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stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 2.0,2.0;" x1="332.5" x2="568" y1="456.0234" y2="456.0234"/><polygon fill="#A80036" points="685,481.0234,695,485.0234,685,489.0234,689,485.0234" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="327.5" x2="691" y1="485.0234" y2="485.0234"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="98" x="334.5" y="480.0903">EventRecord2()</text><polygon fill="#A80036" points="100.5,552.1563,90.5,556.1563,100.5,560.1563,96.5,556.1563" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="94.5" x2="568" y1="556.1563" y2="556.1563"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="333" x="106.5" y="551.2231">ethosu_inference_end(inference data, driver) [weak]</text><polygon fill="#A80036" points="810,581.2891,820,585.2891,810,589.2891,814,585.2891" style="stroke: #A80036; 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stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 2.0,2.0;" x1="332.5" x2="568" y1="657.6875" y2="657.6875"/><polygon fill="#A80036" points="685,682.6875,695,686.6875,685,690.6875,689,686.6875" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="327.5" x2="691" y1="686.6875" y2="686.6875"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="98" x="334.5" y="681.7544">EventRecord2()</text><polygon fill="#A80036" points="315.5,711.8203,325.5,715.8203,315.5,719.8203,319.5,715.8203" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="89.5" x2="321.5" y1="715.8203" y2="715.8203"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="162" x="96.5" y="710.8872">ethosu_monitor.release()</text><polygon fill="#A80036" points="557,740.9531,567,744.9531,557,748.9531,561,744.9531" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="327.5" x2="563" y1="744.9531" y2="744.9531"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="86" x="334.5" y="740.02">'Disable PMU'</text><polygon fill="#A80036" points="557,755.0859,567,759.0859,557,763.0859,561,759.0859" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 2.0,2.0;" x1="84.5" x2="563" y1="759.0859" y2="759.0859"/><!--
@startuml
skinparam backgroundColor #FEFEFE

box "Application" #Orange
participant "Application" as app
end box

box "PMU monitor" #Orange
participant "PMU monitor" as pmumon
end box

box "Tensorflow" #LightGreen
participant "TFLu" as tflu
end box

box "Ethos-U" #LightBlue
participant "Ethos-U driver" as driver
end box

box "EventRecorder" #LightBlue
participant EventRecorder as event
end box

box "Timer source"
participant "Timer source" as timer
end box

app -> event: EventRecorderInitialize()

app -> tflu: Invoke()
tflu -> driver: ethosu_invoke()

driver -> app ++: ethosu_inference_begin(inference data, driver) [weak]
app -> pmumon: ethosu_monitor.configure()
pmumon -> driver: 'Configure PMU'
pmumon -> timer: Enable timer events
return

group While the Ethos-U custom op is executing
group Recurrent: PMU-monitor log events
  ...
  timer -> app++: Timer event
  app -> pmumon: ethosu_monitor.monitorSample()
  pmumon -> driver: 'Sample PMU registers'
  driver - -> pmumon
  pmumon -> event : EventRecord2()
...
end
end

driver -> app++: ethosu_inference_end(inference data, driver) [weak]
app -> timer: 'Disable timer events'
app -> pmumon: ethosu_monitor.monitorSample()
pmumon -> driver: 'Sample PMU registers'
driver - -> pmumon
pmumon -> event : EventRecord2()
app -> pmumon: ethosu_monitor.release()
pmumon -> driver: 'Disable PMU'
return

@enduml

PlantUML version 1.2017.15(Mon Jul 03 18:45:34 CEST 2017)
(GPL source distribution)
Java Runtime: OpenJDK Runtime Environment
JVM: OpenJDK 64-Bit Server VM
Java Version: 11.0.10+9-Ubuntu-0ubuntu1.18.04
Operating System: Linux
OS Version: 4.15.0-139-generic
Default Encoding: UTF-8
Language: en
Country: US
--></g></svg>