Originally posted by: postmortemIA
I wish that there was just simple option to tell superfetch/prefetch how much ram it can use for prefetching (not for caching).
The problem is...what youre saying doesnt make sense.
"Prefetching" is something that has been in since XP days, what it does is write a small index of what files are loaded when you boot or launch a certain program. It doesnt actually preload the files, it just makes note of which files are generally loaded at the same time so it CAN load them all at once when you boot or launch that program.
Caching is actually having those files in memory ahead of time. There are two ways to do this:
The standard way, where once you load the files, they stay cached even after you close the program.
Superfetch is a method of precaching the files beforehand, either on boot (Vista), or when you go idle (Vista and W7).
In all cases, you want your memory to be filled, always. Program memory *always* takes precedence to cache memory, so you dont lose anything or hurt in any way by having all your free memory used by cache.
Some people find it annoying to have everything loaded on boot. Thats understandable. But its still useful to have it load in the background when youre idle (away from the PC). Thats why they changed the behavior for W7.
None of those options in the OP will help you achieve that on vista. Either you precache on boot, or you give up precaching entirely. Once you start screwing with pre
fetching, you're screwing with something that has very little to do with superfetch and caching, despite the similarity in name, and youre just slowing yourself down.
The reason you cant tell it how much to use is because there's only one good answer to that question, as it has always been, and as it always will be: free memory (as in all zeroes) is wasted memory. For all intents and purposes, cache memory IS free memory.
Facebook
Twitter