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Windows 7: Diff.between "available" and "free" physical memory?

01 May 2014   #51
Richman1

Windows 7 Ultimate x64
 
 

As for me, myself and I, I think my problem started when I changed my VM setting from 'Widows Managed' to a set number like I used to do with XP so that it wouldn't expand the page file, all in itself should not have been a problem. But I find these days that there are far too many memory leaks and memory leaking applications as I had started using MS Vice Rec software and found that after I booted up one time it was using some massive 10-12 GB of VM I only had a total VM of 18GB so with the ram I was using that put my usage to 15GB. I guess if you have you have to close and reopen memory hogging apps or set your VM to 'System Managed' and allow it to be told by apps they need more memory and have it grow your page file to an astronomical size.


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01 May 2014   #52
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Because I'm simple I will keep it simple.
Windows 7 is not XP.
You do not need to do all those little dings,dongs, tweak, ect. in Windows 7.
If you let Windows 7 control your memory and have enough memory you won't have these things come up.
Don't try to out smart Windows 7; learn how to use Windows 7.
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18 Sep 2014   #53
aintnorock

windows 7 home premium 64 bit
 
 

I have an 8gb of RAM, and I have about 2 gb free. This is a value that can be set, right? Since my memory usage rarely exceeds 30%, should I raise that free value? What would that do? Or should I lower it. I'm not sure what the parameter is for.
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19 Sep 2014   #54
LMiller7

Windows 7 Pro 64 bit
 
 

Quote:
I have an 8gb of RAM, and I have about 2 gb free. This is a value that can be set, right?
No.

The idea that a large amount free memory is beneficial is hopelessly outdated. All modern operating systems try to find some use for as much memory as possible, even if it is only of trivial value. Unused memory is wasted memory. The ideal would be zero free memory at all times. Unfortunately we are not there yet.

This is not some new idea but has been in use in computers for many years, the basic principles dating back to the 1950's. All Microsoft operating systems have followed these principles for more than 20 years. It would have been longer but the early hardware was to primitive to support such a sophisticated operating system. Linux and Mac OS follow similar principles.

You do not have direct control over the amount of free memory. There are misconceived programs that can increase it but they are harmful and should be avoided.
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19 Sep 2014   #55
aintnorock

windows 7 home premium 64 bit
 
 

Thanks, all. I'm not doing anything.
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24 Aug 2015   #56
shimself

w7 ult 32
 
 

My related question is how can I tell from the task manager if I really would profit from doing an install of win 7 64bit and adding more ram. Because I don't really fancy doing a reinstall of windows if I can avoid it.

Thanks
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24 Aug 2015   #57
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Quote   Quote: Originally Posted by shimself View Post
My related question is how can I tell from the task manager if I really would profit from doing an install of win 7 64bit and adding more ram. Because I don't really fancy doing a reinstall of windows if I can avoid it.

Thanks
Look at the "available" number under "physical memory" when you are doing something strenuous on the PC--something that uses a lot of memory, given the applications you use and the way you use them.

Unless you are crowding that number down toward zero, more memory wouldn't help. If it reads "1000" available and you add 4 GB more RAM, it would read about "5000" under the same workload. Instead of having 1000 mb of unused RAM, you'd have 5000 mb unused. No benefit.
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25 Aug 2015   #58
shimself

w7 ult 32
 
 

It's interesting. I started replying and had 251 available. I thought ok I'll add excel and maxview to reproduce a typical heavier load, and actually available went UP a touch to 280 (30 free).

All ways round <10% available sounds as if more ram would be good,do you agree?

Thanks
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25 Aug 2015   #59
LMiller7

Windows 7 Pro 64 bit
 
 

Windows memory manager always maintains control over memory management, always with the goal of maximizing overall system performance. It will always try to maintain what it considers a reasonable amount of available memory under the current situation. This is all very complex so I will not go into the details. It is desirable that Windows does not have to work too hard to accomplish this. I would like to see a minimum of about 40% memory available. This is just a very rough guide. The lower this value becomes the harder the memory manager has had to work. At 10% and lower memory available it has probably had to resort to some of the more drastic methods. At that level you really do need more memory.

It would help if we know how much memory you have. Understand that with a 32 bit OS 4 GB is the maximum.
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25 Aug 2015   #60
shimself

w7 ult 32
 
 

I currently have 4Gb fitted of which Win7 32 uses 3

task manager performance screenshot attached


Attached Images
Diff.between &quot;available&quot; and &quot;free&quot; physical memory?-perfmon.png 
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 Diff.between "available" and "free" physical memory?




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