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2025-07-15 - 11:53
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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 rackcslot3.osadl.org (updated Tue Jul 15, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt0-21swapper/122:06:241
81690rcu_preempt8992-21fw_forwarded_lo22:36:120
81690rcu_preempt26814-21diskmemload22:01:250
81690rcu_preempt0-21swapper/022:40:550
81690rcu_preempt0-21swapper/020:11:120
141350690irq/31-eth0-tx-181ktimersoftd/100:31:111
81680rcu_preempt0-21swapper/000:36:180
81670rcu_preempt26814-21diskmemload00:03:390
81660rcu_preempt18405-21sh21:52:510
81660rcu_preempt0-21swapper/023:09:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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