【摘 要】
：
Running device drivers as unprivileged user-level code, encapsulated into their own process, has often been proposed as a technique for increasing system robust
【机 构】
：
National ICT Australia and School of Computer Science and Engineering, University of New South Wales
论文部分内容阅读
Running device drivers as unprivileged user-level code, encapsulated into their own process, has often been proposed as a technique for increasing system robustness. However, in the past, systems based on user-level drivers have generally exhibited poor I/O performance. Consequently, user-level device drivers have never caught on to any significant degree. In this paper we demonstrate that it is possible to build systems which employ user-level device drivers, without significant performance degradation, even for high-bandwidth devices such as Gigabit Ethet.
其他文献
In modern VLSI technology, hundreds of thousands of arithmetic units fit on a 1cm2 chip. The challenge is supplying them with instructions and data. Stream arch
古人云:返朴归真。这朴就是天然,就是本真,就是大道。心胸有尘常洗涤,大野无疆自逍遥。人心贵乎光明洁净,山水亦然。寄情于山水,一可以知天道,二可以度人生。
Ancients say:
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
自改革开放以来的30多年里，中国的外贸发展得到了快速发展，但是也存在一些问题。环境、资源的约束给中国外贸易发展模型提出了更高的要求: 第一，中国的贸易发展需要促进环境
研究了以香菇、鲜奶为原料生产发酵型香菇奶的方法,通过正交试验,确定接种量、发酵时间、发酵温度和各添加剂用量的工艺参数,从而制得具有独特风味、营养丰富的香菇食品.
动漫产业发展具有极强的爆发增长性，一旦产业条件趋向成熟，即在较短时期内迅速成长为一个国家或地区的支柱产业。同时，还可带动电信、IT、出版、旅游、商业等相关行业发展。本文
近年来，有赖于交易的便利性、在价格方面的优势以及进入门槛低等因素，C2C电子商务作为互联网主要应用形式之一，在中国以非常高的速度增长。据预测，C2C会后来者居上，成为电子商务市
Given an m × n mesh-connected VLSI array with some faulty elements, the reconfiguration problem is to find a maximum-sized fault-free sub-array under the row a
土地是人类社会最重要的生产资料之一，也是城市空间和城市功能的载体，是最大的国有资产。土地一级开发作为土地资产管理和土地利用控制的有效手段，不仅是土地储备的一个必要环节
[目的]了解高密市常规免疫接种率监测情况。[方法]采用差值(D)和比值(R)评价方法对高密市20011年常规免疫接种率进行统计分析。[结果]2011年高密市各乡镇接种率报告完整率为1