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2026-04-08 - 11:51
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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 10 highest latencies:
System rackcslot3.osadl.org (updated Wed Apr 08, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt0-21swapper/119:12:541
81760rcu_preempt2091-21memory00:10:341
81750rcu_preempt9002-21timerwakeupswit23:20:391
81750rcu_preempt8057-21ps21:15:361
81750rcu_preempt26212-21df23:55:271
81750rcu_preempt26212-21df23:55:271
81750rcu_preempt22939-21munin-run20:10:121
81750rcu_preempt10997-21sort21:20:361
81740rcu_preempt19-21ksoftirqd/121:30:051
89850730irq/17-ehci_hcd945-21usb-storage22:21:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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