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2025-11-20 - 07:40
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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 Thu Nov 20, 2025 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3861231432,240sleep01356-21snmpd19:08:160
41319916233,89cyclictest29375-21if_eth022:55:290
4131991617,137cyclictest14328-21grep00:05:180
41319916028,111cyclictest9641-21/usr/sbin/munin21:40:150
4131991599,109cyclictest4614-21ntp_states19:10:450
41319915941,106cyclictest26889-21runrttasks20:39:420
41319915911,128cyclictest1356-21snmpd23:53:170
4131991587,92cyclictest12002-21apt-get21:52:100
41319915826,112cyclictest1424-21nginx00:24:160
41319915822,118cyclictest22132-21sshd22:28:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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