diff options
Diffstat (limited to 'startop/apps/test/src/SystemServerBenchmarks.java')
-rw-r--r-- | startop/apps/test/src/SystemServerBenchmarks.java | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/startop/apps/test/src/SystemServerBenchmarks.java b/startop/apps/test/src/SystemServerBenchmarks.java new file mode 100644 index 000000000000..818f1788335e --- /dev/null +++ b/startop/apps/test/src/SystemServerBenchmarks.java @@ -0,0 +1,205 @@ +/* + * 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.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; + +/** + * 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(BenchmarkRunner benchmarks, Activity parent) { + 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(); + }); + } + + /** + * 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()); + } +} |