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2026-06-12 - 08:26
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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 Fri Jun 12, 2026 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950860irq/17-ehci_hcd945-21usb-storage22:01:340
89950830irq/17-ehci_hcd24586-21ssh22:36:311
81780rcu_preempt0-21swapper/023:09:290
81780rcu_preempt0-21swapper/023:03:090
81770rcu_preempt14398-21df_inode21:18:561
81770rcu_preempt14398-21df_inode21:18:561
89550760irq/17-ehci_hcd11053-21diskmemload21:52:520
81760rcu_preempt2772-21if_eth120:38:571
81760rcu_preempt0-21swapper/022:06:230
89950720irq/17-ehci_hcd28848-21ntp_states22:44:041
81710rcu_preempt7254-21ntp_states22:04:051
81710rcu_preempt27985-21apt-get23:43:541
81700rcu_preempt0-21swapper/119:15:201
89950690irq/17-ehci_hcd0-21swapper/120:18:551
81690rcu_preempt11053-21diskmemload22:59:141
146250690irq/28-eth0-rx-181ktimersoftd/122:12:211
81680rcu_preempt32716-21ssh21:51:431
81680rcu_preempt19704-21apt-get21:28:521
81680rcu_preempt0-21swapper/123:27:581
81670rcu_preempt8771-21ssh23:08:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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