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Windows 7: 32 bit programs 3 gb each?

20 Jan 2011   #21
pallesenw

Windows
 
 

If you are a heavy multitask user of Adobe applications then you tend to use more than 500 MB all together :-)


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20 Jan 2011   #22
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote   Quote: Originally Posted by pallesenw View Post
If you are a heavy multitask user of Adobe applications then you tend to use more than 500 MB all together :-)
The RAM usage depends on the size of the RAM. The more RAM there is available, the more it will use - leading to better performance of course. In a small RAM (e.g. 1GB or 2GB), the usage will be smaller than in a 4GB or 6 GB system. But the small RAM will create more page faults slowing the system down.
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20 Jan 2011   #23
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by pallesenw View Post
If you are a heavy multitask user of Adobe applications then you tend to use more than 500 MB all together :-)
Notice which ones were being mentioned. Those are home-line products with much less in typical memory usage. Even the CS4 products I have installed don't hit 1 GB easily.
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21 Jan 2011   #24
logicearth

Windows 10 Pro (x64)
 
 

Quote   Quote: Originally Posted by pallesenw View Post
The link is about 32bit Windows.

Comparison of 32-bit and 64-bit memory architecture for 64-bit editions of Windows XP and Windows Server 2003

"Applications that are compiled with the /LARGEADDRESSAWARE option, as would be required to take advantage of the /3GB switch in 32-bit Windows, will automatically be able to address 4 GB of virtual memory without any boot time switches or changes to x64 Windows. Plus, of course, the operating system does not have to share that 4 GB of space. Therefore, it is not constrained at all."
You forget that the Virtual Memory is divided up between Kernel and User, by default it is 2 GB Kernel and 2 GB User. For Large Address Aware applications it is set as 1 GB Kernel and 3 GB User. The User portion is where the application lives.

* 64 bit applications are divided up as 8 TB Kernel and 8 TB User.
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21 Jan 2011   #25
pallesenw

Windows
 
 

As hinted in the kb I linked to: In 64bit Windows there is no kernel present in a 32bit application's VAS, so the entire 4GB VAS can be used by the application.

"Plus, of course, the operating system does not have to share that 4 GB of space. Therefore, it is not constrained at all."
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21 Jan 2011   #26
severedsolo

Windows 7 Ultimate X64 SP1
 
 

By default a 32 bit app can only utilise (working from memory here so could be wrong) about 2GB of RAM. On a 64 bit system this can be "hacked" to make it LAA (Large Address Aware) to use more. It's really only any use to you if you have 4GB+ of RAM though, and even then precious few programs actually use all 2GB anyway. Only thing I can think of that would benefit are things like video editing and games.
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 32 bit programs 3 gb each?




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