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Linux netstat命令详解
简介 Netstat 命令用于显示各种网络相关信息,如网络连接,路由表,接口状态 (Interface Statistics),masquerade 连接,多播成员 (Multicast Memberships) 等等。 输出信息含义 执行netstat后,其输出结果为 Active Internet connections (w/o servers) Proto Re...
分类:Web程序   时间:2014-08-12 13:41:14    阅读次数:304
sql中的常见的全局变量
select APP_NAME ( ) as w --当前会话的应用程序select @@IDENTITY --返回最后插入的标识值 select USER_NAME() --返回用户数据库用户名SELECT @@CONNECTIONS --返回自上次SQL启动以来连接或试图连接的次数。...
分类:数据库   时间:2014-08-12 13:08:44    阅读次数:232
amazon 设计 9 chat server
Solution:Apparently, I am too naive and I think too few. Here's the detailed solution.What is our chat server?This is something you should discuss wit...
分类:其他好文   时间:2014-08-12 05:53:23    阅读次数:210
Circle 树状数组
DescriptionYou are given n points and two circles. The radius of the circle will be dynamical. Your task is to find how many points are under both cir...
分类:其他好文   时间:2014-08-12 02:57:33    阅读次数:276
POJ 3259 Wormholes(SPFA)
Description While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path that delivers you to its destination a...
分类:其他好文   时间:2014-08-11 21:26:02    阅读次数:310
UVA - 11986 Save from Radiation
Description J Save from Radiation Most of you are aware of Nuclear Power Plant Explosion at Fukushima after devastating earth quake and tsunami. Many people in Bangladesh ...
分类:其他好文   时间:2014-08-11 21:24:43    阅读次数:252
矩阵十题【九】 HDU 2157 How many ways??
图论和矩阵的结合...
分类:其他好文   时间:2014-08-11 17:55:12    阅读次数:226
mysql数据库性能参数配置(转)
max_connections MySql的最大连接数,如果服务器的并发连接请求量比较大,建议调高此值,以增加并行连接数量,当然这建立在机器能支撑的情况下,因为如果连接数越多,MySql会为每个连接提供连接缓冲区,就会开销越多的内存,连接数太大,服务器消耗的内存越多,以至于影响服务器性能,所以要根据服务器的配置适当调整该值,不能盲目提高设值。可以过'conn%'通配符查看当前状态的连接数量,以定...
分类:数据库   时间:2014-08-11 17:53:42    阅读次数:377
POJ – 2524 Ubiquitous Religions
Ubiquitous Religions Time Limit: 5000MS Memory Limit: 65536KB 64bit IO Format: %I64d & %I64u [Submit] [Go Back] [Status] Description There are so many...
分类:其他好文   时间:2014-08-11 17:26:32    阅读次数:180
hdu1213 How Many Tables
How Many Tables Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 13476 Accepted Submission(s): 66...
分类:其他好文   时间:2014-08-11 14:39:52    阅读次数:179
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