Linked by Thom Holwerda on Mon 11th May 2009 20:43 UTC
Windows SuperFetch is a technology in Windows Vista and onwards that is often misunderstood. I decided to delve into this technology to see what it is all about, and to dispel some of the myths surrounding this feature.
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superstoned
Member since:
2005-07-07

Well, yes, it is a valid issue. Caching algorithms would probably be a bit bad to not take such a situation into account, but when low on memory it might happen.

Furthermore, from the threads below I understand the IO priority system in windows isn't at the level of quality it would need to be to prevent prefetch from having an adverse effect on the performance of the system. In other words, the first disadvantage I considered so unlikely seems to be hurting users...

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lemur2 Member since:
2007-02-17

Furthermore, from the threads below I understand the IO priority system in windows isn't at the level of quality it would need to be to prevent prefetch from having an adverse effect on the performance of the system.


Indeed. One could only hope for an actual benefit from preloaders if the preloader uses ONLY system resources that are idle at the time. There must be spare (unused) RAM and the CPU and disk must be idle when the pre-loader is operating, otherwise the preloader will reduce speed and responsiveness of the overall system where it supposed to be assisting.

Edited 2009-05-12 11:12 UTC

Reply Parent Score: 2