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2026-06-02 - 15:49
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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 Tue Jun 02, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950800irq/17-ehci_hcd9341-21ssh12:02:281
89950770irq/17-ehci_hcd945-21usb-storage07:12:460
89150760irq/17-ehci_hcd945-21usb-storage07:28:480
81740rcu_preempt0-21swapper/107:12:481
81730rcu_preempt2192-21snmpd12:03:081
81730rcu_preempt13274-21switchtime09:08:151
146650730irq/31-eth0-tx-378-21kworker/0:210:08:400
81710rcu_preempt18600-21sh10:19:191
81710rcu_preempt0-21swapper/112:37:521
81710rcu_preempt0-21swapper/111:43:051
81710rcu_preempt0-21swapper/109:33:111
81710rcu_preempt0-21swapper/107:13:061
81710rcu_preempt0-21swapper/011:58:170
81710rcu_preempt0-21swapper/009:21:240
81700rcu_preempt31941-21munin-run08:17:510
81700rcu_preempt19202-21sh09:22:471
81700rcu_preempt0-21swapper/112:08:141
81700rcu_preempt0-21swapper/108:23:101
81700rcu_preempt0-21swapper/010:21:400
81700rcu_preempt0-21swapper/010:17:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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