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2023-02-06 - 14:03

ARM Broadcom BCM2711 @1500 MHz, Linux 5.10.52-rt47-v7l (Profile)

Latency plot of system in rack #4, slot #1
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 rack4slot1.osadl.org (updated Sun Feb 05, 2023 19:15:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241122350,3sleep30-21swapper/319:12:113
241122350,3sleep30-21swapper/319:12:113
2399799323,20cyclictest0-21swapper/019:12:080
2399799323,20cyclictest0-21swapper/019:12:080
2400099251,17cyclictest24010-21chrt19:12:102
2400099251,17cyclictest24010-21chrt19:12:102
23999991911,6cyclictest24479-21latency19:12:141
23999991911,6cyclictest24479-21latency19:12:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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