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2026-08-29 - 17:30
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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 Aug 29, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/107:16:581
81720rcu_preempt31126-1kworker/1:2H10:26:431
81720rcu_preempt0-21swapper/109:50:291
81710rcu_preempt0-21swapper/110:30:291
81710rcu_preempt0-21swapper/012:17:490
81710rcu_preempt0-21swapper/009:50:360
81710rcu_preempt0-21swapper/008:45:260
81700rcu_preempt6433-21diskmemload11:45:581
81700rcu_preempt0-21swapper/112:01:561
81700rcu_preempt0-21swapper/111:50:391
81700rcu_preempt0-21swapper/110:42:271
81700rcu_preempt0-21swapper/010:19:070
89950690irq/17-ehci_hcd945-21usb-storage08:01:001
81690rcu_preempt15357-1kworker/0:0H12:03:340
81690rcu_preempt0-21swapper/111:39:161
81690rcu_preempt0-21swapper/110:45:161
81690rcu_preempt0-21swapper/110:11:101
81690rcu_preempt0-21swapper/109:31:001
81680rcu_preempt668-21/usr/sbin/munin11:15:301
81680rcu_preempt5571-21munin-run11:25:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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