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Commit aec05a2c authored by Eric Holk's avatar Eric Holk
Browse files

Initial system server benchmark activity 

This adds a simple activity to the Startop Test App for non-scientific
interactive benchmark running for system_server APIs.

Bug: 140743821
Change-Id: I5485152bde4a791035c71d7b3f23e8cff9649292
parent 3570d3af

startop/apps/test/Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -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
Original line number Diff line number Diff line
@@ -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
Original line number Diff line number Diff line 
<?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);

        });

    }

}