lcw_202的专栏

<br />转自：中国Linux论坛         原作者：lucian_yao 内容有修订，并给出总结 <br />我们常常使用系统调用open来打开一个文件，例如:<br />fd = open( "/mnt/data/myfile",O_RDWR|O_CREAT);<br />下面来看看Linux是如何完成的，首先是系统调用的代码:<br />sys_open的源程序<br />view plaincopy to clipboardprint?<br />asmlinkage long sys_op

http://lwn.net/Articles/115405/[Posted December 13, 2004 by corbet]Kernel hackers often need to be able to export debugging information to user space. This information is not needed for the re

44struct files_struct {48        atomic_t count;49        struct fdtable *fdt;50       struct fdtable fdtab;54        spinlock_t file_lock ____cacheline_aligned_in_smp;55        int next_fd;

http://heikezhi.com/2011/06/19/swiss-army-knife-of-unix-debugging-lsof/这是“你应该知道的Unix和Linux命令”系列的第三篇，在这篇文章中，我会介绍lsof这个工具，如果说netcat是进行网络诊断的瑞士军刀，那么lsof就是Unix调试的瑞士军刀。Lsof是遵从Unix哲学的典范，它只做一件事情，并且做的相当完美—

March 21st, 2011 Yu FengLeave a comment Go to comments原创文章，转载请注明： 转载自Erlang非业余研究本文链接地址: Linux下异步IO(libaio)的使用以及性能Linux下异步IO是比较新的内核里面才有的，异步io的好处可以参考这里.但是文章中aio_*系列的调用是glibc提供的，是

http://lwn.net/Articles/438256/Since the dawn of time, or for at least as long as I have been involved, the Linux kernel has deployed a concept called "plugging" on block devices. When I/O is queued