cyclictest19837-21cron20:25:003
17048993028,1cyclictest303-21systemd-journal22:15:003
1704399300,2cyclictest27069-21idleruntime-cro00:05:012
1704399300,29cyclictest609-21dbus-daemon22:25:002
1703999300,2cyclictest21174-21cron22:45:011
1703999300,2cyclictest10522-21cron20:05:001
17048992927,1cyclictest31990-21apt-get00:15:133
1704899290,1cyclictest11584-21munin-run22:24:593
17043992927,1cyclictest4026-21perf20:59:592
17043992927,1cyclictest10921-21sendmail-msp00:40:012
1704399290,28cyclictest20437-21apt-get20:25:142
1704399290,28cyclictest10935-21apt-get23:30:152
1703899290,28cyclictest0-21swapper/023:00:140
17048992827,1cyclictest26596-21apt-get19:30:143
1704899280,0cyclictest0-21swapper/300:30:143
17043992828,0cyclictest28747-21apt-get23:00:132
17043992828,0cyclictest0-21swapper/222:30:142
17043992827,1cyclictest31574-21apt-get19:40:202
1704399280,28cyclictest21460-21apt-get22:45:132
1704399280,27cyclictest4238-21apt-get00:25:142
1703999280,28cyclictest0-21swapper/121:55:141
1703999280,28cyclictest0-21swapper/119:25:141
17038992826,1cyclictest0-21swapper/020:10:010
17048992727,0cyclictest18320-21apt-get21:30:173
17048992727,0cyclictest0-21swapper/323:10:133
17048992727,0cyclictest0-21swapper/322:25:143
17048992727,0cyclictest0-21swapper/321:45:133
17048992727,0cyclictest0-21swapper/320:25:133
17048992727,0cyclictest0-21swapper/320:05:163
1704899270,0cyclictest0-21swapper/319:45:183
1704399270,0cyclictest0-21swapper/219:45:172
17039992727,0cyclictest5989-21apt-get23:20:141
17039992727,0cyclictest27921-21apt-get21:50:141
17039992727,0cyclictest0-21swapper/123:45:151
17039992727,0cyclictest0-21swapper/122:45:131
17039992727,0cyclictest0-21swapper/119:40:201
17039992727,0cyclictest0-21swapper/119:35:021
17039992726,1cyclictest10955-21munin-run00:40:011
17038992727,0cyclictest14467-21apt-get22:30:140
17038992727,0cyclictest0-21swapper/023:30:150
17038992727,0cyclictest0-21swapper/021:15:010
17038992727,0cyclictest0-21swapper/019:30:140
17038992727,0cyclictest0-21swapper/019:10:140
17038992726,1cyclictest15464-21apt-get20:15:160
1703899270,27cyclictest0-21swapper/022:05:150
1703899270,27cyclictest0-21swapper/021:25:160
1703899270,0cyclictest0-21swapper/021:45:140
17048992626,0cyclictest0-21swapper/323:30:153
17048992626,0cyclictest0-21swapper/321:40:153
17043992626,0cyclictest0-21swapper/220:40:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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