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2026-09-15 - 15:45
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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 Sep 14, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811030rcu_preempt21004-21ssh00:41:190
81860rcu_preempt15556-21ssh00:29:481
81830rcu_preempt19-21ksoftirqd/121:23:571
81760rcu_preempt14071-21ntp_states22:16:580
81760rcu_preempt0-21swapper/120:01:501
89950750irq/17-ehci_hcd22757-21ssh00:43:220
81750rcu_preempt30270-21sh21:46:190
81750rcu_preempt30270-21sh21:46:190
81750rcu_preempt25984-21munin-run23:46:330
81720rcu_preempt0-21swapper/121:33:151
81710rcu_preempt18994-21processes19:16:551
81710rcu_preempt0-21swapper/023:38:000
81700rcu_preempt0-21swapper/022:51:290
81700rcu_preempt0-21swapper/020:46:320
81700rcu_preempt0-21swapper/000:02:040
81690rcu_preempt27517-21sh23:47:500
81690rcu_preempt25725-21sh22:41:150
81690rcu_preempt20457-21timerandwakeup19:22:000
81680rcu_preempt17325-21diskmemload00:22:330
81670rcu_preempt2735-21kernelversion20:21:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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