Slow on Android

[ads42]

Hi,
I'm testing XE7 and MyDac.
For retrieving 9000 records (using a TMyQuery on Windows it takes less than 2 seconds.
On my new Galaxy Tab Pro (quad core) it takes about 16 seconds
Is there something specific I can do to improve speed ?
Regards

[ViktorV]

A lot of factors affect the difference in performance between desktop and mobile applications: network organization (LAN/WAN), CPU architecture, etc.. Therefore longer fetch time on Android in comparison to Windows applications is quite natural.
The TMyQuery component has the FetchAll and FetchRows properties, which default values are True and 25, correspondingly. If FetchAll = False, only FetchRows of rows will be read during the fetch of the TMyQuery.Open method.
The rest of the rows will be fetched by necessity.
You can read about it in the MyDAC help: http://www.devart.com/mydac/docs/devart ... tchall.htm

[ads42]

Thanks for your reply I have set it to false and still very slow I see no difference.
I use a TListView and a TBindSourceDB, could it be the reason ?

[ViktorV]

Our products performance doesn't depend on the components you specified. Please refer to the Embarcadero documentation to learn how to use these components correctly.