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2025-11-18 - 20:40
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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 20 highest latencies:
System rack4slot1.osadl.org (updated Tue Nov 18, 2025 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
427721550,4sleep00-21swapper/007:26:010
1346921060,3chrt0-21swapper/309:55:583
1346921060,3chrt0-21swapper/309:55:583
2404521030,3chrt0-21swapper/309:28:453
2404521030,3chrt0-21swapper/309:28:453
1665621010,3sleep30-21swapper/311:21:023
307932770,2sleep229740-21ls07:11:052
31216997537,24cyclictest38850irq/55-eth012:20:500
31216997537,24cyclictest38850irq/55-eth012:20:500
187542710,5sleep217448-21/usr/sbin/munin09:21:052
3121899704,6cyclictest131rcu_preempt10:20:482
125112690,3sleep20-21swapper/209:14:092
125112690,3sleep20-21swapper/209:14:092
84962660,3chrt0-21swapper/312:27:503
84962660,3chrt0-21swapper/312:27:503
101622630,5sleep333-21ksoftirqd/309:10:573
101622630,5sleep333-21ksoftirqd/309:10:573
51802610,3chrt5169-21ssh11:06:062
51802610,3chrt5169-21ssh11:06:062
97432580,3sleep10-21swapper/111:12:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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