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2026-07-25 - 09:45
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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 Jul 25, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81860rcu_preempt0-21swapper/119:14:321
81760rcu_preempt10765-21ps21:02:401
81730rcu_preempt29895-1kworker/1:0H21:48:021
81730rcu_preempt23494-21ssh23:31:510
81730rcu_preempt16751-21sh22:19:080
81720rcu_preempt3613-21ssh23:53:400
81720rcu_preempt16290-21ssh00:17:391
81720rcu_preempt0-21swapper/000:32:410
81710rcu_preempt18892-21ssh23:22:371
81710rcu_preempt14103-21kworker/0:223:33:550
81710rcu_preempt13642-21diskmemload22:28:141
81710rcu_preempt0-21swapper/119:57:331
81710rcu_preempt0-21swapper/022:10:240
81710rcu_preempt0-21swapper/021:12:160
81700rcu_preempt13642-21diskmemload00:46:250
81700rcu_preempt13642-21diskmemload00:46:250
81700rcu_preempt0-21swapper/123:09:461
81700rcu_preempt0-21swapper/023:17:350
81700rcu_preempt0-21swapper/019:42:380
81700rcu_preempt0-21swapper/000:11:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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