This feature is supposed to speed up the hard disk access through caching, new generations of hard disk (a.k.a. Hybrid Hard Disks) use good amount of flash memory for this purpose. However, one can use a regular USB flash drive (nearly 1 to 3 times the size of the system memory) to achieve this goal.
The USB flash drive has to support this feature; it has to be large enough and fast enough. Although hard disks are possibly faster in sequential accesses (80 MB/s as opposed to 20 MB/s), they are nearly 10 times slower when it comes to randoms accesses. And this is where we gain performance, random access to small pages (maybe 4 KB) is what we most of the time work with.
New to this feature? Have some questions? try the Q&A blog below to get an idea
http://blogs.msdn.com/tomarcher/archive/2006/06/02/615199.aspx
Tuesday, December 25, 2007
Vista Features: ReadyBoost
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