You could maybe use Windows System Monitor for that. I haven't used it indepth before, but there seems to be quite a number of items (like specific memory usage, various disk cache sizes, CPU, etc..) you can view, & you can even log them.
May I ask whether your disk is churning hard while playing the game? And if you haven't already done so, you could maybe also try tweaking your system for that game using this:
<A HREF="http://avondell.com/ww2ol/basic1.html" target="_new">http://avondell.com/ww2ol/basic1.html</A>