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2025-10-13 - 09:39
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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 Oct 13, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811190rcu_preempt11450-21ssh23:29:440
81910rcu_preempt3-21ksoftirqd/021:21:430
89950800irq/17-ehci_hcd945-21usb-storage23:41:111
81750rcu_preempt8372-21df_abs22:24:581
81740rcu_preempt21063-21sh22:47:101
81740rcu_preempt16199-21munin-run22:39:441
81730rcu_preempt12067-21if_wlan023:30:051
81720rcu_preempt24221-21processes20:35:091
81720rcu_preempt19444-21sh00:42:051
81710rcu_preempt912-21diskmemload23:15:351
81700rcu_preempt0-21swapper/121:10:081
81690rcu_preempt4240-21ssh22:16:271
89550680irq/17-ehci_hcd2371-21/usr/sbin/munin19:10:031
81680rcu_preempt0-21swapper/123:29:031
81680rcu_preempt0-21swapper/122:20:521
81670rcu_preempt0-21swapper/122:40:041
81670rcu_preempt0-21swapper/120:25:061
81660rcu_preempt912-21diskmemload23:14:011
81660rcu_preempt26661-21ssh23:55:221
81660rcu_preempt0-21swapper/121:48:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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