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在Ubuntu custom kernel上裝perf by compile
Using perf, the Linux Performance Analysis tool on Ubuntu KarmicA lot has been going on with Linux performance counters (now called performance events...
分类:其他好文   时间:2014-05-16 04:06:37    阅读次数:386
Don’t Assume – Per Session Buffers
MySQL has a number of global buffers, i.e. your SGA. There are also a number of per session/thread buffers that combined with other memory usage const...
分类:其他好文   时间:2014-05-15 07:34:17    阅读次数:307
[ACM] hdu 1035 Robot Motion (模拟或DFS)
Robot Motion Problem Description A robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move are laid down in a grid. The...
分类:其他好文   时间:2014-05-15 05:48:40    阅读次数:346
记录开发过程中遇到的2个小bug
1、使用新建线程结合handler来更新UI线程中的 ListView,快速点击“刷新”,会出现下面的错误: ?? The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not mod...
分类:其他好文   时间:2014-05-15 02:30:17    阅读次数:254
继承和组合、抽象类和接口
继承和组合的使用原则:     1、很多资料中提到的一点,如果两个类之间是is-a的关系,那么就使用继承,而如果是has-a的关系就使用组合。        但是这也不是代表is-a是使用继承的绝对理由,有时候为了消除继承关系带来的耦合,使用组合可以更好的实现封装细节。        如果在一个系统中大量应用继承,继承层次深了,那么会给系统的开发和维护带来困难。     2、无论何时,如果...
分类:其他好文   时间:2014-05-15 01:38:59    阅读次数:240
hdu4455之树状数组+DP
Substrings Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1571    Accepted Submission(s): 459 Problem Description XXX has an arra...
分类:其他好文   时间:2014-05-15 01:35:46    阅读次数:338
LeetCode--Linked List Cycle
Linked List Cycle  Total Accepted: 17148 Total Submissions: 49300My Submissions Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra sp...
分类:其他好文   时间:2014-05-15 00:13:50    阅读次数:279
【LeetCode】Linked List Cycle
Linked List CycleGiven a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?做完Linked List Cycle II在做这...
分类:其他好文   时间:2014-05-14 23:30:00    阅读次数:399
Pat(Advanced Level)Practice--1043(Is It a Binary Search Tree)
Pat1043代码题目描述:A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties:The left subtree of a node contain...
分类:其他好文   时间:2014-05-14 22:03:25    阅读次数:487
MongoDB---出现no write has been done on this connection解决方案
出现no write has been done on this connection解决方案...
分类:数据库   时间:2014-05-14 19:42:51    阅读次数:403
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