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2026-06-24 - 14:56
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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 Wed Jun 24, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt14082-21if_eth000:00:000
81770rcu_preempt30251-21apt-get23:29:511
81760rcu_preempt6472-21kernelversion20:09:591
81760rcu_preempt1886-21cat00:39:411
81750rcu_preempt14802-21cpuspeed_turbos21:59:571
81740rcu_preempt28661-21timerwakeupswit23:25:071
81740rcu_preempt27147-21ntp_states00:25:051
81730rcu_preempt31905-21df_abs00:34:561
81730rcu_preempt30783-21ssh22:29:541
81730rcu_preempt22301-21diskmemload22:35:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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