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2022-10-04 - 09:18

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 Tue Oct 04, 2022 00:45:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71490rcu_preempt0-21swapper/123:32:341
71490rcu_preempt0-21swapper/123:32:341
71480rcu_preempt0-21swapper/223:27:162
71480rcu_preempt0-21swapper/223:27:162
71470rcu_preempt0-21swapper/100:08:051
71470rcu_preempt0-21swapper/100:08:051
71460rcu_preempt0-21swapper/021:42:080
71460rcu_preempt0-21swapper/021:42:080
46050440irq/122-QManpo0-210
46050440irq/122-QManpo0-210
71430rcu_preempt0-21swapper/123:56:081
71430rcu_preempt0-21swapper/123:56:081
71430rcu_preempt0-21swapper/100:41:261
71430rcu_preempt0-21swapper/100:41:261
46050430irq/122-QManpo0-210
46050430irq/122-QManpo0-210
71410rcu_preempt0-21swapper/023:36:290
71410rcu_preempt0-21swapper/023:36:290
46050410irq/122-QManpo0-210
46050410irq/122-QManpo0-210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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