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2026-06-14 - 12:02
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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 Sun Jun 14, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt2192-21snmpd00:22:421
81750rcu_preempt29670-21latency_hist23:58:501
89950740irq/17-ehci_hcd945-21usb-storage00:41:561
81740rcu_preempt31911-21sh22:01:150
81740rcu_preempt26245-21ssh22:50:431
81740rcu_preempt15747-21sh23:32:031
81730rcu_preempt11461-21sort19:29:051
81720rcu_preempt0-21swapper/023:09:190
81710rcu_preempt553-21diskstats23:04:051
81700rcu_preempt12519-21ssh23:25:081
81700rcu_preempt0-21swapper/123:47:471
81700rcu_preempt0-21swapper/121:54:111
81700rcu_preempt0-21swapper/022:14:120
81700rcu_preempt0-21swapper/000:32:150
81690rcu_preempt21736-21ssh21:43:141
81690rcu_preempt0-21swapper/122:08:071
81690rcu_preempt0-21swapper/121:34:171
81690rcu_preempt0-21swapper/021:33:370
81680rcu_preempt24435-21wc23:48:501
81680rcu_preempt15551-21ssh21:31:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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