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2026-04-02 - 21:34
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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 Thu Apr 02, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt1750-21if_wlan010:40:161
81760rcu_preempt2482-21cpuspeed_turbos09:40:111
81750rcu_preempt30142-21ssh10:32:090
81750rcu_preempt2138-21snmpd11:53:181
81750rcu_preempt0-21swapper/111:03:531
81740rcu_preempt19839-21munin-node09:10:080
81720rcu_preempt17563-21sh10:09:050
81710rcu_preempt3-21ksoftirqd/011:03:370
81710rcu_preempt0-21swapper/009:43:470
81700rcu_preempt31550-21uname10:35:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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