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2026-04-11 - 17:55
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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 Sat Apr 11, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810rcu_preempt23876-21sh12:40:540
81810rcu_preempt14532-21ps07:10:431
81710rcu_preempt22697-21apt-get10:35:340
81710rcu_preempt12822-21diskmemload10:45:110
81710rcu_preempt0-21swapper/010:15:380
81710rcu_preempt0-21swapper/009:29:000
81700rcu_preempt10576-21ssh12:15:450
81700rcu_preempt0-21swapper/110:50:401
81700rcu_preempt0-21swapper/110:05:371
81690rcu_preempt7751-21sh11:08:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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