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cyrnel · 01-18-2005, 03:54 PM

Disabling VM is generally bad.

Photoshop and many other memory intensive programs use sparse allocation. They reserve large maps of work memory before they actually need it, and often never use much of it. If you disable VM you force these large virtual ranges to be mapped to real memory and everything grinds to a halt. The system will be great and then brain-freeze, especially if a system dependency can't be fulfilled because everything is reserved.

If you have 512MB or more, reserve at least a couple hundred MB or whatever disk space you're comfortable with & set DisablePagingExecutive = 1. Applications will continue to use VM but the system & drivers won't get paged out. It makes a big difference at the desktop and when switching beteen apps.

Works for 2k & XP

01-18-2005, 03:54 PM	#15 (permalink)
cyrnel Adequate Location: In my angry-dome.	Disabling VM is generally bad. Photoshop and many other memory intensive programs use sparse allocation. They reserve large maps of work memory before they actually need it, and often never use much of it. If you disable VM you force these large virtual ranges to be mapped to real memory and everything grinds to a halt. The system will be great and then brain-freeze, especially if a system dependency can't be fulfilled because everything is reserved. If you have 512MB or more, reserve at least a couple hundred MB or whatever disk space you're comfortable with & set DisablePagingExecutive = 1. Applications will continue to use VM but the system & drivers won't get paged out. It makes a big difference at the desktop and when switching beteen apps. Works for 2k & XP Last edited by cyrnel; 01-18-2005 at 03:56 PM..