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2025-11-14 - 06:25
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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 rackbslot6.osadl.org (updated Fri Nov 14, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
686221830,4sleep2277899cyclictest23:34:362
337521570,4sleep2277899cyclictest22:19:452
337521570,4sleep2277899cyclictest22:19:452
3130721480,3sleep1277499cyclictest01:13:201
177391960,4ptp4l401ktimersoftd/320:09:483
276999710,30cyclictest23363-21/usr/sbin/munin20:53:070
276999701,30cyclictest5522-21munin-node20:17:500
276999691,29cyclictest17725-21ssh01:37:170
276999681,31cyclictest32327-21/usr/sbin/munin00:03:120
276999681,31cyclictest32327-21/usr/sbin/munin00:03:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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