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2022-05-28 - 16:05

PowerPC Freescale e5500 @1200 MHz, Linux 4.1.8-rt8+gbd51baffc04e (Profile)

Latency plot of system in rack #4, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rack4slot4.osadl.org (updated Sat May 28, 2022 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2262321040chrt46250irq/120-QMan09:24:361
2262321040chrt46250irq/120-QMan09:24:361
71730rcu_preempt0-21swapper/209:59:372
71730rcu_preempt0-21swapper/209:59:372
71700rcu_preempt0-21swapper/212:16:152
71700rcu_preempt0-21swapper/212:16:152
71700rcu_preempt0-21swapper/212:16:152
71670rcu_preempt0-21swapper/311:26:213
71670rcu_preempt0-21swapper/311:26:213
71620rcu_preempt0-21swapper/109:41:201
71620rcu_preempt0-21swapper/109:41:201
71540rcu_preempt0-21swapper/212:44:052
71540rcu_preempt0-21swapper/212:44:052
71540rcu_preempt0-21swapper/212:44:052
71450rcu_preempt0-21swapper/012:19:500
71450rcu_preempt0-21swapper/012:19:500
71450rcu_preempt0-21swapper/012:19:500
71430rcu_preempt30393-1kworker/2:2H12:34:122
71430rcu_preempt30393-1kworker/2:2H12:34:122
71430rcu_preempt30393-1kworker/2:2H12:34:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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