[Interest] Qt Quick Compiler

Portale Alessandro Alessandro.Portale at theqtcompany.com
Fri Nov 14 09:01:56 CET 2014


According to a quick test I did just now, with Qt 5.4-beta (Qt Quick Compiler 2.0) on msvc2013, it only re-compiles the changed qml files.

Best regards,
Alessandro Portale
________________________________________
Betreff: Re: [Interest] Qt Quick Compiler

Does the quick compiler only re-compile those QML files that were
changed or does it re-compile ALL QML every time regardless of changes
to the QML files or not?

On 11/13/2014 8:10 PM, Yang Fan wrote:
> I have not test the running improvement. But I can tell you that it slow
> down the build process significantly if you have many QML files. Every
> QML file will be converted to a cpp file which will be compiled, you
> know the C++ compiler is very slow.
>
> On Thu, Nov 13, 2014 at 11:42 PM, Harri Pasanen <harri at mpaja.com
> <mailto:harri at mpaja.com>> wrote:
>
>     Hi,
>
>     Are there benchmarks on how  much start-up time is improved with the Qt
>     Quick compiler?
>     Say I have 10000 lines of QML on Android, any idea how many percent gets
>     shaved off the start-up time?
>
>     Is the improvement identical across platforms, iOS, Android, desktop
>     ...?
>     Is the compiler itself fast, will it slow down the build/deploy cycle
>     significantly?
>
>
>
>     Curious,
>
>     Harri
>
>
>
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>
>
>
>
> --
> Regards,
> Fan Yang
>
>
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