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2026-06-28 - 00:56
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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 rack7slot8.osadl.org (updated Sat Jun 27, 2026 02:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2354213250,10sleep02352-21df19:05:150
33519915069,32cyclictest1939-21apt-get23:17:240
33519914666,42cyclictest16941-21apt-get00:17:110
33519914566,40cyclictest17848-21ntp_states00:20:460
33519914371,53cyclictest22491-21chrt00:38:140
33519914366,38cyclictest23331-21df22:35:210
33519914267,54cyclictest7912-21/usr/sbin/munin21:35:510
33519914265,36cyclictest29484-21ntpq20:50:360
33519914166,22cyclictest24410-21fw_conntrack20:30:440
33519914067,36cyclictest21659-21ntp_states20:20:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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