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Upgraded to Windows 8, insane RAM cache.

dpAlex

New Member
So, I recently upgraded to Windows 8. And I noticed I started having some issues with performance in games (stuttering, etc). My question was, is it normal for Windows to eventually cache all the RAM available? It started out at 1GB, then started creeping up and has never once gone down in size.

gEGlQ.png

Any help would be appreciated, coming from Windows 7 using similar settings, I did not run into this problem.
 

My Computer

System One

  • OS
    Windows 8 Pro N

gazz9496

Removed by request
sounds like you have a memory leak on one the programs running, possibly the game your having issues with.

check with the games site and look for any updates to it as their may be some compatability issues with windows 8.

and do that for all your applications that don't natively support windows 8.
 

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dpAlex

New Member
The RAM is cached though, not in use. I was mostly wondering if this is new in Windows 8. Cause I don't remember Windows 7 caching the majority of my RAM.

This happens even though I do not use the program in question. It seems to just happen over time in Windows 8.
 

My Computer

System One

  • OS
    Windows 8 Pro N

wpcoe

Member
Member
To answer one of your questions: No, it is not normal for Win8 to cache all the RAM. I have 12GB installed, with 1GB allocated to the IGP (i3-3225, with no discrete graphics card), and Task Manager shows 10.2GB available, and only 2.5GB cached:

task_manager_memory_use.gif
 

My Computer

System One

  • OS
    Windows 8.1.1 Pro
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    PC/Desktop
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    Home built
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    i3-3225
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    H77M-D3H (micro-ATX)
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    12GB
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dpAlex

New Member
To answer one of your questions: No, it is not normal for Win8 to cache all the RAM. I have 12GB installed, with 1GB allocated to the IGP (i3-3225, with no discrete graphics card), and Task Manager shows 10.2GB available, and only 2.5GB cached:

View attachment 13263
Does it ever decrease in Cached RAM though, or does it seem to be fixed (i.e. once 2.5GB, it will never hit 2.4GB again).
 

My Computer

System One

  • OS
    Windows 8 Pro N

wpcoe

Member
Member
Hmmm. Not sure long-term, but in short-term, it looks like once it caches, it keeps it in cache. I just opened a bunch of apps, including running a HD video, and the cache crept up to 3.4GB. Closing all those apps, and going into Task Manager and closing all those annoying background processes from Google, Apple, Adobe, etc -- still have 3.4GB cached. Committed is back down to 1.4GB.

Perhaps periodically -- a longer period than this short test I did -- Win8 will release some from the cache? <shrug>
 

My Computer

System One

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    H77M-D3H (micro-ATX)
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    Logitech K260
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theveterans

New Member
Member
I think the cached ram will keep increasing until you run a program that requires huge RAM. Then Windows should let go of some the cached RAM to make space for the program. If you don't want Windows 8 to cache large amount of RAM, just disable superfetch in the services.
 

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dpAlex

New Member
I disabled Superfetch, after 40 minutes of using the computer today, this:
fnhPb.png
I don't know but it doesn't seem like disabling it stopped it from caching tons of RAM for no reason.

edit: It has now reached 9.1GB cached, with superfetch disabled. Never decreased, it doesn't make any sense.
 
Last edited:

My Computer

System One

  • OS
    Windows 8 Pro N

My Computer

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  • OS
    Windows 8.1.1 Pro with Media Center
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    Gateway
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    AMD K140 Cores 2 Threads 2 Name AMD K140 Package Socket FT1 BGA Technology 40nm
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dpAlex

New Member
tcB8b.png
zavKU.png
Not sure how it's supposed to help. RAM cache is now at 7.8GB, so it is CAPABLE of decreasing.. it just doesn't do it nearly often enough.
 

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mikiep

New Member
Member
Restart then look in your management console at the Administrative Event log. That's where you will see reference if a problem with memory/handle leaks.
 

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  • OS
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bigcid10

New Member
No,you def have memory leak
I have 32gb and windows 8 uses about 6 gb
Cache
 

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    i7-3930
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    asus P9X79 Deluxe
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    32gb
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    nvidia gtx670

Mystere

Power User
VIP Member
Power User
I'm curious, are you still using the beta versions? I'm using the Retail version, and I don't see "Other" or "DDR3" or what some of the other people have. It just says 16GB.

It also says 7.0GB Cached, and this is pretty normal. Windows will use whatever memory you are not using for cache, and will release memory when need be. However, it will aggressively manage memory in order to give the largest amount of cache available.

This isn't likely to cause stuttering in your game, there are probably other reasons. Are you using the latest driver for your video card?
 

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shakennstirred

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Member
I have 3.5gb cache on my laptop
 

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theveterans

New Member
Member
It also says 7.0GB Cached, and this is pretty normal. Windows will use whatever memory you are not using for cache, and will release memory when need be. However, it will aggressively manage memory in order to give the largest amount of cache available.

This isn't likely to cause stuttering in your game, there are probably other reasons. Are you using the latest driver for your video card?

I don't think Windows will just cache all the free RAM, my laptop right now is using 1.8 GB cache out of 8 GB RAM after using it for more than 2 hours. I have never seen Windows cache all the free RAM if you have 8 GB or more. I do know that Windows likes to cache all the RAM if you have 4 GB or less. For my laptop, the most I've seen is 3 GB, and that's when I'm playing games or have 20+ tabs in the browser or when I left the laptop idling for 30 minutes
.
 

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Anusha

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xraiderv1

pixel artist
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ok..what I want to know, is will it eventually let go of the cached ram?
 

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Anusha

New Member
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LMiller7

Active Member
Pro User
A high value for cached memory is completely normal and a good thing. It is not unusual for this to be 50% or more of total memory, particularly on systems with high memory. A portion of this will be on the standby list, the remainder the file cache. The standby list is part of available memory and will be used as necessary. The file cache is not available but will be trimmed back if necessary.

Free memory should be low. The ideal would be zero free memory at all times but we are not there yet. Free memory is consuming power and providing nothing in return. You don't need it, you don't want it.
 

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