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2025-09-16 - 09:05
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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 rack4slot1.osadl.org (updated Tue Sep 16, 2025 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1422199557,10cyclictest131rcu_preempt23:28:322
1422199557,10cyclictest131rcu_preempt23:28:322
1421999511,32cyclictest2387-21ssh22:53:320
1421999511,32cyclictest2387-21ssh22:53:320
1422099503,37cyclictest27908-21sendmail-msp20:03:321
1422099503,37cyclictest27908-21sendmail-msp20:03:321
1421999486,27cyclictest38650irq/55-eth023:03:330
1421999486,27cyclictest38650irq/55-eth023:03:330
14221994732,11cyclictest6588-21apt-get20:38:332
14221994732,11cyclictest6588-21apt-get20:38:332
1421999462,40cyclictest29700-21ssh22:08:310
1422199455,10cyclictest131rcu_preempt19:23:322
1422199455,10cyclictest131rcu_preempt19:23:322
14221994517,12cyclictest28499-21ssh22:45:122
14221994517,12cyclictest28499-21ssh22:45:122
14221994515,13cyclictest23902-21ssh21:21:432
14221994515,13cyclictest23902-21ssh21:21:432
14221994515,12cyclictest16861-21sed21:13:232
14221994515,12cyclictest16861-21sed21:13:232
1422199451,34cyclictest3637-21ssh00:13:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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