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2019-07-17 - 02:51

ARMv7 Processor rev 10 (v7l), Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #b, slot #7
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 rackbslot7.osadl.org (updated Wed Jul 17, 2019 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1958122570,12sleep319578-21latency_hist19:09:593
19221210521,25sleep20-21swapper/219:06:052
216942960,5sleep10-21swapper/123:24:591
192342899,64sleep10-21swapper/119:06:121
1921428745,26sleep00-21swapper/019:05:590
1977999819,9cyclictest13850irq/63-2188000.22:32:281
1978599779,40cyclictest0-21swapper/221:40:262
50672740,4sleep10-21swapper/121:20:001
50672740,4sleep10-21swapper/121:20:001
19779996717,33cyclictest0-21swapper/121:45:241
19779996717,33cyclictest0-21swapper/121:45:241
19779996410,38cyclictest0-21swapper/121:40:261
19775996218,22cyclictest0-21swapper/022:06:210
1978599617,32cyclictest30-21ksoftirqd/223:50:262
19785996111,36cyclictest0-21swapper/200:05:062
1977999583,29cyclictest760-21runrttasks19:50:311
1977599587,28cyclictest0-21swapper/022:50:010
1977999579,37cyclictest0-21swapper/123:26:491
1977599578,40cyclictest15602-21http22:40:190
1977599578,40cyclictest15602-21http22:40:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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