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2026-06-21 - 15:41
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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 21, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950720irq/17-ehci_hcd945-21usb-storage09:44:531
81720rcu_preempt25008-21ssh12:01:590
81720rcu_preempt0-21swapper/010:36:420
81720rcu_preempt0-21swapper/008:49:280
81710rcu_preempt17400-21ssh09:46:300
81710rcu_preempt0-21swapper/010:24:490
81690rcu_preempt9596-21diskmemload10:33:070
81690rcu_preempt12596-1kworker/0:1H09:14:000
81690rcu_preempt0-21swapper/009:55:260
81680rcu_preempt32441-21cpuspeed_turbos07:09:400
81680rcu_preempt0-21swapper/012:43:160
81670rcu_preempt6248-21latency_hist07:34:280
81670rcu_preempt1599migration/009:38:230
81670rcu_preempt0-21swapper/011:14:450
81660rcu_preempt4090-21sh10:22:210
81660rcu_preempt0-21swapper/107:10:191
81660rcu_preempt0-21swapper/011:24:430
81660rcu_preempt0-21swapper/010:58:360
81650rcu_preempt19-21ksoftirqd/112:12:401
81650rcu_preempt15969-21ssh11:44:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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