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2026-09-12 - 16:54
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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 Sat Sep 12, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt1752-21sendmail_mailqu09:06:491
81760rcu_preempt0-21swapper/107:18:511
81740rcu_preempt14890-21kernelversion07:51:441
81730rcu_preempt21481-21sed09:51:511
81720rcu_preempt0-21swapper/108:11:431
81710rcu_preempt25763-21ssh12:09:330
81710rcu_preempt0-21swapper/108:31:411
81710rcu_preempt0-21swapper/012:03:030
81710rcu_preempt0-21swapper/008:11:450
81700rcu_preempt6094-21ssh09:22:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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