【摘要】 在当前计算机产业中,有效的数据存储通常还是由磁盘来实现的。现在,磁盘传输速度不断改善,但远没有微处理的速度增加快,因此,磁盘存取的代价相对于处理器来说,变得越来越大。本文设计并实现一个网络RamDisk,其主要思想是利用远地空闲PC机的内存,来作为一个比本地磁盘快的存储设备。我们的网络RamDisk是在Linux操作系统下,作为一个块设备驱动程序来实现的,因此,不需要修改任何Linux系统的内核代码。我们使用了一些应用程序进行测试,获得了较好的性能.更多还原

【Abstract】 Efficient data storage,a major concern in the modern computer industry,is mostly provided today by the traditional magnetic disk.Unfortunately the cost of a disk transfer measured in processor cycles continues to increase with time,making disk accesses increasingly expensive.In this paper we describe the design,implementation and evaluation of a device that uses main memory of remoteworkstations as a faster-than-disk storage device.Our Network Ram Disk has been implemented both on the Linux operating systems,as a block device driver without any modifications to the kernel code.Using several applications,we measure the performance and find it to be usually four to eight times faster than the magnetic disk.更多还原