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Benchmark tensorflow model in Android.
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apply plugin: 'com.android.application' | |
apply plugin: 'kotlin-android' | |
apply plugin: 'kotlin-android-extensions' | |
project.ext.ASSET_DIR = projectDir.toString() + '/assets' | |
android { | |
compileSdkVersion 26 | |
defaultConfig { | |
applicationId "tfexample.myapp.com.myapplication" | |
minSdkVersion 21 | |
targetSdkVersion 26 | |
versionCode 1 | |
versionName "1.0" | |
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" | |
} | |
buildTypes { | |
release { | |
minifyEnabled false | |
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' | |
} | |
} | |
sourceSets { | |
main { | |
assets.srcDirs = [project.ext.ASSET_DIR] | |
} | |
} | |
} | |
dependencies { | |
implementation fileTree(dir: 'libs', include: ['*.jar']) | |
implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version" | |
implementation 'com.android.support:appcompat-v7:26.1.0' | |
implementation 'com.android.support.constraint:constraint-layout:1.0.2' | |
implementation 'org.tensorflow:tensorflow-android:1.4.0' | |
testImplementation 'junit:junit:4.12' | |
androidTestImplementation 'com.android.support.test:runner:1.0.1' | |
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1' | |
} |
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package tfexample.myapp.com.myapplication | |
import android.os.Bundle | |
import android.support.v7.app.AppCompatActivity | |
import android.util.Log | |
import org.tensorflow.contrib.android.TensorFlowInferenceInterface | |
import kotlin.system.measureTimeMillis | |
val modelName = "file:///android_asset/mobile_unet_160_100_100.pb" | |
class MainActivity : AppCompatActivity() { | |
override fun onCreate(savedInstanceState: Bundle?) { | |
super.onCreate(savedInstanceState) | |
setContentView(R.layout.activity_main) | |
measureInference(modelName, 160, 160) | |
} | |
private fun measureInference(modelName: String, height: Long, width: Long) { | |
val inferenceInterface = TensorFlowInferenceInterface(assets, modelName) | |
val inputs = FloatArray((width * height * 3).toInt()) | |
val outputs = FloatArray((width * height).toInt()) | |
// It's for excluding 1st measurement. | |
inferenceInterface.feed("input_1", inputs, 1, height, width, 3) | |
inferenceInterface.run(arrayOf("output_0")) | |
inferenceInterface.fetch("output_0", outputs) | |
val times = (1..10).map { | |
measureTimeMillis { | |
inferenceInterface.feed("input_1", inputs, 1, height, width, 3) | |
inferenceInterface.run(arrayOf("output_0")) | |
inferenceInterface.fetch("output_0", outputs) | |
} | |
} | |
Log.d("MainActivity", times.toString()) | |
Log.d("MainActivity", times.average().toString()) | |
} | |
} |
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