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/*
* 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.app.ActivityManager;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.AsyncTask;
import android.os.PowerManager;
/**
* An interface for running benchmarks and collecting results. Used so we can have both an
* interactive runner and a non-interactive runner.
*/
interface BenchmarkRunner {
void addBenchmark(CharSequence name, Runnable thunk);
}
interface ResultListener {
/**
* Called when a benchmark result is ready
*
* @param mean The average iteration time in nanoseconds
* @param stdev The standard deviation of iteration times in nanoseconds
*/
void onResult(double mean, double stdev);
}
class SystemServerBenchmarks {
// Time limit to run benchmarks in seconds
public static final int TIME_LIMIT = 5;
static void initializeBenchmarks(Activity parent, BenchmarkRunner benchmarks) {
benchmarks.addBenchmark("Empty", () -> {
});
benchmarks.addBenchmark("CPU Intensive (1 thread)", () -> {
CPUIntensive.doSomeWork(1);
});
benchmarks.addBenchmark("CPU Intensive (2 thread)", () -> {
CPUIntensive.doSomeWork(2);
});
benchmarks.addBenchmark("CPU Intensive (4 thread)", () -> {
CPUIntensive.doSomeWork(4);
});
benchmarks.addBenchmark("CPU Intensive (8 thread)", () -> {
CPUIntensive.doSomeWork(8);
});
PackageManager pm = parent.getPackageManager();
benchmarks.addBenchmark("getInstalledApplications", () -> {
pm.getInstalledApplications(PackageManager.MATCH_SYSTEM_ONLY);
});
benchmarks.addBenchmark("getInstalledPackages", () -> {
pm.getInstalledPackages(PackageManager.GET_ACTIVITIES);
});
benchmarks.addBenchmark("getPackageInfo", () -> {
try {
pm.getPackageInfo("com.android.startop.test", 0);
} catch (NameNotFoundException e) {
throw new RuntimeException(e);
}
});
benchmarks.addBenchmark("getApplicationInfo", () -> {
try {
pm.getApplicationInfo("com.android.startop.test", 0);
} catch (NameNotFoundException e) {
throw new RuntimeException(e);
}
});
try {
ApplicationInfo app = pm.getApplicationInfo("com.android.startop.test", 0);
benchmarks.addBenchmark("getResourcesForApplication", () -> {
try {
pm.getResourcesForApplication(app);
} catch (NameNotFoundException e) {
throw new RuntimeException(e);
}
});
benchmarks.addBenchmark("getPackagesForUid", () -> {
pm.getPackagesForUid(app.uid);
});
} catch (NameNotFoundException e) {
throw new RuntimeException(e);
}
ComponentName component = new ComponentName(parent, parent.getClass());
benchmarks.addBenchmark("getActivityInfo", () -> {
try {
pm.getActivityInfo(component, PackageManager.GET_META_DATA);
} catch (NameNotFoundException e) {
throw new RuntimeException(e);
}
});
benchmarks.addBenchmark("getLaunchIntentForPackage", () -> {
pm.getLaunchIntentForPackage("com.android.startop.test");
});
benchmarks.addBenchmark("getPackageUid", () -> {
try {
pm.getPackageUid("com.android.startop.test", 0);
} catch (NameNotFoundException e) {
throw new RuntimeException(e);
}
});
benchmarks.addBenchmark("checkPermission", () -> {
// Check for the first permission I could find.
pm.checkPermission("android.permission.SEND_SMS", "com.android.startop.test");
});
benchmarks.addBenchmark("checkSignatures", () -> {
// Compare with settings, since settings is on both AOSP and Master builds
pm.checkSignatures("com.android.settings", "com.android.startop.test");
});
Intent intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
benchmarks.addBenchmark("queryBroadcastReceivers", () -> {
pm.queryBroadcastReceivers(intent, 0);
});
benchmarks.addBenchmark("hasSystemFeature", () -> {
pm.hasSystemFeature(PackageManager.FEATURE_CAMERA);
});
benchmarks.addBenchmark("resolveService", () -> {
pm.resolveService(intent, 0);
});
ActivityManager am = (ActivityManager) parent.getSystemService(Context.ACTIVITY_SERVICE);
benchmarks.addBenchmark("getRunningAppProcesses", () -> {
am.getRunningAppProcesses();
});
// We use PendingIntent.getCreatorPackage, since
// getPackageIntentForSender is not public to us, but getCreatorPackage
// is just a thin wrapper around it.
PendingIntent pi = PendingIntent.getActivity(parent, 0, new Intent(), 0);
benchmarks.addBenchmark("getPackageIntentForSender", () -> {
pi.getCreatorPackage();
});
PowerManager pwr = (PowerManager) parent.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pwr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "benchmark tag");
benchmarks.addBenchmark("WakeLock Acquire/Release", () -> {
wl.acquire();
wl.release();
});
}
/**
* A helper method for benchark runners to actually run the benchmark and gather stats
*
* @param thunk The code whose performance we want to measure
* @param reporter What to do with the results
*/
static void runBenchmarkInBackground(Runnable thunk, ResultListener reporter) {
new AsyncTask() {
double resultMean = 0;
double resultStdev = 0;
@Override
protected Object doInBackground(Object... _args) {
long startTime = System.nanoTime();
int count = 0;
// Run benchmark
while (true) {
long elapsed = -System.nanoTime();
thunk.run();
elapsed += System.nanoTime();
count++;
double elapsedVariance = (double) elapsed - resultMean;
resultMean += elapsedVariance / count;
resultStdev += elapsedVariance * ((double) elapsed - resultMean);
if (System.nanoTime() - startTime > TIME_LIMIT * 1e9) {
break;
}
}
resultStdev = Math.sqrt(resultStdev / (count - 1));
return null;
}
@Override
protected void onPostExecute(Object _result) {
reporter.onResult(resultMean, resultStdev);
}
}.execute(new Object());
}
}
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