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2025-11-10 - 22:53
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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 20 highest latencies:
System rackcslot3.osadl.org (updated Fri Nov 07, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt8021-21ssh21:59:540
81780rcu_preempt30584-21ssh21:41:070
81780rcu_preempt11181-21kworker/0:121:49:180
81780rcu_preempt10799-21fw_forwarded_lo00:06:100
81770rcu_preempt5169-21ssh23:56:000
81770rcu_preempt16241-21diskmemload21:53:150
81770rcu_preempt0-21swapper/023:32:080
81760rcu_preempt0-21swapper/022:39:200
89950750irq/17-ehci_hcd945-21usb-storage20:46:181
81740rcu_preempt16241-21diskmemload22:51:070
81710rcu_preempt3-21ksoftirqd/021:35:180
81710rcu_preempt29864-21ssh21:40:400
81710rcu_preempt21458-21ssh22:25:180
81710rcu_preempt20051-21ssh00:24:250
81710rcu_preempt0-21swapper/123:25:331
81710rcu_preempt0-21swapper/122:42:401
81710rcu_preempt0-21swapper/022:11:120
81710rcu_preempt0-21swapper/020:51:080
81710rcu_preempt0-21swapper/019:31:110
81700rcu_preempt9886-21ssh23:03:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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