Some pupils will do sloppy work unless the teacher keeps after them to wirte neatly .

一些小学生若不是老师反复提醒他们要书写整洁，他们就写得潦潦草草。

But in a multiprocessor system , there may be several processors have read the same data , and then one processor will wirte it . At that time , the copy of the data in the cache of other processors will be out of date .

但在多处理器系统中，由于多个处理器可能对同一数据块进行读操作，当某个处理器对共享的数据块进行写操作时，其它处理器的cache中该数据块的副本将成为过时的数据。

This dissertation presents a novel high performance file system for efficient small wirte : STFS .

本文提出了一种新型的针对小文件同步写优化的文件系统&STFS。

To accelerate the application of CAI courseware , further improve the standardization of CAI courseware , make management department of CAI courseware scientific evaluate CAI courseware , make users accurately choose CAI courseware , make researchers have criteria and aim to explore CAI courseware , we need to build advanced quantitative evaluation methods and constitute reasonable and consummate indexes \' evaluation system of CAI courseware . These are two major factors to wirte this paper .

为促进CAI课件的应用，进一步提高CAI课件的标准化，规范化程度，使CAI课件管理部门能科学地评价CAI课件、用户能正确地选用CAI课件、开发研究人员能有标准、有目的地开发CAI课件，我们需要建立先进的量化评价方法和合理、完善的CAI课件评价指标体系，这些也是促成本论文的两个主要因素。