Re: need to limit or disable files being retained in memory or cache

From: Alasdair (alasdair_at_digitalREMOVEMEmystic.co.)
Date: 09/03/04 

Date: Fri, 3 Sep 2004 17:04:40 +0100

please note email address requires editing

www.digitalmystic.co.uk

"Cyndee" <anonymous@discussions.microsoft.com> wrote in message
news:0aa801c491cc$749fc480$a401280a@phx.gbl...
>I have two laptops (Compaq presario 1500, Dell Inspiron
> 1100 - both Pentium 4, both 2 GHz +, both have 512 mb
> memory) The purpose of these laptops is to use in a
> medical neurosurgery clinic to view patient CT scans while
> the patient is there (supplaments - negative type films)
>
> The problem -
> The CT scans come on a disk from another hospital. The
> disk contains a viewing program (I do not want to mention
> the name). The viewing program loads in a browser window
> and gives the user an option to view images. At that
> point, there are usually several directories. I have been
> choosing the one with the most images (200 +) for my
> testing. The images take a fairly long time to load 1 - 3
> minutes. Understanding that the DVD/CD rom is the
> bottleneck, through tweaking of the system - I have been
> able to reduce the load of a 220 image file from 3 mins to
> 1min 15 secs (on both machines).
>
> As each CD is loaded, the images are being retained and
> not released. In my testing I noticed that if I load the
> CD images, shut the program down but not the computer,
> reinsert the CD, the images will load in about 2 secs or
> less. That tells me that they are in memory somewhere.
> (If I turn the computer all the way off, they have to
> reload from scratch again). I called the viewer vendor
> who told me that they purge their images when the program
> is shut down. That may be but something is keeping them
> either in memory or in cache. They said that Windows XP
> was doing it. I don't know how to prove or disprove that
> but it doesn't matter because my relationship with the
> vendor is indirect and I really don't have the right to
> make any kind of demand at all.
>
> Here is what I would like to do if possible. When the CD
> loads, I don't want the images to be cached at all. The
> doctor is going to look at the scans only when the patient
> is there and will not look at the same scans in that
> clinic again.
>
> What I have done in my previous tweaking was to disable
> everything in the startup window and most everything in
> the services window. I adjusted the performance for best
> performance which eliminated all of the check boxes in
> that window. The processor scheduling is for programs and
> so is the memory useage. Those changes seemed to allow me
> to reduce the load time. Now, I have changed the page
> size from the recommended 766 mb to 2048 with a maximum of
> 4096 in hopes that it will buy enough space to let them
> get through an entire clinic. I plan to buy more memory
> to double the size but I really wanted to see if my new
> changes would help
>
> And of course, if I could prevent these images from being
> cached in the first place, that would solve the problem
> altogether - I think.
>
> Any advice from anyone?

tried clearing the history?
ie menu tools/internet options

Alasdair

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