Re: [dsdp-dd-dev] GUI elements redrawing when using Manual Update Policy

[Dmitri Pikus <DPIKUS@xxxxxxxxxx>]

Hi Pawel,

Thanks for explanation!

I plan to perform profiling at some
stage. Currently I am not sure at all that repainting mentioned represents
a problem.
If I see any performance problem with
it in future, I'll file a bug as you proposed.

Sincerely,
Dmitri Pikus

From:	Pawel Piech <pawel.piech@xxxxxxxxxxxxx>
To:	Device Debugging developer discussions <dsdp-dd-dev@xxxxxxxxxxx>
Date:	26/01/2009 19:32
Subject:	Re: [dsdp-dd-dev] GUI elements redrawing when using Manual Update        Policy.
Sent by:	dsdp-dd-dev-bounces@xxxxxxxxxxx

---

Hi Dimitri,
When in manual refresh mode, the view itself does still repaint.  
It's a design compromise, which allows the cache management logic to remain
more independent from the logic that generates viewer updates (i.e. model
deltas).  I haven't tried to dissect the performance hit of this behavior,
because it still satisfies our requirements for the manual mode.  For
our customers, what's important is that the IDE does not try to fetch the
debug data from the target, because the target could be remote or the connection
could be slow (e.g. serial interface).  So in comparison to fetching
data from the target, repainting the view is very fast.

If you find that repainting the view is an issue for your use cases, please
describe your use case and file a bug.  Disabling the view repaints
would complicate the view update logic further, but it's not impossible.

Cheers,
Pawel

Dmitri Pikus wrote: 

Hi All, 

I have the following question regarding several GUI elements redrawing
when using Manual Update Policy. 

Scenario: 
I run a loop with breakpoint on instruction inside of the loop. 
The breakpoint has Resume action with 0 sec. pause time attached to it.
'Threads Update Policy' is set to 'Manual'; 'Variables' view 'Update Policy'
is set to 'Manual'. 
  
Threads in Debug View and variables in Variables View are not updated ('Manual'
policy), BUT 
- Debug View title is changed to italics and back periodically;
- Debug toolbar items (Resume, Suspend, Terminate etc.) are blinking;
- Variables View title is changed to italics and back periodically;

Questions: 
1. Could a redrawing of GUI elements mentioned make a significant impact
on run time of a loop mentioned? 
2. I there a way to disable these GUI elements update?

Thanks! 

Sincerely,
Dmitri Pikus

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