zhuyifan2013

/**
 * VM options: -verbose:gc -Xms:20M -Xms20M -Xmn10M -XX:+PrintGCDetails -XX:PretenureSizeThreshold=3145728
 */
public class MemoryAllocateOld {

    private static final int _1mb = 1024 * 1024;

    public static void main(String[] args) {
        byte[] alloc1, alloc2, alloc3, alloc4;
        alloc1 = new byte[_1mb / 4];

zhuyifan2013

/**
 * VM options: -verbose:gc -Xms:20M -Xms20M -Xmn10M -XX:+PrintGCDetails -XX:PretenureSizeThreshold=3145728
 */
public class MemoryAllocateBigObject {

    private static final int _1mb = 1024 * 1024;

    public static void main(String[] args) {
        byte[] alloc1, alloc2, alloc3, alloc4;
        alloc1 = new byte[4 * _1mb];

zhuyifan2013

/**
 * VM options: -verbose:gc -Xms:20M -Xms20M -Xmn10M -XX:+PrintGCDetails
 */
public class MemoryAllocate {

    private static final int _1mb = 1024 * 1024;

    public static void main(String[] args) {
        byte[] alloc1, alloc2, alloc3, alloc4;
        alloc1 = new byte[2 * _1mb];

zhuyifan2013

import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;

import java.lang.reflect.Method;

/**
 * VM options: -XX:MaxMetaspaceSize=10m
 */
public class MethodAreaError {

zhuyifan2013

/**
 * VM options: -Xss128k
 */
public class StackOF {

    private static int stackCount = 0;

    private static void callMyMethod() {
        stackCount++;
        callMyMethod();

zhuyifan2013

import java.util.ArrayList;
import java.util.List;

/**
 * VM options: -Xms2m -Xms2m -XX:+HeapDumpOnOutOfMemoryError
 */
public class HeapOOM {

    static class EObject{
        private byte[] myBytes = new byte[200*1024];

zhuyifan2013

public class MemoryAllocate {

    private static final int _1mb = 1024*1024;

    public static void main(String[] args) {
        byte[] alloc1, alloc2, alloc3, alloc4;
        alloc1 = new byte[2*_1mb];
        alloc2 = new byte[2*_1mb];
        alloc3 = new byte[2*_1mb];
        alloc3 = new byte[4*_1mb];

zhuyifan2013

var readline = require('readline'),
    fs = require('fs');

var LinkMap = function(filePath) {
	this.files = []
	this.filePath = filePath
}

LinkMap.prototype = {
	start: function(cb) {

zhuyifan2013

/**
 * leetcode_376_wiggle_sequence
 * <p>
 * 基本思路：
 * <p>
 * 首先命名两个单调序列：
 * Growing Sequence:序列一直在变大
 * Declining Sequence：序列一直在变小
 * <p>
 * 那么原始字符串中的最长 wiggle sequence 一定满足如下形式：

zhuyifan2013

//
//  MyGLView.m
//  OpenGL
//
//  Created by Yifan on 2017/4/12.
//  Copyright © 2017年 Yifan. All rights reserved.
//

#import "MyGLView.h"