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2025-11-27 - 17:20
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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 Thu Nov 27, 2025 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1992227992824,2cyclictest0-21swapper/311:30:223
199222799281,2cyclictest191rcu_preempt08:45:003
1992225992817,1cyclictest191rcu_preempt11:31:422
199222799271,6cyclictest3471731-21systemd-journal09:15:013
199222799270,25cyclictest3471731-21systemd-journal09:30:013
1992225992722,3cyclictest2204308-21cut10:20:002
199222799261,23cyclictest686-21snmpd11:08:363
199222799261,22cyclictest2242397-21df10:50:133
199222299262,21cyclictest2080643-21apt-get08:35:091
199222299261,21cyclictest2013712-21apt-get07:30:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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