Hi, Qt's postponed opensourcing Qt Quick Compiler but prepared a caching system instead (should be similar to what Pat's described). You can read more here: http://blog.qt.io/blog/2016/09/05/qt-5-8-alpha-released/
Regards, Andrew On Tue, 22 Nov 2016 at 17:05 Pat McGowan <[email protected]> wrote: > Some time ago we did an benchmark of compiled apps vs the QML caching we > currently use and found little difference in startup performance. Qt is > working on an improved version 2 of the compiler but as far as I know it is > scheduled for release with 5.8 or 5.9. > > To be clear the first time an app is run we create a cache for the QML and > javascript elements so they are not interpreted on subsequent runs. This > saves at least 50% on most apps. We have also been tuning the code for our > own apps to improve startup times as poor design is generally the biggest > contributor to slowness. > > We also looked into using an app launching daemon type of approach to > preload some of the runtime, but this is quite difficult given our strict > app confinement model and requires changes to apparmor. We also found it > did not result in significant savings. > > As for QtQuick controls 2, the sdk team is migrating our toolkit toward a > common set of components and working with upstream on this. > > Pat > > On Tue, Nov 22, 2016 at 6:15 AM, Roman Shchekin <[email protected]> wrote: > > Hello > > I proposed this some time ago and was told that some work already in > progress. I hope it is true. > BTW, what about QtQuick controls 2.0? > > Daniele Laudani <[email protected]> | От: 21 нояб. 2016 г. 22:35 | > Сообщение: > > Hello, > > I was wondering if there were already some plans on using Qt Quick > Compiler to pre compile qml files and improve app performance ( > https://doc.qt.io/QtQuickCompiler/). > I see that, for now, it is closed source and only available for commercial > licenses of Qt, however it looks like they are planning to open source it > in the next release 5.8 ( > https://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ > ). > What are your thoughts about this? > > Cheers > > > -- > Mailing list: https://launchpad.net/~ubuntu-phone > Post to : [email protected] > Unsubscribe : https://launchpad.net/~ubuntu-phone > More help : https://help.launchpad.net/ListHelp > > > -- > Mailing list: https://launchpad.net/~ubuntu-phone > Post to : [email protected] > Unsubscribe : https://launchpad.net/~ubuntu-phone > More help : https://help.launchpad.net/ListHelp >
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