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2026-09-03 - 21:59
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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 Thu Sep 03, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt1556-21ssh10:45:531
81800rcu_preempt31255-21timerandwakeup12:46:091
81800rcu_preempt18498-21sh11:16:361
81760rcu_preempt0-21swapper/110:26:051
81750rcu_preempt29845-21grep09:36:001
81750rcu_preempt16042-21tr09:00:531
81750rcu_preempt0-21swapper/112:34:221
81740rcu_preempt32579-21ntp_kernel_err07:56:000
81740rcu_preempt1915-21sh09:45:371
81740rcu_preempt19-21ksoftirqd/112:16:501
81740rcu_preempt0-21swapper/112:01:471
81730rcu_preempt24595-21cat11:30:391
81730rcu_preempt22690-21python07:16:040
81720rcu_preempt28996-21ssh12:41:260
81720rcu_preempt14949-21ssh11:10:580
146650720irq/31-eth0-tx-3-21ksoftirqd/010:10:570
81710rcu_preempt9263-21sh09:58:260
81710rcu_preempt0-21swapper/012:37:500
81700rcu_preempt0-21swapper/110:58:331
81700rcu_preempt0-21swapper/012:11:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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