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2026-07-04 - 06:39
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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 04, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt19-21ksoftirqd/123:24:341
81760rcu_preempt10304-21switchtime20:40:551
81760rcu_preempt0-21swapper/121:46:181
81760rcu_preempt0-21swapper/019:15:240
81750rcu_preempt15441-21if_wlan000:00:481
81750rcu_preempt0-21swapper/123:10:431
81750rcu_preempt0-21swapper/122:44:541
81740rcu_preempt0-21swapper/122:36:551
89950730irq/17-ehci_hcd945-21usb-storage23:35:451
81730rcu_preempt11351-21ntp_offset20:45:520
81730rcu_preempt10084-1kworker/1:0H21:38:551
81730rcu_preempt0-21swapper/123:33:041
81730rcu_preempt0-21swapper/121:05:591
81720rcu_preempt29463-21gzip00:25:541
81720rcu_preempt24603-21sort19:30:491
81720rcu_preempt0-21swapper/121:22:561
81710rcu_preempt24135-1kworker/1:2H00:14:211
81710rcu_preempt19790-21cat19:10:531
81710rcu_preempt0-21swapper/123:05:421
81710rcu_preempt0-21swapper/121:05:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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