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2026-06-13 - 10:11
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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 Jun 13, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81840rcu_preempt1130-21ssh22:27:391
81770rcu_preempt0-21swapper/123:23:381
81760rcu_preempt19-21ksoftirqd/123:43:021
81760rcu_preempt19-21ksoftirqd/100:35:591
81760rcu_preempt19-21ksoftirqd/100:31:181
89950750irq/17-ehci_hcd945-21usb-storage22:56:231
81750rcu_preempt5444-21cpuspeed_turbos19:53:571
81740rcu_preempt0-21swapper/100:24:011
81730rcu_preempt5230-21grep19:53:441
81730rcu_preempt26644-21memory22:14:051
81720rcu_preempt24942-21sh22:10:240
81720rcu_preempt0-21swapper/021:34:420
81710rcu_preempt30300-1kworker/0:2H23:25:190
81710rcu_preempt2180-21ssh22:29:051
81710rcu_preempt0-21swapper/023:34:090
81710rcu_preempt0-21swapper/019:54:070
81700rcu_preempt19-21ksoftirqd/123:44:411
81700rcu_preempt12725-21sshd20:20:090
81700rcu_preempt0-21swapper/021:14:050
81690rcu_preempt19-21ksoftirqd/123:13:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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