re: SLOW running dos program in XP
Sunday, February 8, 2004 at 8:12 am
Windows XP Annoyances Discussion Forum
Posted by morley
(36 messages posted)
Hi JB. Well now you've gone and done it! I am beginning all over again to try and
get to the bottom of this. And I have discovered something about my situation.
It seems as though, while trying to check resource usage etc, my application WILL
run properly when it is minimized or in a small window. At full screen the program
bogs down. iF I change the display option to "window" instead of "full screen"
in my program properties, the app runs the way it is supposed to. I began to check
display settings long ago as I know that some dos programs run better at 256 colors
etc. Altho that had nothing to do with my problem, while fooling around with display
settings, I wanted to see what happened with the program when it was minimized/half-window.
So, what does all this mean? Probably that I am an idiot and have missed some little
detail--that still eludes me!! Any thoughts?
On Saturday, February 7, 2004 at 2:07 am, JB wrote:
>Hello Morley
>I am convinced that you and I are suffering from the same effect. My DOS program
>has been used for years with no problem, then a colleague and I using the same program
>on 2 different machines running XP, had a similar experience to yours: it ran properly
>for a time, then for no obvious reason, it just crawled every time it was run. I
>am afraid my remedy is probably not an option for you. Instead of using a DOS for-loop
>calling a second DOS program to create a data file for a C++ program, I sent DIR
>output to a file to input to the C++ program, and modified the C++ program to do
>what the second DOS program been doing. So I have avoided the problem, but not solved
>it. I think my slowness was associated with a DOS program calling another DOS program
>in a loop, particularly as the second DOS program which was being called repeatedly
>appended to a single output file. It looks as though it is possible for another
call
>to start execution before the previous one had finished, and the system was fighting
>itself over the output file. But I have no theory about why the behaviour changed,
>that must be something connected to the working of XP. I would be interested to
know
>what sort of operations your DOS program was doing; it may give a further clue to
>the cause of the slowness. I hope between us we may be able to work this out.
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