| /* |
| * Copyright (C) 2018 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.text; |
| |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| |
| import android.support.test.filters.LargeTest; |
| import android.support.test.runner.AndroidJUnit4; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.util.Random; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.TimeUnit; |
| |
| @LargeTest |
| @RunWith(AndroidJUnit4.class) |
| public class StaticLayoutMultithreadPerfTest { |
| private static final int WORD_LENGTH = 9; // Random word has 9 characters. |
| private static final int WORDS_IN_LINE = 8; // Roughly, 8 words in a line. |
| private static final boolean NO_STYLE_TEXT = false; |
| |
| private static TextPaint PAINT = new TextPaint(); |
| private static final int TEXT_WIDTH = WORDS_IN_LINE * WORD_LENGTH * (int) PAINT.getTextSize(); |
| |
| public StaticLayoutMultithreadPerfTest() {} |
| |
| @Rule |
| public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| private CountDownLatch mStartLatch; |
| private AtomicBoolean mThreadState; // True for running, False for stopped. |
| |
| private static final long TIMEOUT_MS = 5000; |
| |
| private Thread[] startBackgroundThread(int numOfThreads) { |
| mStartLatch = new CountDownLatch(numOfThreads); |
| mThreadState = new AtomicBoolean(true); |
| |
| Thread[] threads = new Thread[numOfThreads]; |
| for (int i = 0; i < numOfThreads; ++i) { |
| final int seed = i + 1; |
| threads[i] = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| final TextPerfUtils util = new TextPerfUtils(); |
| util.resetRandom(seed); |
| |
| mStartLatch.countDown(); |
| while (mThreadState.get()) { |
| final CharSequence text = util.nextRandomParagraph( |
| WORD_LENGTH, NO_STYLE_TEXT); |
| StaticLayout.Builder.obtain(text, 0, text.length(), PAINT, TEXT_WIDTH) |
| .build(); |
| } |
| } |
| }); |
| } |
| |
| for (int i = 0; i < numOfThreads; ++i) { |
| threads[i].start(); |
| } |
| |
| try { |
| mStartLatch.await(TIMEOUT_MS, TimeUnit.MILLISECONDS); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| return threads; |
| } |
| |
| private void finishThreads(Thread[] threads) { |
| mThreadState.set(false); |
| for (Thread thread : threads) { |
| try { |
| thread.join(); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| mStartLatch = null; |
| mThreadState = null; |
| } |
| |
| private void runRandomTest(int numOfTotalThreads) { |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| final TextPerfUtils util = new TextPerfUtils(); |
| Thread[] threads = startBackgroundThread(numOfTotalThreads - 1); |
| while (state.keepRunning()) { |
| state.pauseTiming(); |
| final CharSequence text = util.nextRandomParagraph(WORD_LENGTH, NO_STYLE_TEXT); |
| state.resumeTiming(); |
| |
| StaticLayout.Builder.obtain(text, 0, text.length(), PAINT, TEXT_WIDTH) |
| .setHyphenationFrequency(Layout.HYPHENATION_FREQUENCY_NONE) |
| .setBreakStrategy(Layout.BREAK_STRATEGY_SIMPLE) |
| .build(); |
| } |
| finishThreads(threads); |
| } |
| |
| @Test |
| public void testCreate_RandomText_Thread_1() { |
| runRandomTest(1); |
| } |
| |
| @Test |
| public void testCreate_RandomText_Thread_2() { |
| runRandomTest(2); |
| } |
| |
| @Test |
| public void testCreate_RandomText_Thread_4() { |
| runRandomTest(4); |
| } |
| } |