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2021-10-24 - 00:54

ARMv7 Processor rev 2 (v7l), Linux 4.19.94-rt39 (Profile)

Latency plot of system in rack #7, slot #8
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 rack7slot8 (updated Sun Dec 20, 2020 00:46:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2673523730,6sleep089-21mmcqd/019:05:210
28038991947,47cyclictest12446-21ssh22:43:380
280389919427,13cyclictest7750irq/174-4a1000023:20:030
28038991869,34cyclictest29542-21ssh23:50:200
28038991867,15cyclictest22317-21ls21:30:080
280389918428,16cyclictest29077-21ssh23:05:430
280389917825,25cyclictest29457-21ssh23:50:070
28038991778,13cyclictest17146-21latency_hist22:50:080
280389917730,28cyclictest7750irq/174-4a1000000:04:240
280389917710,13cyclictest15993-21sort00:15:410
28038991768,14cyclictest3373-21ssh23:15:090
280389917537,28cyclictest3150irq/20-4900000021:01:330
28038991749,13cyclictest8141-21ssh00:05:190
280389917437,25cyclictest8250irq/161-mmc022:35:520
280389917434,27cyclictest8250irq/161-mmc023:35:030
280389917418,48cyclictest7750irq/174-4a1000023:40:390
28038991735,26cyclictest15236-21apt-get21:20:040
280389917335,28cyclictest3150irq/20-4900000020:46:250
280389917332,29cyclictest7750irq/174-4a1000021:53:560
280389917321,41cyclictest8182chrt23:55:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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