Windows XP Embedded execution speed issues

[Guest]

Hello,
I have a question about the general performance of applications running on
Windows XP Embedded compared to Windows XP Professional.

I've built Windows XP Embedded run-time image and have recently ported a
computing-intensive application to it. It's Win32 program that performs some
signal processing.

I am using the following setup:
- My PC has two hard drive partitions 20GB for Windows XP Professional and
12GB for Windows XP Embedded
- I am using Intel Pentium M processor (1600 MHz with 1.0 GB of RAM)
- Windows XP Embedded run-time image includes Service Pack 2

When comparing the results between a run of my application on Windows XP
Embedded and Windows XP Professional, I've found that on Windows XP
Professional, my program runs more than twice as fast.

Thanks in advance,

-M

 

[Guest]

What springs to mind is *Drivers*. Having the correct drivers can play huge
part in performance. Ie: IDE Controllers, The right Intel Chipset driver,
other 3rd party miniture apps that are said to boost performance.

You may have satisfied Device Manager in terms of having a driver, having
the right one is another thing. One example is ATI Video Drivers. So called
"Universal Driver Packages" but yet you still need a seperate driver for
Laptop versions of a video card. I'm not 100% sure but the laptop version of
a video card uses slightly different drivers. Perhaps similar enough to
satisfy the device manager.

Assuming you used the very same drivers as on your XP setup, I can't think
of any other reason.

Have you read your setupapi.log and fba.log?