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2025-03-18 - 05:45
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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 Tue Mar 18, 2025 01:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
257582917163,355sleep024920-21kworker/0:119:05:320
26530991698,16cyclictest5210-21df22:15:180
26530991679,134cyclictest3318-21/usr/sbin/munin19:45:120
26530991615,21cyclictest22539-21apt-get21:12:090
265309916124,118cyclictest1356-21snmpd21:38:170
26530991608,129cyclictest11372-21apt-get20:18:160
265309915946,102cyclictest32408-21runrttasks19:31:090
265309915843,104cyclictest17900-21runrttasks23:10:440
265309915730,106cyclictest0-21swapper/019:17:450
265309915728,111cyclictest1424-21nginx00:23:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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