Re: Display Rendering Problem

If the problem persists, then you'll have to look at the HAL/OAL code, then,
perhaps adding debug messages to lots of places in the code to try to figure
out where it is when things go slow. You're using the BSP for the reference
design board? And that's the board that you're using, right? You have all
of the interrupt sources set up properly?

Paul T.

"Arun" <aruneceb_2002@xxxxxxxxxxx> wrote in message
news:1155099632.592306.187140@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Yes, I am aware of the multitasking of Windows CE OS.
I have also simulated the problem after removing the platform specific
drivers except display driver.

Yours,
Arun.

Paul G. Tobey [eMVP] wrote:
Do you understand that Windows CE is a multi-tasking operating system?
What's happening in the frontmost application is *not* the only thing
that
is happening. If you have a thread running in a driver, in the kernel,
or
in a background application which is chewing up a lot of processor cycles
and if that thread is high-priority (higher than the foreground
application), you *will* get delays.

Paul T.

"Arun" <aruneceb_2002@xxxxxxxxxxx> wrote in message
news:1155014324.785734.163890@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hai Paul,

The below said problem is not only in my code but also in the windows
CE resident codes, that is the applications like
1. Network Configuration in Control panel : When we choose the option
between DHCP and static IP, the UI response delay can be visualized at
one time and at other time it works fast.

2. System Properties in Control panel : When we traverse between
different tabs in the system properties, the same problem occurs.

Yours,
Arun.

Paul G. Tobey [eMVP] wrote:
Almost anything 'can' be true, yes. You have no indication of slow
operations when the display response is slow at all? That seems very
strange. Check for any Kernel IOCTL handlers that might be taking a
long
time or any real-time priority threads in your own code.

Paul T.

"Arun" <aruneceb_2002@xxxxxxxxxxx> wrote in message
news:1154957059.731320.143070@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hai Paul,

I have built the OS with Debug option, but I cannot get any clue of
my
problem.
Because, it seems that none of the thread is pulling the processor
resource.

Also, at some times, when the OS is up, initially the response is
faster and after sometime, it results in slow response (which is the
inverse of the below problem).

I suspect it may be the display driver problem related to the memory
handling or so.
Can it be true. Awaiting for the feedback.

Yours,
Arun.


Arun wrote:

Hai Paul,

Thanks for your kind concern.

Also, initially it is Slow, then after some time it is fast and
again
it drops to slow UI response that surprises me.

Anyway let me check with your suggestions.

Yours,
Arun.

Paul G. Tobey [eMVP] wrote:
During boot, lots of things other than just drawing the display
are
happening, mounting external filesystems, initializing the
network,
etc.
There's no way that we can predict which of those or of the many
other
possibilities might be causing the load on the processor. Build
a
debug
build of the OS and see what debug messages you see while things
are
slow is
all I can suggest...

Paul T.

"Arun" <aruneceb_2002@xxxxxxxxxxx> wrote in message
news:1154688342.859583.321790@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hai Greats,

Platform :
SW : Windows CE 5.0.
HW : 400MHz DBAu1200 Board (MIPS II platform).

Problem : The display rendering is slow as soon as the OS is up
and
running. After that (say 3-4 mins), the display seems to be
fast.
So,
there exists an inconsistent UI response (speed and slow).

What will be the root cause for the above problem ?.

Thanks in advance.

Yours,
Arun.






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