Re: System Cache

Windows puts an area of the size of about 80% of the RAM on the local
disk. This is the "file system cache". Windows doesn't show you this
file system cache, but you can imagine it as a large file normally on
your Drive C. When you do large file copies to your disk, you can
monitor the increasing of the cache in the task manager. In this moment
the copied files do not stay in the directory where you meant to copy
them. They are in the file system cache. This can last a long time
until the file system cache is emptied an written to the real location.
Microsoft knows that there are problems with the file system cache when
you have machines with much RAM. Maybe when you backup a system and the
file system cache is not empty there can be a loss of data. In large
domain environments, this can cause problems, if the file system cache
is to big. There may be replication problems. To fix the problem some
companies go the way and reduce the memory of domain controllers to
256MB RAM. Because then the file system cache is 80% of 256MB, and the
problems are gone. There is no way to reduce the file system cache
manually (The only way is reducing RAM). You can find registry hacks,
but they dont work.

Bob I schrieb:

No, IT'S YOU that doesn't understand, you haven't started giving it
anything in particular to do yet.

b11_ wrote:

You don't understand. After I boot the computer and reach the desktop, there
is about 1000 mb of free memory which is much more than enough to run games.
There is never a shortage of free memory!
_________________________________________________________________

"Sharon F" wrote:


On Tue, 7 Nov 2006 16:33:01 -0800, b11_ wrote:


System cache is in memory. It is not on the drive.

And as I said, this is a good thing. When your system needs to cache to the
hard drive because the RAM is needed for other tasks, it will do so. As it
stands now, your system is running optimally. No need to change anything.

--
Sharon F
MS-MVP ~ Windows Shell/User


.

Relevant Pages

  • Re: System Cache
    ... You can see the maximum size in Task Manager it is about 80% of the RAM. ... It always lies on your default windows drive normally C: ... only when you use a image of the disk. ... What is this deal about the file system cache being on a different file on ...
    (microsoft.public.windowsxp.general)
  • Re: System Cache
    ... your claims about "file system cache" on disk is complete RUBBISH. ... There is no "file system cache" on disk... ... You can see the maximum size in Task Manager it is about 80% of the RAM. ...
    (microsoft.public.windowsxp.general)
  • Re: System Cache
    ... I know this issues from a Windows 2003 Troubleshooting training, ... File system cache an pagefile are totally different things. ... by changing RAM. ... written to the much faster memory cache instead of the disk. ...
    (microsoft.public.windowsxp.general)
  • Re: System Cache
    ... Yes, there is a cache in the memory too, and I think this works together ... much faster memory cache instead of the disk. ... This is the "file system cache". ... 256MB RAM. ...
    (microsoft.public.windowsxp.general)
  • Re: System Cache
    ... This is the "file system cache". ... Windows doesn't show you this ... Please backup your claims with some technical article ... 256MB RAM. ...
    (microsoft.public.windowsxp.general)
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