Add Benchmark for PackageManager.getResourcesForApplication
Add the benchmark for anwsering the performance issue.
* the cost of the createContextAsUser
* the comparsion between *AsUser and createContextAsUser
Test: atest CorePerfTests:android.content.pm.PackageManagerBenchmark
Bug: 171370490
Change-Id: I7da6d4127520c1132c6050472a0c1ba462ab03d3
diff --git a/apct-tests/perftests/core/src/android/content/pm/PackageManagerBenchmark.java b/apct-tests/perftests/core/src/android/content/pm/PackageManagerBenchmark.java
new file mode 100644
index 0000000..a82fab4
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/content/pm/PackageManagerBenchmark.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2020 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 android.content.pm;
+
+import android.content.Context;
+import android.os.UserHandle;
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+public class PackageManagerBenchmark {
+ @Rule
+ public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+ @Test
+ public void createUserContextBenchmark() {
+ Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();
+ final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+
+ while (state.keepRunning()) {
+ context.createContextAsUser(UserHandle.SYSTEM, /* flags */ 0);
+ }
+ }
+
+ @Test
+ public void getResourcesForApplication_byStarAsUser()
+ throws PackageManager.NameNotFoundException {
+ Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();
+ final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+
+ while (state.keepRunning()) {
+ context.getPackageManager().getResourcesForApplicationAsUser(context.getPackageName(),
+ UserHandle.USER_SYSTEM);
+ }
+ }
+
+ @Test
+ public void getResourcesApplication_byCreateContextAsUser()
+ throws PackageManager.NameNotFoundException {
+ Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();
+ final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+
+ while (state.keepRunning()) {
+ context.createContextAsUser(UserHandle.SYSTEM, /* flags */ 0).getPackageManager()
+ .getResourcesForApplication(context.getPackageName());
+ }
+ }
+}