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2026-04-04 - 17:19
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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 10 highest latencies:
System rackeslot4.osadl.org (updated Sat Apr 04, 2026 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176735993330,2cyclictest0-21swapper/211:40:162
17673899262,20cyclictest279355-21apt-get08:50:123
17673899261,22cyclictest176942-21apt-get07:10:123
17673599262,3cyclictest254037-21apt-get08:25:112
17673599261,4cyclictest283293-21ntpq08:50:222
17673199262,4cyclictest284385-21apt-get08:55:121
17673899253,20cyclictest499648-21turbostat12:25:013
17673599253,20cyclictest344071-21/usr/sbin/munin09:50:242
17673599251,2cyclictest479620-21apt-get12:05:122
17673599251,2cyclictest0-21swapper/207:30:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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