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[转] KVM I/O slowness on RHEL 6
KVM I/O slowness on RHEL 6 http://www.ilsistemista.net/index.php/virtualization/11-kvm-io-slowness-on-rhel-6.html?limitstart=0 Over one year has passe...
分类:其他好文   时间:2014-07-07 20:21:46    阅读次数:397
Problem Path Sum
Problem Description:Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equ...
分类:其他好文   时间:2014-07-07 19:03:39    阅读次数:165
The directfb backend has been removed from GTK+ 2.90.6 to 2.90.7
From gtk+-2.90.7 configure --help we can see:--with-gdktarget=[x11/win32/quartz] select non-default GDK targetThere is no directfb in the gdktarget as...
分类:其他好文   时间:2014-07-07 18:22:03    阅读次数:235
Music player on Linux system for classical music: Audacious
The default music player on Debian 7.0 is Rhythmbox. At the first look, its appearance seems not so bad. Although it has the problem of displaying Chi...
分类:系统相关   时间:2014-06-30 13:15:51    阅读次数:406
Test of returning array efficiency from Fortran subprograms
Fortran has two kinds of subprograms: subroutine and function. Usually, subroutine is a combination of several procedures generating side effects with...
分类:其他好文   时间:2014-06-30 12:43:00    阅读次数:207
关于jdbc的一些疑问
1.为什么强调在使用jdbc时,需要在使用的时候才打开连接(Connection),用完后立马关闭。如果我的连接(Connection)一开始就打开,在整个程序结束时才关闭,会带来什么后果呢? 2.为什么要使用连接池?而且在使用连接池的时候也要强调连接的打开和关闭?如果不使用连接池,会带来什么样的性能影响? 总之,总觉得自己照猫画虎会使用JDBC或c3p0写数据库访问程序了,但关于co...
分类:数据库   时间:2014-06-30 09:03:26    阅读次数:229
二分法查找 --JS 实现
var indexOfSorted = function f(arr,n){ //assume : arr has been sorted var low = 0; var high = arr.length - 1; var mid = (low + high) / 2; while(high - low > 1){ if(n == arr[low]){return low...
分类:Web程序   时间:2014-06-30 08:54:10    阅读次数:978
Linux下Nginx的安装步骤
Linux下Nginx的安装 如果出现:error: 'ngx_http_file_cache_node_t' has no member named 'length'异常,可能是ngx_cache_purge-2.1.tar.gz版本太旧导致...
分类:系统相关   时间:2014-06-30 00:11:43    阅读次数:401
Text Justification
题目 Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified. You should pack your words in a greedy approa...
分类:其他好文   时间:2014-06-29 23:44:02    阅读次数:357
LeetCode: Linked List Cycle [141]
【题目】 Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 【题意】 判断一个单向链表是否有环 【思路】 维护两个指针p1和p2,p1每次向前移动一步,p2每次向前移动两步 如果p2能够追上p1,则说明链表中存在环...
分类:其他好文   时间:2014-06-29 22:51:33    阅读次数:267
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