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2025-11-14 - 09:38
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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 rack4slot1.osadl.org (updated Fri Nov 14, 2025 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1687521060,3sleep30-21swapper/323:45:013
1687521060,3sleep30-21swapper/323:45:013
119082990,4sleep30-21swapper/321:53:243
158452970,3sleep20-21swapper/221:57:132
158452970,3sleep20-21swapper/221:57:132
291902940,3chrt0-21swapper/221:36:112
291902940,3chrt0-21swapper/221:36:112
181782920,2chrt18179-21/usr/sbin/munin22:35:472
181782920,2chrt18179-21/usr/sbin/munin22:35:472
17172920,3sleep30-21swapper/300:03:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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