On Thu, 20 Sep 2007 06:11:44 -0700, rminnis82 wrote:
Quote:
> Thanks for your more detailed reply, your first post seemed very
> dismissive of the problem by just saying add more RAM as that isnt the
> problem in case.
I'm not dismissive of the problem, I'm just dismissive of the incorrect
solution.
Quote:
>
> With the X41 (slower processor and less RAM than the Z60m), the SD card
> makes a visible improvement.
>
> The Z60m has massive spike in CPU when ReadyBoost is enabled on the SD
> card...it has a 2Ghz processor, 2GB of RAM and a very good graphics card
> (by laptop standards) so why should the CPU overload of 80-100% when the
> SD card is added even f the system is capable of running Vista without
> the SD card.
>
> The validity of the SD card is debatable, I just want to know why
> ReadyBoost would cause a CPU overload?
It shouldn't, I'll agree on that much. Probably a bug somewhere in
Vista's 50 million lines of code.
That said, any kind of paging is bad. Period. I don't care if it's paging
to a hard drive or to a flash drive. It's bad. Everytime a page miss
occurs, it triggers a page fault interrupt, then the correct page has to
be loaded into memory from whatever slow media it is stored on, and if
insufficient memory is available for that, another page not currently in
use has to be stored to whatever slow media is available.
All around, it's a bad thing to be happening.
Computers that are really far below spec for Vista can benefit a little
from paging to a flash drive instead of a hard drive, under the condition
that said flash drive actually has sufficient bandwidth. Not all are
created equally.
But even if such a computer sees benefits from the flash drive, the
benefits said computer would see from additional RAM are by magnitudes
greater. So no matter which way you slice it or dice it, RAM is always
better than flash.
That's why I roll my eyes at Readyboost and it's hype and dismiss it as
one of the most useless things to ever come out of Redmond. Ultimately,
the best suggestion I can make to you is to stop mucking around with the
ready boost, throw some more RAM into the machine and be happy with the
far greater benefits you'll get as a result.
--
Stephan
2003 Yamaha R6
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