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2026-07-17 - 01:18
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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 Thu Jul 16, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81890rcu_preempt27018-1kworker/0:2H11:06:060
81790rcu_preempt1187-21modprobe07:11:481
81780rcu_preempt16542-21ssh10:39:010
89950750irq/17-ehci_hcd945-21usb-storage12:36:321
89150740irq/17-ehci_hcd945-21usb-storage12:27:480
81730rcu_preempt1018-21sh12:04:030
81720rcu_preempt26482-21ssh10:01:311
81720rcu_preempt2192-21snmpd07:15:240
81720rcu_preempt0-21swapper/010:32:440
146650710irq/31-eth0-tx-19577-21ssh11:40:380
81700rcu_preempt17131-21sh11:36:431
81700rcu_preempt13213-21sh12:26:090
81700rcu_preempt0-21swapper/112:00:051
81700rcu_preempt0-21swapper/111:46:451
81700rcu_preempt0-21swapper/010:21:030
81700rcu_preempt0-21swapper/009:54:560
81690rcu_preempt13554-21df08:01:481
81690rcu_preempt11088-21sh09:34:321
81690rcu_preempt10588-21sh11:24:370
81690rcu_preempt0-21swapper/110:10:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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