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2026-04-23 - 23:24
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackeslot4.osadl.org (updated Thu Apr 23, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
758461993127,2cyclictest134-1kworker/1:1H+kblockd09:10:271
75847099262,21cyclictest1008680-21apt-get11:15:123
75845799261,5cyclictest901839-21sed09:30:170
758470992520,3cyclictest911438-21apt-get09:40:123
75847099251,21cyclictest815141-21apt-get08:05:123
75846699252,20cyclictest977800-21apt-get10:45:132
75846199251,22cyclictest855364-21sh08:45:011
75846199251,21cyclictest825319-21apt-get08:15:131
75845799252,3cyclictest998589-21apt-get11:05:120
75845799251,4cyclictest0-21swapper/007:30:160
75845799251,21cyclictest0-21swapper/007:25:120
758470992420,2cyclictest1049211-21apt-get11:55:113
758470992420,2cyclictest1039104-21apt-get11:45:133
75847099241,3cyclictest779264-21apt-get07:30:123
75847099241,22cyclictest937275-21apt-get10:05:123
75847099241,21cyclictest1090275-21awk12:35:003
75846699241,21cyclictest922001-21apt-get09:50:122
75846699240,22cyclictest0-21swapper/212:00:162
758461992421,2cyclictest1038861-21systemd-run11:45:001
75846199241,3cyclictest927114-21apt-get09:55:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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