Vista does not seem to be reporting correct memory through taskbar

Discussion in 'Windows Vista Performance' started by Anand, Apr 24, 2008.

  1. Anand

    Anand Guest

    I have 32bit Vista Home Premium on my Dell inspiron with 4 gb of ram, and 128
    mb discrete memory graphic card.

    The system properties reports the memory as 4gb, while the task manager
    reports the total physical memory as 3.5 gb, which is fine since part of the
    memory is locked out due to memory addressing of the devices on the computer.

    However, the usage statistics of the 3.5gb total physical memory do not seem
    to be correct.

    Task bar displays:
    Physical Memory:
    Total : 3581
    Cached: 1864
    Free: 895

    Now my question is: why dont the numbers add up correctly?

    Free + Cached != Total memory ..why so?

    Where is almost 1 gb of memory disappearing to?

    And moreover, the weirdest thing is that in the memory graph the memory
    usage is 33% (around 1.16GB) which no where corresponds to the numbers
    stated above!


    help please!
     
    Anand, Apr 24, 2008
    #1
    1. Advertisements

  2. Anand

    Mark H Guest

    Total : the amount of RAM installed on your computer, listed in megabytes
    (MB).
    Cached : the amount of physical memory used recently for system resources.
    Free : the amount of memory that is currently unused or does not contain
    useful information (unlike cached files, which do contain useful
    information).

    A cache is not the same as total memory in use. It is memory allocated to
    storage of snippets or addresses for quicker access to a function which may
    be used by a program.

    These numbers represent "recently", not current.
    The graph shows, "now."

    Add it up this way...
    Free + Cached + In Use + Kernel
    (Assumming Kernel is probably around 80.)
    Just from the numbers you provided + Kernel, I get 4.00 GB.
    (But, that's probably over simplified...)
     
    Mark H, Apr 25, 2008
    #2
    1. Advertisements

  3. Anand

    ttoomm Guest

    ::This sure does not work for me.::

    ::Graph (In use I assume) = 1.09GB = 1116 MB::
    ::Total = 2045 (which is correct I have 2 GB installed)::
    ::Cache = 1133::
    ::Kernel (non paged) = 90::
    ::Free = 54::

    ::So 1116 + 1133 + 90 + 54 = 2393 *> 2045*::

    ::In fact on my PC just the Cache plus In Use ALWAYS adds to more than
    the Total Installed::
     
    ttoomm, May 4, 2008
    #3
  4. Anand

    ttoomm Guest

    Here is my REAL issue and why I an trying to figure out how to interpret
    what Task Manager, Performance is telling me about memory usage .

    Each night at between 10:30 pm and 2:30 am, the cooling fan speed
    control kicks it up about 500 rpm. I go look at Task Manager and see a
    brief spike in CPU and a distinct drop in the CPU Usage History line
    graph. (see screenshots from two different nights
    '[image:
    http://wwc.ttoomm.googlepages.com/4-24.jpg]'
    (http://wwc.ttoomm.googlepages.com/4-24.jpg) (\"http://wwc.ttoomm.googlepages.com/4-24.jpg\")
    '[image:
    http://wwc.ttoomm.googlepages.com/4-25.jpg]'
    (http://wwc.ttoomm.googlepages.com/4-25.jpg) (\"http://wwc.ttoomm.googlepages.com/4-25.jpg\")
    Note from the Uptime that the interval is almost exactly 24 hours)

    I have searched various forums for the last week to try to understand
    what is going on.

    *I truly hope that someone here is wise and experience enough to
    explain this to me*
     
    ttoomm, May 4, 2008
    #4
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.