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2025-04-24 - 15:24
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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 Thu Apr 24, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1657599330,28cyclictest0-21swapper/120:00:131
1657999310,2cyclictest303-21systemd-journal21:34:592
16575993127,3cyclictest0-21swapper/119:50:171
16581993028,1cyclictest16496-21cron21:35:003
1658199300,29cyclictest609-21dbus-daemon00:00:153
1657999300,2cyclictest26454-21sh22:00:012
1657599300,29cyclictest303-21systemd-journal20:35:001
1658199290,28cyclictest0-21swapper/320:40:133
1657999290,28cyclictest11193-21munin-run21:20:012
1657999290,28cyclictest0-21swapper/223:15:122
16575992927,1cyclictest0-21swapper/100:00:141
1657599290,1cyclictest0-21swapper/122:25:001
1657299290,28cyclictest22095-21apt-get21:50:080
16581992828,0cyclictest0-21swapper/320:55:143
1658199280,1cyclictest25853-21munin-run19:30:013
1658199280,0cyclictest0-21swapper/320:10:093
1657999280,0cyclictest5229-21apt-get22:30:082
1657999280,0cyclictest16134-21apt-get00:20:132
1657599280,28cyclictest0-21swapper/123:20:131
1657599280,0cyclictest0-21swapper/120:25:131
16572992827,0cyclictest7559-21apt-get22:35:130
16572992827,0cyclictest0-21swapper/000:00:010
1657299280,28cyclictest0-21swapper/022:15:020
16581992727,0cyclictest9899-21apt-get22:40:143
16581992727,0cyclictest0-21swapper/322:30:083
16581992727,0cyclictest0-21swapper/300:20:133
16579992727,0cyclictest32343-21apt-get22:15:112
16579992727,0cyclictest2157-21apt-get21:00:182
16579992727,0cyclictest0-21swapper/223:55:132
16579992727,0cyclictest0-21swapper/221:20:152
1657999270,0cyclictest0-21swapper/222:40:142
1657999270,0cyclictest0-21swapper/221:35:112
16575992727,0cyclictest0-21swapper/121:30:081
16575992727,0cyclictest0-21swapper/119:45:161
1657599270,27cyclictest0-21swapper/122:30:081
16572992727,0cyclictest0-21swapper/023:40:130
16572992727,0cyclictest0-21swapper/020:00:140
16572992727,0cyclictest0-21swapper/019:45:170
16572992727,0cyclictest0-21swapper/019:20:170
16572992726,1cyclictest20607-21apt-get20:30:160
16572992725,1cyclictest15537-21sendmail-msp00:20:010
16581992626,0cyclictest0-21swapper/321:35:113
16581992625,1cyclictest0-21swapper/321:20:013
16579992626,0cyclictest0-21swapper/223:50:092
16579992626,0cyclictest0-21swapper/219:45:162
16579992625,0cyclictest4468-21apt-get21:05:122
16579992624,1cyclictest0-21swapper/223:05:012
16575992626,0cyclictest0-21swapper/121:10:161
16575992626,0cyclictest0-21swapper/121:10:161
16575992624,1cyclictest303-21systemd-journal22:40:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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