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2026-03-31 - 15:24
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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 10 highest latencies:
System rackcslot3.osadl.org (updated Tue Mar 31, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt18759-21sh07:10:060
81770rcu_preempt20015-21diskstats12:25:081
81760rcu_preempt29633-21ntp_states11:40:171
81740rcu_preempt0-21swapper/107:35:181
81740rcu_preempt0-21swapper/107:10:091
89850710irq/17-ehci_hcd0-21swapper/109:55:261
81710rcu_preempt4313-21apt-get11:55:041
81710rcu_preempt22904-21sshd11:28:011
81710rcu_preempt0-21swapper/110:25:171
81700rcu_preempt0-21swapper/010:05:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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