Virtual PC Question

DocDVD · 09-21-2005, 08:12 PM

I have 8GB of memory in my G5...any reason I can only allot 512 towards Virtual PC 7.02?

fat elvis · 09-21-2005, 08:20 PM

from what I found on the google-net it looks like this is a feature

cwtnospam · 09-21-2005, 08:29 PM

LOL! It's not a bug, it's a feature! Only from Microsoft.

Didn't Bill say that 512MB should be enough for anyone? ... Oh, that was 640KB.

styrafome · 09-21-2005, 08:43 PM

You can blame Microsoft all you want, but the 512MB limit was there when the very pro-Mac engineers at Connectix were coding the app before Microsoft bought it.

I can't remember the link, but somewhere there was a detailed explanation of why, unless you really need to, you should leave VPC set for 256MB RAM. Apparently if you assign more RAM to VPC than you need, you'll get Windows swapping to disk, which really means OS X swapping to disk, and it all becomes very recursive and redundant and slow. I turned mine down to 256 (I only need to use a couple of basic apps in VPC) and sure enough, it's snappier (TM).

CAlvarez · 09-21-2005, 08:45 PM

You should only allocate 256MB to VPC; more will make it slower. If you really want to know why, try a search, but it's a well documented limit.

bedouin · 09-21-2005, 08:48 PM

In other news, he has 8GB of ram. Wow.

09-21-2005, 08:12 PM	#1
DocDVD Triple-A Player Join Date: Apr 2005 Posts: 194	Virtual PC Question I have 8GB of memory in my G5...any reason I can only allot 512 towards Virtual PC 7.02?

09-21-2005, 08:20 PM	#2
fat elvis MVP Join Date: Oct 2003 Location: New York Posts: 1,506	from what I found on the google-net it looks like this is a feature __________________ “If more police, more prisons and more prosecutors was a solution to safer streets, the United States and China would be the safest countries on the planet, and they’re not..." -Jane Sterk

09-21-2005, 08:45 PM	#5
CAlvarez Hall of Famer Join Date: Sep 2004 Location: Phoenix, AZ Posts: 4,975	You should only allocate 256MB to VPC; more will make it slower. If you really want to know why, try a search, but it's a well documented limit. __________________ -- Carlos Alvarez, Phoenix, AZ "MacBook Nano" (Lenovo S10) Atom 1.6/2GB/160GB Mac OS X 10.5.6 Gigabyte Quad Core 2.83GHz Hackintosh 4GB/500GB Mac OS X 10.6 MacBook Air 1.8/2GB/64GB SSD http://www.televolve.com

09-21-2005, 08:29 PM	#3
cwtnospam League Commissioner Join Date: Jan 2005 Posts: 8,475	LOL! It's not a bug, it's a feature! Only from Microsoft. Didn't Bill say that 512MB should be enough for anyone? ... Oh, that was 640KB.

09-21-2005, 08:43 PM	#4
styrafome Hall of Famer Join Date: Nov 2004 Posts: 3,818	You can blame Microsoft all you want, but the 512MB limit was there when the very pro-Mac engineers at Connectix were coding the app before Microsoft bought it. I can't remember the link, but somewhere there was a detailed explanation of why, unless you really need to, you should leave VPC set for 256MB RAM. Apparently if you assign more RAM to VPC than you need, you'll get Windows swapping to disk, which really means OS X swapping to disk, and it all becomes very recursive and redundant and slow. I turned mine down to 256 (I only need to use a couple of basic apps in VPC) and sure enough, it's snappier (TM).

09-21-2005, 08:48 PM	#6
bedouin All Star Join Date: Aug 2004 Posts: 759	In other news, he has 8GB of ram. Wow.