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2025-10-16 - 05:18
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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 Oct 16, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt0-21swapper/021:32:310
81750rcu_preempt19-21ksoftirqd/121:27:181
81730rcu_preempt10965-21fw_conntrack22:50:070
81720rcu_preempt28323-21sh21:23:410
81710rcu_preempt0-21swapper/019:50:080
81710rcu_preempt0-21swapper/019:15:170
81700rcu_preempt31765-21sh22:29:260
81700rcu_preempt0-21swapper/023:16:490
81690rcu_preempt5007-21sh23:38:550
81690rcu_preempt0-21swapper/021:43:530
81680rcu_preempt8665-21k10sensors20:10:170
81680rcu_preempt0-21swapper/023:51:090
81680rcu_preempt0-21swapper/021:39:330
81670rcu_preempt6208-21ntp_states23:40:120
81660rcu_preempt25185-21diskstats19:10:071
81650rcu_preempt28348-21ssh23:20:571
81650rcu_preempt21377-21munin-run00:09:520
81650rcu_preempt0-21swapper/123:41:011
81650rcu_preempt0-21swapper/122:48:491
81650rcu_preempt0-21swapper/120:45:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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