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2026-06-23 - 15:50
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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 23, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811040rcu_preempt0-21swapper/110:38:391
89950830irq/17-ehci_hcd19-21ksoftirqd/107:09:581
81750rcu_preempt0-21swapper/009:47:310
146650750irq/31-eth0-tx-20181-1kworker/0:1H10:30:200
146450730irq/29-eth0-rx-18784-21kworker/0:207:09:380
81710rcu_preempt15160-21df_inode09:49:520
81710rcu_preempt0-21swapper/009:54:520
81700rcu_preempt11077-21sh12:43:450
81690rcu_preempt0-21swapper/110:06:081
81690rcu_preempt0-21swapper/107:44:511
81690rcu_preempt0-21swapper/010:01:360
146650690irq/31-eth0-tx-0-21swapper/007:34:420
81680rcu_preempt0-21swapper/111:25:131
81680rcu_preempt0-21swapper/110:51:471
81680rcu_preempt0-21swapper/109:26:211
81680rcu_preempt0-21swapper/011:37:470
81680rcu_preempt0-21swapper/011:14:560
81680rcu_preempt0-21swapper/007:53:400
81670rcu_preempt0-21swapper/112:10:471
81670rcu_preempt0-21swapper/111:37:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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