全部博文(48)
发布时间:2013-08-22 22:46:50
== Structure ==I/O多路复用技术==========系统内核缓冲I/O数据,当某个I/O准备好后,系统通知应用程序该I/O可读或可写,这样应用程序可以马上完成相应的I/O操作,而不需要等待系统完成相应I/O操作,从而应用程序不必因等待I/O操作而阻塞。优点:系统开销小,比Multithread。水平触发(Level Triggered)==========.........【阅读全文】
发布时间:2013-08-19 21:12:00
== Structure ==TCP congestion control== Understand ==TCP congestion control=============slow-start:慢说的是从一个很小的值1开始,实际上是指数增长,速度异常快!fast retransmit: 快说的是,本来有个包定时器,超时触发重传。当收到3个相同的ack就重传,所以说快,不等超时了。fast recovery: 快重传之后.........【阅读全文】
发布时间:2013-08-12 22:37:44
==Structure ==grsecurity is a set of patches for the Linux kernel with an emphasis on enhancing security. It allows the system administrator to, among other things, define a least privilege policy for the system, in which every process and user have only the lowest privileges needed to function.P.........【阅读全文】
发布时间:2013-08-12 22:11:44
==Structure ==LXC provides the resource management through the control groups aka process containers and resource isolation through the namespaces.User interfaces of LXC==Understand ==User interface of LXC============Create/destroyStart/StopGet infoSetting cgroup== .........【阅读全文】