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2026-07-12 - 20:11
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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 Sun Jul 12, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81870rcu_preempt19-21ksoftirqd/109:30:311
81860rcu_preempt19-21ksoftirqd/111:55:531
146250800irq/28-eth0-rx-181ktimersoftd/111:38:061
81780rcu_preempt0-21swapper/012:26:170
146550770irq/30-eth0-tx-181ktimersoftd/112:13:181
81760rcu_preempt2192-21snmpd11:26:411
81740rcu_preempt13116-21/usr/sbin/munin11:11:391
81730rcu_preempt9544-21sh10:09:571
81730rcu_preempt9458-21diskmemload12:31:370
81710rcu_preempt9458-21diskmemload09:27:370
81710rcu_preempt9458-21diskmemload09:17:211
81710rcu_preempt3539-21diskmemload09:59:300
81710rcu_preempt23667-21ssh09:38:440
81710rcu_preempt0-21swapper/010:46:130
81710rcu_preempt0-21swapper/010:19:150
81710rcu_preempt0-21swapper/007:46:340
81700rcu_preempt31260-21uname11:41:330
81700rcu_preempt14140-21latency_hist07:26:121
81700rcu_preempt0-21swapper/008:11:360
81680rcu_preempt0-21swapper/110:17:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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