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2025-12-05 - 09:35
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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 Dec 05, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/100:35:101
81770rcu_preempt15689-21ssh21:51:580
81730rcu_preempt16748-21python20:35:101
81700rcu_preempt25389-21latency_hist19:04:441
81700rcu_preempt0-21swapper/022:24:310
81700rcu_preempt0-21swapper/021:31:330
81690rcu_preempt5095-21apt-get23:34:570
81690rcu_preempt0-21swapper/021:40:010
81690rcu_preempt0-21swapper/021:18:420
81680rcu_preempt19-21ksoftirqd/121:47:271
81680rcu_preempt0-21swapper/021:59:450
90050660irq/17-ehci_hcd946-21usb-storage22:08:051
81660rcu_preempt0-21swapper/023:32:560
81660rcu_preempt0-21swapper/023:09:010
81650rcu_preempt0-21swapper/122:28:571
81650rcu_preempt0-21swapper/023:27:040
81650rcu_preempt0-21swapper/022:53:230
81650rcu_preempt0-21swapper/022:35:480
81650rcu_preempt0-21swapper/022:15:380
81650rcu_preempt0-21swapper/021:12:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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