| /* |
| * Copyright (C) 2022 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.libcore.regression; |
| |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| import android.test.suitebuilder.annotation.LargeTest; |
| |
| import junitparams.JUnitParamsRunner; |
| import junitparams.Parameters; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| |
| @RunWith(JUnitParamsRunner.class) |
| @LargeTest |
| public class CharsetPerfTest { |
| @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| public static Collection<Object[]> getData() { |
| return Arrays.asList( |
| new Object[][] { |
| {1, "UTF-16"}, |
| {1, "UTF-8"}, |
| {1, "UTF8"}, |
| {1, "ISO-8859-1"}, |
| {1, "8859_1"}, |
| {1, "ISO-8859-2"}, |
| {1, "8859_2"}, |
| {1, "US-ASCII"}, |
| {1, "ASCII"}, |
| {10, "UTF-16"}, |
| {10, "UTF-8"}, |
| {10, "UTF8"}, |
| {10, "ISO-8859-1"}, |
| {10, "8859_1"}, |
| {10, "ISO-8859-2"}, |
| {10, "8859_2"}, |
| {10, "US-ASCII"}, |
| {10, "ASCII"}, |
| {100, "UTF-16"}, |
| {100, "UTF-8"}, |
| {100, "UTF8"}, |
| {100, "ISO-8859-1"}, |
| {100, "8859_1"}, |
| {100, "ISO-8859-2"}, |
| {100, "8859_2"}, |
| {100, "US-ASCII"}, |
| {100, "ASCII"}, |
| {1000, "UTF-16"}, |
| {1000, "UTF-8"}, |
| {1000, "UTF8"}, |
| {1000, "ISO-8859-1"}, |
| {1000, "8859_1"}, |
| {1000, "ISO-8859-2"}, |
| {1000, "8859_2"}, |
| {1000, "US-ASCII"}, |
| {1000, "ASCII"}, |
| {10000, "UTF-16"}, |
| {10000, "UTF-8"}, |
| {10000, "UTF8"}, |
| {10000, "ISO-8859-1"}, |
| {10000, "8859_1"}, |
| {10000, "ISO-8859-2"}, |
| {10000, "8859_2"}, |
| {10000, "US-ASCII"}, |
| {10000, "ASCII"}, |
| }); |
| } |
| |
| @Test |
| @Parameters(method = "getData") |
| public void time_new_String_BString(int length, String name) throws Exception { |
| byte[] bytes = makeBytes(makeString(length)); |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| new String(bytes, name); |
| } |
| } |
| |
| @Test |
| @Parameters(method = "getData") |
| public void time_new_String_BII(int length, String name) throws Exception { |
| byte[] bytes = makeBytes(makeString(length)); |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| new String(bytes, 0, bytes.length); |
| } |
| } |
| |
| @Test |
| @Parameters(method = "getData") |
| public void time_new_String_BIIString(int length, String name) throws Exception { |
| byte[] bytes = makeBytes(makeString(length)); |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| new String(bytes, 0, bytes.length, name); |
| } |
| } |
| |
| @Test |
| @Parameters(method = "getData") |
| public void time_String_getBytes(int length, String name) throws Exception { |
| String string = makeString(length); |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| string.getBytes(name); |
| } |
| } |
| |
| private static String makeString(int length) { |
| StringBuilder result = new StringBuilder(length); |
| for (int i = 0; i < length; ++i) { |
| result.append('A' + (i % 26)); |
| } |
| return result.toString(); |
| } |
| |
| private static byte[] makeBytes(String s) { |
| try { |
| return s.getBytes("US-ASCII"); |
| } catch (Exception ex) { |
| throw new RuntimeException(ex); |
| } |
| } |
| } |