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2026-08-23 - 08:59
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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 Aug 23, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81880rcu_preempt13308-21ssh21:49:551
81780rcu_preempt0-21swapper/000:03:590
81760rcu_preempt0-21swapper/123:35:491
81740rcu_preempt28799-21diskstats22:19:571
81730rcu_preempt19-21ksoftirqd/123:54:291
81720rcu_preempt20098-21ssh22:02:390
81720rcu_preempt0-21swapper/021:09:560
81710rcu_preempt19-21ksoftirqd/123:01:321
89550700irq/17-ehci_hcd24491-21dpkg00:19:560
81700rcu_preempt0-21swapper/020:19:590
146650700irq/31-eth0-tx-0-21swapper/000:31:450
81690rcu_preempt0-21swapper/023:32:050
81690rcu_preempt0-21swapper/023:01:210
81690rcu_preempt0-21swapper/022:14:530
81690rcu_preempt0-21swapper/021:24:590
81670rcu_preempt32294-21ssh00:34:590
81670rcu_preempt32294-21ssh00:34:590
81670rcu_preempt31519-21munin-run19:19:401
81670rcu_preempt2192-21snmpd19:16:240
81670rcu_preempt0-21swapper/023:39:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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