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2026-09-07 - 08:58
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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 Mon Sep 07, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146550900irq/30-eth0-tx-19-21ksoftirqd/100:16:511
81790rcu_preempt10739-21df_abs00:36:121
81780rcu_preempt19-21ksoftirqd/121:33:111
81780rcu_preempt10431-21ntpq19:16:190
81770rcu_preempt19-21ksoftirqd/121:58:021
81760rcu_preempt25677-21latency_hist00:00:580
81760rcu_preempt19-21ksoftirqd/122:52:081
81730rcu_preempt2762-21sh00:18:550
81720rcu_preempt28717-21fgrep23:01:240
81710rcu_preempt2192-21snmpd22:48:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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