ReadyBoost is only worthwhile if you're putting Vista on a oldish machine with less than 1.5GB of RAM.
On a modern machine, it's probably cheaper and more productive to just add more RAM. Vista on 4GB of RAM should be the target of every OCUK'er :~)
ReadyBoost basically will allocate a page file on the USB stick. Traditionally, a page file was severely limited by the seek time of the hard drive it was stored on. Because USB sticks are "flash" memory, they have an access time of pretty much zero milliseconds. This makes them perfect for storing some of the page file on. Vista contains some optimisations to allow to choose which pages of memory should be placed onto ReadyBoost'ed USB sticks - generally it tries to put frequently accessed pages onto them.
BTW don't worry if you accidently unplug the USB drive whilst Windows is running. It does not matter The page file stored on the ReadyBoost'd drive is just a "ghost copy" of the "real" page file stored on the hard drive. So if Windows can't access the ReadyBoost drive it will fall back to the (albeit slower) hard drive copy of the page file.
On a modern machine, it's probably cheaper and more productive to just add more RAM. Vista on 4GB of RAM should be the target of every OCUK'er :~)
ReadyBoost basically will allocate a page file on the USB stick. Traditionally, a page file was severely limited by the seek time of the hard drive it was stored on. Because USB sticks are "flash" memory, they have an access time of pretty much zero milliseconds. This makes them perfect for storing some of the page file on. Vista contains some optimisations to allow to choose which pages of memory should be placed onto ReadyBoost'ed USB sticks - generally it tries to put frequently accessed pages onto them.
BTW don't worry if you accidently unplug the USB drive whilst Windows is running. It does not matter The page file stored on the ReadyBoost'd drive is just a "ghost copy" of the "real" page file stored on the hard drive. So if Windows can't access the ReadyBoost drive it will fall back to the (albeit slower) hard drive copy of the page file.
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