How many bytes do pointers take up? on 16 bit systems take up 2 bytes on 32 bit systems take up 4 bytes on 64 bit systems take up 8 bytes…

When data is stored on disk based storage devices, it is stored as blocks of data. These blocks are accessed in their entirety, making them the atomic disk access operation. Disk blocks are structured in much the same way as linked lists; both contai…

写代码之际突然想起了pc-lint这个"古董级"的代码静态分析工具;   下午机房的服务器歇菜了,没法调试游戏,刚好抽出时间来研究一下pc-lint集成在SourceInsight中; 当然百度上也有许多集成的方法,但是经常有某些错误,导致进程无法lint的正常执行; 分3块部分来讲,先说第一块: 一:安装pclint和SourceInsight 安装pclint: 上http://download.csdn.net/detail/u012329294/8280039   或者直接百度…

Trie,又经常叫前缀树,字典树等等.它有很多变种,如后缀树,Radix Tree/Trie,PATRICIA tree,以及bitwise版本的crit-bit tree.当然很多名字的意义其实有交叉. 定义 在计算机科学中,trie,又称前缀树或字典树,是一种有序树,用于保存关联数组,其中的键通常是字符串.与二叉查找树不同,键不是直接保存在节点中,而是由节点在树中的位置决定.一个节点的所有子孙都有相同的前缀,也就是这个节点对应的字符串,而根节点对应空字符串.一般情况下,不是所有的节点都有对应…

问题的开始 我司某产品线有这么一个神奇接口 (https://host/path/customQuery) 该接口在预发或线上缓存正常的情况下TTFB为150ms左右(可以认为服务处理时间差不多就是TTFB),不过相比150ms的TTFB,显然数据资源下载时间过长的问题会更引人注意需要100ms左右(当然这也是网络条优秀的情况下,网络一般的话这个下载时间会更夸张)customQuery请求一次请求的数据响应大概为2.7MB, 压缩后也有超过300KB下载时间过长看起来就是因为这个响应实体过大了(…

该文介绍了如何使用指针中一些未使用的位来隐藏一些数据. When we write C code, pointers are everywhere. We can make a little extra use of pointers and sneak in some extra information in them. To pull this trick off, we exploit the natural alignment of data in memory. Data in mem…

http://www.36dsj.com/archives/33650 http://flink.apache.org/news/2015/05/11/Juggling-with-Bits-and-Bytes.html http://www.bigsynapse.com/addressing-big-data-performance ,addressing-big-data-performance   第一篇描述,当前JVM存在的问题, 1. Java对象开销 Java对象的存储密度相对偏低,对…

原地址 http://www.cplusplus.com/doc/tutorial/pointers/ Pointers In earlier chapters, variables have been explained as locations in the computer's memory which can be accessed by their identifier (their name). This way, the program does not need to care…

Pointers are the heart and soul of a programming language. The only reason why the Cprogramming language is so popular amongst programmers is because of its concept ofpointers. Even C#, grudgingly, supports the concept of pointers. A pointer value is…

The basic purpose of developing a C programming tutorial for this website – CircuitsToday – is to make it useful for people who wish to work with embedded systems. Really good C programming skill is an essential to work with embedded systems and “Poi…