>Someone told me something that seems pattently
>ridiculous to me. They claim (anecdotally) that
>they've seen "significant" speed improvements by
>not running batch programs in full screen mode.
>The further claim that the smaller they can make
>the screen size, the faster it runs.
>
>I'v not read anything, nor seen anything to support
>such a claim, but I'm wondering if any of you have?
>

If you're talking about running a FPDOS application in a Window rather than in full-screen mode, there are variations in video card driver performance that might make a difference, in all probability, most video acceleration mechanisms will be turned off in full screen mode in a DOS VDM.

Running a WinApp minimized but as the foreground task will likely run faster since only the virtual screen, and not the actual video memory, is being updated. I would not expect significant variations in performance in a normal vs maximized window.

If you eliminate all or most screen I/O in batch operations, they will run fater, since writing to the screen takes measurable time.