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2026-09-07 - 02:11
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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 Sep 06, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81910rcu_preempt3475-1kworker/0:0H11:04:020
81790rcu_preempt12807-21ntp_states12:11:180
81760rcu_preempt0-21swapper/012:43:450
81750rcu_preempt19751-21cpu12:26:081
81750rcu_preempt0-21swapper/107:16:341
81740rcu_preempt4595-21ntp_offset10:51:171
81740rcu_preempt14318-21df_inode11:11:101
81730rcu_preempt23045-21ps12:31:191
81730rcu_preempt20271-21if_eth109:11:121
81720rcu_preempt17838-21sh11:16:410
81720rcu_preempt17838-21sh11:16:410
81720rcu_preempt0-21swapper/111:31:171
89950710irq/17-ehci_hcd0-21swapper/111:51:361
81710rcu_preempt6982-21users08:16:201
81710rcu_preempt22227-21diskmemload12:38:321
81710rcu_preempt11093-21ssh12:07:540
81710rcu_preempt0-21swapper/009:57:220
81700rcu_preempt7846-1kworker/1:2H07:45:071
81700rcu_preempt29946-21ntp_states11:41:170
81700rcu_preempt18566-21sh12:22:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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