Je kunt het het beste gewoon zelf een keertje monitoren door je pagefile-usage een weekje te observeren.
Hier kun je mooi zien hoe dat te doen! Stukje copy-paste:
Monitoring & calculating Pagefile size
Before you can set your Page File you’ll want to get an idea of what to actually set it too. Some recommend using a general formula, e.g. RAM x 2.5 (By default Windows XP sets uses RAM x 1.5). This is incorrect however. Using that formula, a person with 32MB RAM should set 64MB, while a person with 256MB RAM would set 512MB. Obviously the person with little RAM will need a greater amount of Virtual memory than the person with a lot of RAM.
To find a more optimal Pagefile size you will need to monitor its usage. To do this you should first set a relatively high Pagefile size to get a good idea of what’s required. Right click on My Computer & select Properties, then the Advanced tab, followed by the Performance Settings button. Now select the Advanced tab then the Change button. Use a Custom Pagefile setting & set a value of Initial size = Maximum size. A good value to consider using for the monitoring process would be 300, for 2 reasons – 1. It’s unlikely you’ll require a greater Pagefile than this. 2. It will be easier to calculate later on. Click Ok & restart your PC for the changes to take effect. In my case I used 200 as I felt I had a good deal of RAM installed (256MB DDR).
Click on Start, Control Panel, Administrative Tools, then the Performance utility. Expand the Performance Logs & Alerts tree & select the Counter Logs option. Right click in the right hand pane & select New log settings. Enter in a Name as requested & select Ok.
In the General tab select the Add counters button.
En verder kun je het zelf wel lezen. Ik kan je aanraden om in die week ook wel wat geheugenintensieve apps te draaien als je dat soms doet, fotosjop of zo. Je wilt niet eens in de zoveel tijd tegen limieten aanlopen en dan handmatig weer je pagefile vergroten.