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2026-07-01 - 02:07
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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 Tue Jun 30, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/009:53:470
81760rcu_preempt0-21swapper/107:13:571
81740rcu_preempt11930-21diskmemload10:40:320
81740rcu_preempt10363-21grep10:10:381
81720rcu_preempt19-21ksoftirqd/111:39:581
81720rcu_preempt17791-21ssh12:28:210
81720rcu_preempt12179-21sh12:17:221
81720rcu_preempt0-21swapper/109:15:271
81720rcu_preempt0-21swapper/012:40:370
81710rcu_preempt13436-21ssh09:16:060
81710rcu_preempt0-21swapper/108:50:381
81710rcu_preempt0-21swapper/008:15:350
81700rcu_preempt9434-21ssh12:11:410
81700rcu_preempt8197-21ssh10:07:010
81700rcu_preempt17792-21ssh11:25:540
81700rcu_preempt12267-1kworker/0:1H09:27:190
81700rcu_preempt12194-21df_abs10:15:280
81700rcu_preempt0-21swapper/112:25:381
81700rcu_preempt0-21swapper/110:50:321
81700rcu_preempt0-21swapper/110:28:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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