Using All Memory in XP?

PURPOSE: Best PC system performance..
..so that it is "quick-on-the-click"
..so it does not bog down ar hesitate.

An observed principle for "dynamic memory"
is that the system slows down if memory is
HALF FULL; hence, total dynamic memory
should be 2 1/2 (two and one half)
times the memory in use.
This occurs due to fragmentation.
This can easily be observed on a system
with no PageFile/swapfile and only RAM.
i.e. It do not work allowing RAM to fill.
With XP total dynamic memory is
RAM plus PageFile.

I have tried turn of paging/swapping
(no PageFile) without success.
The Task Manager still shows these
operating with a small PageFile;
so XP apparently does not allow NO paging
using Control Pannel "tweaks".

(TASK MANAGER: Ctrl+ALT+Delete or
create a Desktop icon for "taskmgr.exe")

(PAGEFILE SETTINGS at:
Control Pannel> System> Advanced>
Performance> Settings> Advanced>
Virtual Memory> Change.
Use the "?" pointer helps and
be sure to click "set" and "apply"

I have experimented and now set
MAX PageFile: Custom> 4096 MB, max and min.
This is the size of the virtual memory and seems to perform a little better.

Also, the PageFile can be defragmented by
temporarily removing it (set No paging file)
shutdown, HDD defragment, then set a new
fixed size PageFile in one piece.

Googling "virtual memory", "XP page file", etc. finds interesting reading.

I am hoping this form can bring out
a system engineer who can enlighten us
or give links on XP PageFile and larger catches for Internet Explorer.

Back to the original purpose.
I have improved XP performance by:
_1 GB RAM minimum for free operation of XP.
_HDD and boot-time defragment at startup...
Defrag software helps: O&O, PerfectDisk.
_Registry repair and registry defrag...
Advanced System Optimizer (ASO), Systweak
works well for me (but not the "tweaks")
and has fixed shutdown corruptions
caused by hp drivers.

I have not yet found software for RAM
defragment that does not cause video bogs
and slow most things. (Running 1 GB at 50%)

Many programs use a lot of memory, and if you run more than one or two at once, Windows might run out of RAM. In that case, it will start using a section of your hard disk called the ?swapfile? to store information. It?s a lot slower than RAM, but it beats not being able to run a program. But sometimes Windows uses the swapfile before it has to. This tweak will tell it to wait till the last moment before doing that.

Click Start, then Run.
Enter msconfig in the box.
Click on the System.ini tab.
Click the plus sign next to 386enh.
Click New, then type ?ConservativeSwapfileUsage=1″ in the box that appears.
Click OK.

This tweak was advice by my friend. He's a college student majoring computer programming and here's he's tip:

Type msconfig in the windows run command. Click the "SYSTEM.INI" tab. Under "386enh" add a new
command call "ConservativeSwapfileUsage=1". Click ok, then reboot to take the effect.

My friend told me that this tweak can improve game playing considerably on windows 2k. But, he's not sure weather it has any effects on XP..

I've tried this tweak and found no performance enhancement on tomb rider legend. But there's a significant performance change when playing prince of persia the two throne..

Hope this help you..