On 03/11/2013 07:32 PM, Riccardo Ferrazzo wrote: > Hi, > > We have included QtQuick.LocalStorage into the calculator application to > provide data persistency. But i think that LocalStorage is not so fast ( > ~250ms for the insert operation on a dual core 4y old laptop ). > I think that is better to manipulate the database only when the application > is > about to be closed or opened to avoid lags and slowdowns in the user > interface, so i've moved every storage call at startup or shutdown. > > To test the actual speed of the LocalStorage APIs i've added a benchmark in > the unit-tests subfolder of the calculator application, if someone has the > knowledge needed to get that code and run it on a real device it will be good > for developers. > > Current changes are still not merged, i'm talking about storage-improvements > branch. >
Hi, you might want to offload the db commits to a WorkerScript: http://qt-project.org/doc/qt-5.0/qtqml/qml-qtquick2-workerscript.html As Dalius pointed out before it is the speed of the C in ACID that is hampering the performance. Happy hacking, frank. -- gplus.to/frankencode frankencode@freenode -- Mailing list: https://launchpad.net/~ubuntu-touch-coreapps Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-touch-coreapps More help : https://help.launchpad.net/ListHelp
