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How to: Set up and Utilize RAM Disks - Page 2

post #11 of 325
Few things I could see as FAQ.

-What are you giving up to get a ramdisk? (ram space obviously?, 1 core for overhead?)
-What are the real world benefits?
-How many GB could/should you sacrifice to get a ramdisk.

It sounds like a real interesting concept but I would imagine my overall system would be better off with an SSD rather than more ram.
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post #12 of 325
Crazy! Makes me wish I had 16GB to load BF3 biggrin.gif
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post #13 of 325
Thread Starter 
Quote:
Originally Posted by LosNir View Post

Hi Sean, I think you should read my reply on this thread (and also page p.6):

http://www.overclock.net/t/1193401/why-it-is-bad-to-store-the-page-file-on-a-ram-disk/60

And modify your guide accordingly thumb.gif
Thanks for the guide.

what do you want me to change?
post #14 of 325
Quote:
Originally Posted by Sean Webster View Post

What you should NOT use a RAM disk for :
  • Windows Page File: (link)

This part.
post #15 of 325
Thread Starter 
Quote:
Originally Posted by LosNir View Post

Quote:
Originally Posted by Sean Webster View Post

What you should NOT use a RAM disk for :
  • Windows Page File: (link)

This part.

Why? I see no point, putting a page file on ram makes no sense, there is no benefit...
post #16 of 325
Have you read the last pages of the thread? rolleyes.gif
post #17 of 325
Thread Starter 
Quote:
Originally Posted by LosNir View Post

Have you read the last pages of the thread? rolleyes.gif

yes i have, there is no point.
post #18 of 325
338

Do you think it is normal to have 2.7GB pagefile usage, when there is 12.7GB of free RAM? I don't want to disable it because then I'll have program errors, and the lack of the ability to create a crash dump.

So the solution is to put about 400MB of pf on a RAMDisk. That way you don't disable it completely, but dont degrade your perfomance.
The point is to force windows to use all of the free RAM - it is clear that it fails to do so.
Edited by LosNir - 3/20/12 at 9:19am
post #19 of 325
Thread Starter 
Quote:
Originally Posted by LosNir View Post

338

Do you think it is normal to have 2.7GB pagefile usage, where is 12.7GB of free RAM? I don't want to disable it because then I'll have program errors, and the lack of the ability to create a crash dump.

So the solution is to put it on a RAMDisk. That way you don't disable it completely, but dont degrade your perfomance.
The point is to force windows to use all of the free RAM - it is clear that it fails to do so.

As for the crash dump, depending on the RAM disk driver, the RAM drive may get shut down in a crash and the RAM is volatile and the page file is on the RAM drive and the kernel dumps the memory into the page file, but the crash dump wont be made because the page file no longer exists for the the contents to be put in before it is written to the disk if the driver is shut down.

And you can set the page file to what ever you want it to be. If you don't want windows to use it a lot use a small 400MB page file so crash dumps can still be made.

And where is there a performance increase? That 2.7GB of data is simply not needed for use at the moment, not high enough priority, thus it was tossed into the page file for later use.
post #20 of 325
My page file usage percentage is normally in the 1-2% range with only a 2GiB page file, and 24GiB of system memory, even if the system memory is mostly full.

Windows really doesn't seem to be putting much of anything in the page file unless I am almost totally out of memory.
Quote:
Originally Posted by sepheroth003 View Post

-What are you giving up to get a ramdisk? (ram space obviously?, 1 core for overhead?)

Just memory.
Quote:
Originally Posted by sepheroth003 View Post

-What are the real world benefits?
-How many GB could/should you sacrifice to get a ramdisk.

Both of these depend on what you are doing.
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