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2025-10-25 - 10:29
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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 rackcslot3.osadl.org (updated Sat Oct 25, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950940irq/17-ehci_hcd945-21usb-storage19:11:320
81800rcu_preempt28658-21ssh00:36:050
81770rcu_preempt19-21ksoftirqd/100:31:311
81770rcu_preempt0-21swapper/121:10:391
81760rcu_preempt3-21ksoftirqd/023:49:050
81760rcu_preempt19-21ksoftirqd/123:00:551
81750rcu_preempt19-21ksoftirqd/123:45:221
81750rcu_preempt19-21ksoftirqd/122:48:331
81730rcu_preempt9408-21ssh23:00:300
81730rcu_preempt19855-21ssh22:20:050
89950720irq/17-ehci_hcd30808-21/usr/sbin/munin22:40:361
81720rcu_preempt0-21swapper/020:40:340
141050720irq/28-eth0-rx-7352-21kworker/1:019:12:021
89950710irq/17-ehci_hcd945-21usb-storage00:16:351
81710rcu_preempt0-21swapper/022:43:500
81710rcu_preempt0-21swapper/000:24:500
81700rcu_preempt0-21swapper/023:05:400
81700rcu_preempt0-21swapper/022:49:520
81700rcu_preempt0-21swapper/022:00:420
81700rcu_preempt0-21swapper/021:20:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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