探索U盘为Win7/Win8系统加速的奥秘

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  从Vista系统开始,微软功能便将“U盘系统加速”这个概率直接灌入我们的脑海,也便从那时候开始,每次我们插入U盘,系统系统都会自动询问你是否需要启用u盘系统加速。就连现在的Win8系统,微软也仍旧遵循着之前的先例,那么,U盘真的能为我们的Win7/Win8系统加速吗?你了解过这一方面的内容吗?今天我们就一起来探讨下吧!

  U盘加速的工作原理

  U盘加速协助自SuperFetch(超级预读取)来工作。SuperFetch这一技术,也是在Vista推出时引进的新技术。系统会能够根据用户的使用习惯,自动记录经常性的操作行为所发生和结束的时间,当时运行的前台和后台软件等等详细情况,那么在内存有空闲空间的时候,自动预先将存放在硬盘的交换文件转换到内存页面中去,使用户经常运行的程序启动时的速度得到加快。

  SuperFetch技术的中心思想是:“过分空余的内存空间即是浪费”。的确,如果一个操作系统总是保留着过多的空余物理内存耗费电能,却不能够利用这些多余的内存空间提高系统性能的话,为什么不更好地利用这些多余的内存空间呢?将这些多余的物理内存作为缓存使用,就是SuperFetch技术的本质。而也正是由于采用了这种以内存为缓存的策略,才造成了Vista对内存容量的饥渴!

  SuperFetch一般使用的都是计算机的内存,它将文件缓存在RAM中。SuperFetch同样可以利用U盘的存储空间,实际上这也就是我们所说的u盘系统加速。当你将U盘连接上电脑并启用U盘系统加速这一功能之后,系统便会将SuperFetch的数据存入你的U盘中并释放系统内存。从U盘上读取繁琐的小文件要比从硬盘上读取要来的快一些,所以从理论上说,这可以提升你的系统性能。

       

  为什么说U盘系统加速可能并不适合你的电脑

  到目前为止,我们都只看到了U盘系统加速的优点。但U盘有一个硬伤就是USB存储速度是肯定要比RAM慢的,SuperFetch的数据肯定是存储在硬盘上的效果要更好一些。所以说,U盘系统加速只有在你RAM空间不足的情况下效果才最为明显。如果你RAM 空间足够大,那u盘系统加速显然是没有意义的。

  U盘系统加速在RAM空间不足的情况下,效果是比较理想的。在当初Vista刚刚发布时,官方测试使用的是512MB的RAM,加上使用U盘系统加速技术,效果是非常不错的。但是到了现在,大家使用的电脑通常都有几个GB的RAM。而对于提升电脑性能来说,增加额外的RAM永远都是可行的。

  如果你的电脑运行时,内存已经有压力了,那你最好是更换或者添加额外的内存条来解决这个问题。

  什么情况下U盘系统加速效果最为显著

  自身实在不想浪费money添置内存条,而且系统的内存只有512MB或者1GB的情况下而你恰巧又有空闲的U盘可以拿来使用。如果您的U盘读取速度比较慢的话,那推荐您还是不要使用了。

  好了,看到这里,相信大家在自己的心中,对U盘系统加速这一功能是否真的可以明显加快Windows运行速度,都有了自己的答案了。无论功能多么的强大,适合自己的才是最为正确的,你觉得呢?

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