| /* |
| * 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; |
| |
| 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 org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.CharArrayWriter; |
| import java.lang.reflect.Constructor; |
| import java.util.Random; |
| |
| @RunWith(JUnitParamsRunner.class) |
| @LargeTest |
| public class XmlSerializePerfTest { |
| @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| private Object[] getParams() { |
| return new Object[][] { |
| new Object[] {"0.99 0.7 0.7 0.7 0.7 0.7", 854328}, |
| new Object[] {"0.999 0.3 0.3 0.95 0.9 0.9", 854328}, |
| new Object[] {"0.99 0.7 0.7 0.7 0.7 0.7", 312547}, |
| new Object[] {"0.999 0.3 0.3 0.95 0.9 0.9", 312547} |
| }; |
| } |
| |
| double[] mDataset; |
| private Constructor<? extends XmlSerializer> mKxmlConstructor; |
| private Constructor<? extends XmlSerializer> mFastConstructor; |
| |
| private void serializeRandomXml(Constructor<? extends XmlSerializer> ctor, long mSeed) |
| throws Exception { |
| double contChance = mDataset[0]; |
| double levelUpChance = mDataset[1]; |
| double levelDownChance = mDataset[2]; |
| double attributeChance = mDataset[3]; |
| double writeChance1 = mDataset[4]; |
| double writeChance2 = mDataset[5]; |
| |
| XmlSerializer serializer = (XmlSerializer) ctor.newInstance(); |
| |
| CharArrayWriter w = new CharArrayWriter(); |
| serializer.setOutput(w); |
| int level = 0; |
| Random r = new Random(mSeed); |
| char[] toWrite = {'a', 'b', 'c', 'd', 's', 'z'}; |
| serializer.startDocument("UTF-8", true); |
| while (r.nextDouble() < contChance) { |
| while (level > 0 && r.nextDouble() < levelUpChance) { |
| serializer.endTag("aaaaaa", "bbbbbb"); |
| level--; |
| } |
| while (r.nextDouble() < levelDownChance) { |
| serializer.startTag("aaaaaa", "bbbbbb"); |
| level++; |
| } |
| serializer.startTag("aaaaaa", "bbbbbb"); |
| level++; |
| while (r.nextDouble() < attributeChance) { |
| serializer.attribute("aaaaaa", "cccccc", "dddddd"); |
| } |
| serializer.endTag("aaaaaa", "bbbbbb"); |
| level--; |
| while (r.nextDouble() < writeChance1) serializer.text(toWrite, 0, 5); |
| while (r.nextDouble() < writeChance2) serializer.text("Textxtsxtxtxt "); |
| } |
| serializer.endDocument(); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public void setUp(String datasetAsString) throws Exception { |
| mKxmlConstructor = |
| (Constructor) |
| Class.forName("com.android.org.kxml2.io.KXmlSerializer").getConstructor(); |
| mFastConstructor = |
| (Constructor) |
| Class.forName("com.android.internal.util.FastXmlSerializer") |
| .getConstructor(); |
| String[] splitStrings = datasetAsString.split(" "); |
| mDataset = new double[splitStrings.length]; |
| for (int i = 0; i < splitStrings.length; i++) { |
| mDataset[i] = Double.parseDouble(splitStrings[i]); |
| } |
| } |
| |
| private void internalTimeSerializer(Constructor<? extends XmlSerializer> ctor, int seed) |
| throws Exception { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| serializeRandomXml(ctor, seed); |
| } |
| } |
| |
| @Test |
| @Parameters(method = "getParams") |
| public void timeKxml(String datasetAsString, int seed) throws Exception { |
| setUp(datasetAsString); |
| internalTimeSerializer(mKxmlConstructor, seed); |
| } |
| |
| @Test |
| @Parameters(method = "getParams") |
| public void timeFast(String datasetAsString, int seed) throws Exception { |
| setUp(datasetAsString); |
| internalTimeSerializer(mFastConstructor, seed); |
| } |
| } |