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2026-07-06 - 09:58
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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 20 highest latencies:
System rackcslot3.osadl.org (updated Mon Jul 06, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81950rcu_preempt19390-21ssh23:08:271
81890rcu_preempt32402-21ssh00:30:191
81830rcu_preempt19-21ksoftirqd/100:32:401
81800rcu_preempt19-21ksoftirqd/122:32:021
81800rcu_preempt19-21ksoftirqd/122:09:361
81790rcu_preempt19034-21diskmemload00:40:251
81770rcu_preempt0-21swapper/119:12:191
81760rcu_preempt6559-21ssh23:42:311
81760rcu_preempt23641-21munin-run19:25:401
81760rcu_preempt0-21swapper/021:33:320
81750rcu_preempt3662-21sh22:40:541
81750rcu_preempt26047-21df23:20:531
81750rcu_preempt19-21ksoftirqd/122:35:491
81750rcu_preempt19-21ksoftirqd/121:28:201
81750rcu_preempt0-21swapper/022:40:240
81740rcu_preempt28997-21tail21:31:061
81740rcu_preempt0-21swapper/120:25:591
81730rcu_preempt29070-21ssh00:24:050
146550730irq/30-eth0-tx-0-21swapper/022:10:450
81720rcu_preempt7065-1kworker/0:2H21:53:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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