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Windows 8.1 very high commited memory usage>? - Page 3

post #21 of 29
How long does it take for commit to get this high? Could you remove all Norton products for the time being?
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Ol' Sandy
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post #22 of 29
Thread Starter 
I will give me few minutes...
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post #23 of 29
Thread Starter 
Quote:
Originally Posted by tompsonn View Post

How long does it take for commit to get this high? Could you remove all Norton products for the time being?





This is without Norton, removed with their removal tool and made 2 reboots, system should be 100% clean regarding Norton.
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post #24 of 29
Looks better. Use the system as normal for a while, let's see smile.gif
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Ol' Sandy
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Hitachi HDS723020BLA642 Hitachi HUA722010CLA330 WDC WD10EARS-00Z5B1 TSSTcorp CDDVDW SH-S223B 
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Phanteks PH-TC14PE with TY-140's Lamptron FCv5 (x2) Windows 8 Pro 64-bit Dell U2412M 
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post #25 of 29
Thread Starter 
Ok thanks, rep + thumb.gif
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post #26 of 29
As a rule of thumb, the more RAM you add.. the more of it Windows will use up.. the same rule applies to the paging files... if you go crazy (and you have the disk space) and make a 1TB page file... windows will greatly increase the amount of memory it uses. In the case of lower memory and outrageously large swap file(s), Windows will load as many DLLs and other system files it normally doesn't need, then page them out to the paging file as it's quicker to get them out of the paging file vs going through all the step of loading it... If you have 4GB of ram, and suddenly just to 32 or 64GB... even if you only have 4GB total in pagefile(s), Windows will still so the above... However, it won't swap out as much stuff as there's limited paging. Windows usually knows you aren't going to use all that memory. Most home users only get 16-32GB of RAM so they can have a NIIIICE HUUUGE read cache after the computer has been running for a few days.. or some people may make a 16GB (or whatever RAM disk) and copy their favorite game to it for ultra fast load times... TBH... this is NOT needed... If you have the ram to have a large enough cache, your game (s) will eventually all end up cached, and when you load them, the HDDs will hardly be touched. So IMO RAMDisks these days are pretty useless. - Unless you have something you ALWAYS want to run out of ram and dont want to risk its cache data being purged. Most RAM disks will save their contents and be persistent (meaning you don't lose the data if you reboot or shut down, the data on the ram drive is saved to a temp file on a HDD and loaded back in upon start up).. More on what your pagefile(s) should be later....

Anyway, I will use myself as an example

I originally had 8GB in my rig, then 16 then.. 32... at each step windows used more and more memory.... ESPECIALLY the SYSTEM processs (ntoskernel.exe) which is the Windows kernel itself. Normally it only takes 5MB and the file is only 5MB in size.. but it can end up loading a LOT of DLLs and other stuff into it's WORKING memory set. The system process does NOT use commit memory. Therefore you're memory numbers in windows will be off. In task manager (in win 8/8.1) it will show you how much physical ram is in use vs commit.. commit charge is all the memory applications have RESERVED for USE... Example, you can fire up an app, and RIGHT off it takes 2GB commit memory because it wants to make sure it's not going to run out... what it doesn't use is very quickly paged to the paging file(s).. empty/idle memory pages don't last long in physical memory no matter how active the user is on the computer... the only thing that will slow/delay this is if the HDD (or HDDs) the pagefile(s) is/are on are VERY busy, then windows will avoid paging unless is absolutely needed. Anyway, on a 32GB x64 version of windows... SYSTEM (aka ntokkernel.exe) will eat up to 8GB of RAM.. up to 4 on a 16GB machine, up to 2 on an 8GB machine, and about 512MB on a 4GB machine)...

Plus windows will attempt to fill every , last free bit of memory with hard disk cache info. If you suddently jump from 8 to 16 or 16 to 32... chances are you dont have enough installed games and apps for superfetch to pre cache THAT much data... usually that much memory gets filled as you use the system.

If you have nothing but services, and backgroup apps running on a 16GB or 32GB machine up to 6-8GB of ACTIVE (physical) memory will be used - providing you have installed stuff like office, firefox, itunes.. etc... stuff that puts services and dlls and exe to load on boot or load on login... all those add up over time....Right now my machine has been up for about 8 hrs...of 32GB memory.. 6.6 physical memory is in use (It was up to 8 earlier).. all I had open was firefox.. but I had so many tabs that ff took, and still is using 1.4GB of memory....and my commit was about 7.5GB..

Before I go any further.. there's a LOT of hype and mis information a pagefiles. Many people say make it 1.5Xs your physcal memory... 2.5Xs.. others say only 1/2... It's all JUNK with no REAL reasoning behind it... Your pagefile(s) should total what your PEAK commit charge has historically been with a few extra GB to be safe...Windows no longer shows the peak commit charge. However you can look at the committed memory using task manger and take note when your system is at it's highest memory load you would every take it to... if the commit is only 14... and you have 16GB... then, just make a 1-2GB page file.. if you have 2 drives 500-1024MB per drive..3 HDDs 750-1GB per drive.. I mean PHYSICAL drives or raid arrays.. NOT logical drives that are on multiple partitions on the same physical drive.. this will let windows use the page file sort of like a raid array.. it will use 2,3,4,5,6, etc page files at once.. and if a drive is very busy, it wont bother using the pagefile on that drive...

As long as you have 8GB or more of free/standby on a 16GB machine, you are golden... and on a 32GB machine you should have about 20-24GB free... if the system REALLY needs what's in active memory... the SYSTEM process (Windows kernel) will instantly DROP it's working set and reduce itself to 200KB working 5MB commit.. and most any background service or app will dump at LEAST 1/2 of it's working set to the page file - provding it's not using it.... so if a background app is using 100% of it's memory all the time.. it's NOT going to swap to the pagefile unless the program you run is so massive that it forces that program and background apps to literally run off the page file... you never want that to happen as u will grind to a halt,, to keep things smooth. there's should always be no less than 1 free GB of memory.. be it free or standby.. that way nothing is executing code on the pagefile system... If you find yourself in that possition.. you need more ram.. or uninstall background apps and programs
post #27 of 29
Thread Starter 
Good one thumb.gif

rep + redface.gif
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My System
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WD Blue EZEX 1TB & Samsung 840 Pro 256GB (OS) Asus Nocuta NH D14 WIN 7 64 Ultimate 
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post #28 of 29
I'm having the same problem. I only noticed it when I had to borrow 8GB out of the 16GB for another machine temporarily. I normally run with the pagefile disabled and had no problems with anything I did but when I was running with only 8GB, it didn't make any difference even if I had a pagefile.

What appears to be happening is that Chrome (v39.0.2171.27 beta-m (64-bit) is using, or reserving, an awful lot of Virtual memory, so even though I have almost half my physical RAM free, when the Committed gets near to full it throws up these "Low Memory Warning" messages. If I try and launch ArmA3 whilst Chrome is running like this, there's still 6.6GB Physical RAM free but the Committed fills up and up comes the warning and then strange things happen, like the resolution will get messed up and I won't be able to restore Chrome, or anything else that was open at the time and have to close them from the taskbar.



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post #29 of 29
I'm running Windows 10 and had the exact same issue. Lots of physical memory (16GB), most of which was free, but a huge committed memory (25GB) that eventually triggered Out Of Memory errors. To resolve it:
  • Grab Sysinternals Process Explorer
  • Run as Administrator
  • Add the column Page Faults and sort by that
  • In my case the top entry was RunSwUSB and it had something like 13 million entries!
  • I stopped that service and you can see the results immediately in the graph below.
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