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2025-04-02 - 04:19
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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 20 highest latencies:
System rackeslot5.osadl.org (updated Wed Apr 02, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
374799320,30cyclictest303-21systemd-journal19:20:020
374799300,29cyclictest27073-21sendmail-msp20:00:020
3760992927,1cyclictest10840-21sendmail-msp00:40:013
376099290,28cyclictest0-21swapper/321:20:123
376099290,28cyclictest0-21swapper/320:10:123
376099290,1cyclictest0-21swapper/321:00:133
3751992927,1cyclictest10842-21idleruntime-cro00:40:011
375199290,28cyclictest15412-21munin-run19:35:001
375199290,28cyclictest0-21swapper/121:00:121
375199290,28cyclictest0-21swapper/120:00:151
374799290,28cyclictest0-21swapper/023:35:150
376099280,28cyclictest15401-21perf19:35:013
376099280,0cyclictest0-21swapper/320:00:143
3756992827,1cyclictest14867-21cron20:50:012
375199280,27cyclictest0-21swapper/120:10:111
375199280,27cyclictest0-21swapper/100:30:131
3747992828,0cyclictest2589-21cron20:20:000
374799280,27cyclictest0-21swapper/020:20:130
374799280,0cyclictest0-21swapper/022:50:090
3760992727,0cyclictest2880-21apt-get20:20:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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