maple tree是B树的优化形式，为了更好的理解maple tree，这里先对B树做一个铺垫学习。

http://hi.baidu.com/richardma_/blog/item/99a973114bac86dcf7039e84.htmlQemu中用的是这个做测试。头文件：#ifndef __CRIEDT_H__#define __CRIEDT_H__int criedt(int c);#endif /* __CRIEDT_H__ *

Concurrency IV -- Spinlock, may be used in code that can't sleepPinciples for using spinlock1. CANNOT sleep when holding a spinlock2. disable preemption before holding a apinlock   this is don

从光盘中复制dd if=/dev/cdrom of=file.iso将硬盘上的文件拷贝到iso中mkisofs -o cdrom.iso directory

referencehttp://www.howtogeek.com/162120/how-to-install-ubuntu-linux-on-your-chromebook-with-crouton/1. enable the dev modePress "Esc"+"Flash"+"Power"

http://www.vpsee.com/2011/07/how-to-use-git-through-a-http-proxy/主要参考了这个帖子。1. 如果是http或者https协议的，那比较简单export http_proxy="http://proxy_ip_address:port"export https_proxy="http://proxy_ip_