Merge "Initial system server benchmark activity" (9c06a0f5) · Commits · e / os / android_frameworks_base

startop/apps/test/Android.bp

+1 −0

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		@@ -21,6 +21,7 @@ android_app {
		"src/LayoutInflationActivity.java",
		"src/ComplexLayoutInflationActivity.java",
		"src/FrameLayoutInflationActivity.java",
		"src/SystemServerBenchmarkActivity.java",
		"src/TextViewInflationActivity.java",
		],
		platform_apis: true,

startop/apps/test/AndroidManifest.xml

+13 −0

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		@@ -71,6 +71,19 @@
		<category android:name="android.intent.category.LAUNCHER" />
		</intent-filter>
		</activity>

		<activity
		android:label="SystemServer Benchmark"
		android:name=".SystemServerBenchmarkActivity"
		android:exported="true" >

		<intent-filter>
		<action android:name="android.intent.action.MAIN" />

		<category android:name="android.intent.category.LAUNCHER" />
		</intent-filter>
		</activity>

		</application>

		</manifest>

startop/apps/test/res/layout/system_server_benchmark_page.xml

0 → 100644

+19 −0

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		<?xml version="1.0" encoding="utf-8"?>
		<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
		xmlns:app="http://schemas.android.com/apk/res-auto"
		xmlns:tools="http://schemas.android.com/tools"
		android:layout_width="match_parent"
		android:layout_height="match_parent" >

		<GridLayout
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:columnCount="3"
		android:id="@+id/benchmark_list">

		<TextView android:text="Benchmark"/>
		<TextView android:text="Mean (ms)"/>
		<TextView android:text="Stdev (ms)"/>

		</GridLayout>
		</ScrollView>

startop/apps/test/src/SystemServerBenchmarkActivity.java

0 → 100644

+112 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2019 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.startop.test;

		import android.app.Activity;
		import android.content.Context;
		import android.content.pm.PackageManager;
		import android.os.AsyncTask;
		import android.os.Bundle;
		import android.os.Trace;
		import android.view.LayoutInflater;
		import android.view.View;
		import android.view.ViewGroup;
		import android.widget.Button;
		import android.widget.GridLayout;
		import android.widget.TextView;

		import java.util.Arrays;

		class Benchmark {
		public static final int NUM_ITERATIONS = 1000;

		public Benchmark(ViewGroup parent, CharSequence name, Runnable thunk) {
		Context context = parent.getContext();
		Button button = new Button(context);
		TextView mean = new TextView(context);
		TextView stdev = new TextView(context);

		button.setText(name);
		mean.setText("");
		stdev.setText("");

		button.setOnClickListener((_button) -> {
		mean.setText("Running...");
		stdev.setText("");

		new AsyncTask() {
		double resultMean = 0;
		double resultStdev = 0;

		@Override
		protected Object doInBackground(Object... _args) {
		long[] results = new long[NUM_ITERATIONS];

		// Run benchmark
		for (int i = 0; i < results.length; i++) {
		results[i] = -System.nanoTime();
		thunk.run();
		results[i] += System.nanoTime();
		}

		// Compute mean
		long sum = Arrays.stream(results).sum();
		resultMean = (double) sum / results.length;

		// Compute standard deviation
		double variance = 0;
		for (long i : results) {
		double t = (double) i - resultMean;
		variance += t * t;
		}
		variance /= results.length - 1;

		resultStdev = Math.sqrt(variance);

		return null;
		}

		@Override
		protected void onPostExecute(Object _result) {
		mean.setText(String.format("%.3f", resultMean / 1e6));
		stdev.setText(String.format("%.3f", resultStdev / 1e6));
		}
		}.execute(new Object());
		});

		parent.addView(button);
		parent.addView(mean);
		parent.addView(stdev);
		}
		}

		public class SystemServerBenchmarkActivity extends Activity {
		protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.system_server_benchmark_page);

		GridLayout benchmarkList = findViewById(R.id.benchmark_list);

		new Benchmark(benchmarkList, "Empty", () -> {
		});

		PackageManager pm = getPackageManager();
		new Benchmark(benchmarkList, "getInstalledApplications", () -> {
		pm.getInstalledApplications(PackageManager.MATCH_SYSTEM_ONLY);
		});
		}
		}