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2026-06-11 - 06:35
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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 Thu Jun 11, 2026 00:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1619799310,30cyclictest23683-21cron20:35:001
1619899300,29cyclictest577-21cron20:55:002
1619899300,29cyclictest30724-21awk20:50:002
1619899300,1cyclictest307-21systemd-journal22:25:012
1619799300,29cyclictest18054-21cron22:40:001
1619999290,28cyclictest0-21swapper/322:10:013
1619999290,28cyclictest0-21swapper/320:35:103
1619999290,28cyclictest0-21swapper/319:25:113
1619999290,28cyclictest0-21swapper/319:20:103
1619899290,28cyclictest16433-21munin-run20:20:022
1619899290,28cyclictest11952-21munin-run23:35:012
1619799290,28cyclictest880-21apt-get00:20:111
1619799290,28cyclictest2442-21perf19:50:001
1619799290,28cyclictest0-21swapper/119:30:111
16196992928,1cyclictest3496-21cron22:10:020
16196992927,1cyclictest0-21swapper/021:10:000
16199992828,0cyclictest0-21swapper/322:25:013
16199992826,1cyclictest307-21systemd-journal23:50:003
1619999280,28cyclictest0-21swapper/320:25:123
1619999280,27cyclictest28914-21apt-get21:55:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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