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2024-11-22 - 11:36
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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 Nov 22, 2024 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2003599310,30cyclictest10912-21sendmail20:00:010
20045993028,1cyclictest27262-21apt20:34:593
20045993028,1cyclictest20492-21apt-get23:50:093
2004599300,29cyclictest4217-21apt-get19:45:143
20042993027,2cyclictest9701-21idleruntime-cro22:15:002
2003599300,29cyclictest303-21systemd-journal19:20:010
20045992927,1cyclictest609-21dbus-daemon22:20:003
20045992927,1cyclictest4592-21apt-get00:25:023
20045992926,2cyclictest303-21systemd-journal22:10:003
2004299290,28cyclictest7781-21apt-get00:30:152
2004299290,28cyclictest27666-21apt-get00:05:142
2004299290,1cyclictest2168-21munin-plugin-st20:50:012
2004099290,28cyclictest10531-21apt-get23:25:111
2004099290,28cyclictest0-21swapper/123:10:021
2004099290,28cyclictest0-21swapper/120:30:101
20035992928,1cyclictest7664-21apt-get22:10:140
2003599290,28cyclictest2717-21munin-run22:00:010
2003599290,28cyclictest12046-21perf22:20:000
2003599290,1cyclictest303-21systemd-journal00:40:010
2003599290,1cyclictest11204-21apt-get20:00:150
2003599290,1cyclictest0-21swapper/020:15:130
20045992828,0cyclictest0-21swapper/321:15:113
20045992826,1cyclictest611-21avahi-daemon19:45:013
20045992826,1cyclictest0-21swapper/321:40:013
20042992828,0cyclictest0-21swapper/200:20:132
2004299280,28cyclictest0-21swapper/220:15:142
2004299280,27cyclictest0-21swapper/222:30:162
2004299280,1cyclictest26074-21apt-get21:40:122
20040992826,1cyclictest303-21systemd-journal20:55:011
2004099280,1cyclictest27405-21perf00:05:011
2004099280,0cyclictest0-21swapper/122:40:111
20035992828,0cyclictest13522-21apt-get20:05:120
20035992828,0cyclictest0-21swapper/023:55:120
20035992828,0cyclictest0-21swapper/021:05:150
2003599280,28cyclictest0-21swapper/019:20:120
2003599280,0cyclictest0-21swapper/000:00:110
20045992727,0cyclictest0-21swapper/322:00:113
20045992727,0cyclictest0-21swapper/319:35:123
20045992726,1cyclictest17525-21apt-get23:40:133
20045992725,1cyclictest23449-21awk21:35:003
20045992725,1cyclictest0-21swapper/320:25:013
2004599270,0cyclictest0-21swapper/323:10:013
2004599270,0cyclictest0-21swapper/320:35:103
20042992727,0cyclictest27542-21apt-get20:35:102
20042992727,0cyclictest0-21swapper/222:25:012
20042992726,1cyclictest2423-21apt-get20:50:132
20040992726,1cyclictest31011-21apt-get23:00:111
20040992726,1cyclictest22397-21grep19:15:001
2004099270,0cyclictest0-21swapper/121:05:111
20035992727,0cyclictest28396-21apt-get21:45:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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