Translations:System Activity/60/zh-cn: Difference between revisions

Latest revision as of 05:47, 1 June 2012

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Message definition (System Activity)

Data requested and actual data read from the hard disk are not equivalent - for example, if two applications read from the same file the operating system does not need to read from the actual hard disk twice - it can just read it once and remember it for a short while. Similarly, if one process writes to a file, but then another process writes over the top of that same file, there's no point writing the first version of the file to the actual hard disk.

数据请求数和实际的读入数据并不等价 - 例如如果两个程序读取同一个文件，操作系统不需要从硬盘读取两次 - 系统会读取一次并保存一小段时间。类似的，进程写入文件时，如果另外一个进程也写入同一个文件，之前写入的内容就不需要再写入硬盘了。