ac51da9c4e
Separate into two activities, as they are unrelated. Bug: none Test: run the applications Change-Id: I390c1351d5e9c3ecdd0b863b7aceac03e735ff58
90 lines
2.8 KiB
Java
90 lines
2.8 KiB
Java
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* A threaded CPU intensive class for use in benchmarks.
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*/
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package com.android.startop.test;
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import android.app.Activity;
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public class CPUIntensiveBenchmarks {
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public static final int ARRAY_SIZE = 30000;
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public static int[][] mArray;
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static class WorkerThread extends Thread {
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int mThreadNumber;
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WorkerThread(int number) {
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mThreadNumber = number;
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}
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public void run() {
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final int arrayLength = mArray[mThreadNumber].length;
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for (int i = 0; i < arrayLength; ++i) {
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mArray[mThreadNumber][i] = i * i;
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}
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for (int i = 0; i < arrayLength; ++i) {
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for (int j = 0; j < arrayLength; ++j) {
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int swap = mArray[mThreadNumber][j];
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mArray[mThreadNumber][j] = mArray[mThreadNumber][(j + i) % arrayLength];
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mArray[mThreadNumber][(j + i) % arrayLength] = swap;
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}
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}
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}
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};
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static void doSomeWork(int threadCount) {
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mArray = new int[threadCount][ARRAY_SIZE];
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WorkerThread[] threads = new WorkerThread[threadCount];
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// Create the threads.
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for (int i = 0; i < threadCount; ++i) {
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threads[i] = new WorkerThread(i);
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}
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// Start the threads.
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for (int i = 0; i < threadCount; ++i) {
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threads[i].start();
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}
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// Join the threads.
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for (int i = 0; i < threadCount; ++i) {
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try {
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threads[i].join();
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} catch (Exception ex) {
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}
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}
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}
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// Time limit to run benchmarks in seconds
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public static final int TIME_LIMIT = 5;
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static void initializeBenchmarks(Activity parent, BenchmarkRunner benchmarks) {
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benchmarks.addBenchmark("Use 1 thread", () -> {
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doSomeWork(1);
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});
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benchmarks.addBenchmark("Use 2 threads", () -> {
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doSomeWork(2);
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});
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benchmarks.addBenchmark("Use 4 threads", () -> {
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doSomeWork(4);
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});
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benchmarks.addBenchmark("Use 8 threads", () -> {
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doSomeWork(8);
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});
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benchmarks.addBenchmark("Use 16 threads", () -> {
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doSomeWork(16);
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});
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}
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}
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