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ulimit设置句柄数
这几天在做一个性能测试,写了一个模拟发送http的程序。模拟100并发的情况下,随机发http get的请求。放到服务器上运行一段时间抛出Too many open files的异常。 这几天在做一个性能测试,写了一个模拟发送http的程序。模拟100并发的情况下,随机发http get的请求。放....
分类:其他好文   时间:2014-12-16 16:54:43    阅读次数:251
MyBatis Tutorial – CRUD Operations and Mapping Relationships – Part 1---- reference
http://www.javacodegeeks.com/2012/11/mybatis-tutorial-crud-operations-and-mapping-relationships-part-1.htmlCRUD OperationsMyBatis is an SQL Mapper too...
分类:移动开发   时间:2014-12-16 16:36:48    阅读次数:172
ip_append_data
/* ?*????ip_append_data()?and?ip_append_page()?can?make?one?large?IP?datagram ?*????from?many?pieces?of?data.?Each?pieces?will?be?holded?on?the?socket ?*????until...
分类:移动开发   时间:2014-12-16 11:57:52    阅读次数:268
poj3207 Ikki's Story IV - Panda's Trick
Descriptionliympanda, one of Ikki’s friend, likes playing games with Ikki. Today after minesweeping with Ikki and winning so many times, he is tired o...
分类:其他好文   时间:2014-12-15 23:15:31    阅读次数:287
用python的BeautifulSoup分析html
序言 之前用python爬取网页的时候,一直用的是regex或者自带的库sgmllib里的SGMLParser。但是遇到复杂一点的情况时,SGMLParser往往就不那么给力了!(哈,难道说我 too native了?毕竟beautifulSoup是继承sgmlparser的么~)所以,我寻寻觅觅....
分类:编程语言   时间:2014-12-15 16:46:54    阅读次数:263
poj2752 Seek the Name, Seek the Fame
DescriptionThe little cat is so famous, that many couples tramp over hill and dale to Byteland, and asked the little cat to give names to their newly-...
分类:其他好文   时间:2014-12-14 21:10:37    阅读次数:216
Unique Binary Search Trees
题目:Givenn, how many structurally uniqueBST's(binary search trees) that store values 1...n?For example,Givenn= 3, there are a total of 5 unique BST's. ...
分类:其他好文   时间:2014-12-14 18:30:16    阅读次数:176
POJ 2413 How many Fibs? /HDOJ 1316 How Many Fibs?
题目来源:http://poj.org/problem?id=2413 /  http://acm.hdu.edu.cn/showproblem.php?pid=1316 How many Fibs? Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10742   ...
分类:其他好文   时间:2014-12-14 14:38:05    阅读次数:238
ACM学习历程——HDU5137 How Many Maos Does the Guanxi Worth(14广州10题)(单源最短路)
Problem Description "Guanxi" is a very important word in Chinese. It kind of means "relationship" or "contact". Guanxi can be based on friendship, but...
分类:其他好文   时间:2014-12-14 11:59:26    阅读次数:150
优化mysql数据库性能的十个参数
(1)、max_connections:允许的同时客户的数量。增加该值增加 mysqld 要求的文件描述符的数量。这个数字应该增加,否则,你将经常看到 too many connections 错误。 默认数值是100,我把它改为1024 。(2)、record_buffer:每个进行一个顺序扫描的...
分类:数据库   时间:2014-12-14 00:41:09    阅读次数:269
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