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2026-07-30 - 11:42
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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 Thu Jul 30, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt13824-21kworker/u4:022:52:561
81780rcu_preempt0-21swapper/120:32:541
81770rcu_preempt29952-21sh21:49:241
81770rcu_preempt10358-21ntp_states22:13:021
81770rcu_preempt0-21swapper/123:31:001
81760rcu_preempt21940-21sh00:36:411
81760rcu_preempt21179-21awk22:33:031
81760rcu_preempt19-21ksoftirqd/100:17:181
81760rcu_preempt0-21swapper/121:25:141
81750rcu_preempt0-21swapper/100:43:071
81740rcu_preempt26221-21df_abs22:42:571
81740rcu_preempt11547-21diskmemload22:48:010
81740rcu_preempt0-21swapper/121:57:541
81730rcu_preempt0-21swapper/122:27:591
81720rcu_preempt11605-21ssh00:16:220
81720rcu_preempt0-21swapper/123:58:021
81710rcu_preempt32688-21ssh21:54:320
81710rcu_preempt23593-21ssh00:38:180
81710rcu_preempt0-21swapper/023:36:060
81710rcu_preempt0-21swapper/022:24:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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