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Win7 Critical Memory Leak Problem - Page 2

post #11 of 12
Quote:
Originally Posted by Catscratch View Post

You could be seeing the effects of SuperFetch. Basically the system fills the ram with frequently used applications and data so when you use them again, they open fast. And it's not a fixed usage, if a program needs more memory, windows gives some from SuperFetch. It's very dynamic and usually doesn't cause trouble. However, if the system gives memory warning on idle, without any memory related programs running (like folding, a game in the background, or huge torrent files ul dl at the same time) you should investigate further. With ProcessExplorer you will see many svchost.exe, when you hover mouse over them, there'll be a list of running services, see if the biggest one(memory wise) have SuperFetch listed.

    Nice try, but Superfetch doesn't cache the files itself.  It simply reads certain files into the system cache; thus, you won't see a svchost.exe process using a pile of RAM due to Superfetch file caching.  If you open the Windows Task Manager and go to the Performance tab, you'll see how much space is being used by the system cache by looking for "Cached" under the "Physical Memory" frame.  Please note that this cache is populated by Superfetch, Prefetch, and by programs simply reading/writing files.  In addition, the Superfetch cache space doesn't show up under the System process either.

    @Nautilus: In the screenshot that you posted, the system cache is the blue bar listed as "Standby" in the memory summary.  As you can see, the problem is not the system cache, but the used memory (olive green bar).  In the future, it would be nice if you simply embedded the picture in the post so we could see it without downloading it. thumb.gif    I don't know about other computers, but my Windows 7 system here shows only 60 KB for the System process under Working Set in Resource Monitor.  Personally, I suspect a faulty (or malicious) driver being the culprit, since many drivers are hosted by the System process.  Do you have a RAM drive by any chance?  Perhaps try booting in Safe Mode and see if the issue persists there.

    For those that are interested, there is a free program called "Process Hacker" that is faster and more powerful than Process Explorer.
 
Edited by Techie007 - 8/11/13 at 6:32am
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post #12 of 12
Quote:
Originally Posted by Techie007 View Post

    Nice try, but Superfetch doesn't cache the files itself.  It simply reads certain files into the system cache; thus, you won't see a svchost.exe process using a pile of RAM due to Superfetch file caching.  If you open the Windows Task Manager and go to the Performance tab, you'll see how much space is being used by the system cache by looking for "Cached" under the "Physical Memory" frame.  Please note that this cache is populated by Superfetch, Prefetch, and by programs simply reading/writing files.  In addition, the Superfetch cache space doesn't show up under the System process either.

    @Nautilus: In the screenshot that you posted, the system cache is the blue bar listed as "Standby" in the memory summary.  As you can see, the problem is not the system cache, but the used memory (olive green bar).  In the future, it would be nice if you simply embedded the picture in the post so we could see it without downloading it. thumb.gif    I don't know about other computers, but my Windows 7 system here shows only 60 KB for the System process under Working Set in Resource Monitor.  Personally, I suspect a faulty (or malicious) driver being the culprit, since many drivers are hosted by the System process.  Do you have a RAM drive by any chance?  Perhaps try booting in Safe Mode and see if the issue persists there.

    For those that are interested, there is a free program called "Process Hacker" that is faster and more powerful than Process Explorer.
 

Yep, that was a longshot from me biggrin.gif Even with the normal task manager the memory hogger should be visible when the "Memory Private (Working Set)" column added. Sometimes iexplorer.exe gets left open in the backgound. Heck even Firefox will never release memory, it's using 700mb right now, i had tabs open but they are closed now, only the forum tab.
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