| /* |
| * 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.util; |
| |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| |
| import androidx.test.filters.LargeTest; |
| |
| import dalvik.system.VMRuntime; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| import java.nio.charset.StandardCharsets; |
| import java.util.Arrays; |
| import java.util.Collection; |
| |
| @LargeTest |
| @RunWith(Parameterized.class) |
| public class CharsetUtilsPerfTest { |
| @Rule |
| public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| @Parameterized.Parameter(0) |
| public String mName; |
| @Parameterized.Parameter(1) |
| public String mValue; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static Collection<Object[]> getParameters() { |
| return Arrays.asList(new Object[][] { |
| { "simple", "com.example.typical_package_name" }, |
| { "complex", "從不喜歡孤單一個 - 蘇永康/吳雨霏" }, |
| }); |
| } |
| |
| @Test |
| public void timeUpstream() { |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| mValue.getBytes(StandardCharsets.UTF_8); |
| } |
| } |
| |
| /** |
| * Measure performance of writing into a small buffer where bounds checking |
| * requires careful measurement of encoded size. |
| */ |
| @Test |
| public void timeLocal_SmallBuffer() { |
| final byte[] dest = (byte[]) VMRuntime.getRuntime().newNonMovableArray(byte.class, 64); |
| final long destPtr = VMRuntime.getRuntime().addressOf(dest); |
| |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| CharsetUtils.toModifiedUtf8Bytes(mValue, destPtr, 0, dest.length); |
| } |
| } |
| |
| /** |
| * Measure performance of writing into a large buffer where bounds checking |
| * only needs a simple worst-case 4-bytes-per-char check. |
| */ |
| @Test |
| public void timeLocal_LargeBuffer() { |
| final byte[] dest = (byte[]) VMRuntime.getRuntime().newNonMovableArray(byte.class, 1024); |
| final long destPtr = VMRuntime.getRuntime().addressOf(dest); |
| |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| CharsetUtils.toModifiedUtf8Bytes(mValue, destPtr, 0, dest.length); |
| } |
| } |
| } |