On Jul 27, 11:26 am, DA Morgan <damor..._at_psoug.org> wrote:
> dean wrote:
> > Hello all,
>
> > We are attempting to improve performance of a Windows app that
> > performs a fair amount of networking, loading up grids and tables,
> > opening data sources, etc. The database resides in Calgary, Canada,
> > while the app is based in Toronto, 2000 miles away. The responsiveness
> > of the app is not sooooo bad, one can scroll between rows of a
> > databound grid at 1 per second, but generally it needs to be sped up
> > or we'll have to go to some kind of remote access system and put the
> > app next to the server.
>
> > So, I have two questions on if and how this process could be sped up:
>
> > 1. Until now we have used the MS driver for Oracle, instead of the
> > Oracle driver for Oracle, since there were some issues with the oracle
> > driver. Over long distance, is there any advantage of using the Oracle
> > driver over the microsoft?
>
> > 2. Either way, are there any parameters in the driver settings (such
> > as buffer size), that would be worth investigating for speed
> > improvement?
>
> > We are using 10g 10.2.0.2.0, and the client uses ADO from a Borland
> > app on Windows XP.
>
> > Thanks for any suggeestions.
>
> > Dean
>
> Database version?
> What tool was used to create the front-end?
> Are records cached on the client? If not why not?
>
> The rule of thumb for delay is 1ms/33 miles so any delay significantly
> in excess of 60ms is an issue.
> --
> Daniel A. Morgan
> University of Washington
> damor..._at_x.washington.edu (replace x with u to respond)
> Puget Sound Oracle Users Groupwww.psoug.org- Hide quoted text -
>
> - Show quoted text -
All data loaded into databound components (such as grids) are cached,
I believe. The CacheSize parameter in the data components (TADOQuery)
is set to 100 to 10,000 in various different components.
Version is mentioned above - 10.2.0.2.0
Used Borland CBuilder 6
Received on Fri Jul 27 2007 - 12:49:43 CDT
