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2026-03-10 - 01:35
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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 Mon Mar 09, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811050rcu_preempt28407-21ssh10:04:041
81970rcu_preempt19-21ksoftirqd/111:24:281
81750rcu_preempt0-21swapper/010:24:110
81740rcu_preempt0-21swapper/011:57:360
81720rcu_preempt13321-21apt-get12:39:060
81720rcu_preempt0-21swapper/009:34:040
89850710irq/17-ehci_hcd19-21ksoftirqd/108:44:291
81710rcu_preempt0-21swapper/009:21:100
81710rcu_preempt0-21swapper/007:34:160
81700rcu_preempt1262-21diskmemload11:37:260
81700rcu_preempt0-21swapper/012:09:580
81700rcu_preempt0-21swapper/010:34:200
81690rcu_preempt32484-21ssh11:12:181
81690rcu_preempt0-21swapper/111:54:191
81690rcu_preempt0-21swapper/109:29:141
81690rcu_preempt0-21swapper/107:09:151
81680rcu_preempt30186-21sed08:59:071
81680rcu_preempt0-21swapper/112:31:311
81680rcu_preempt0-21swapper/108:54:111
81680rcu_preempt0-21swapper/012:31:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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