[Interest] Question to members of the Qt team: why does an empty project consumes so much memory on iOS?

[Nuno Santos]

Robert,

I could but it is useless. I need qml, the whole app view is written on it.

Regards,

--
Nuno Santos

No dia 21/04/2015, às 12:53, Robert Iakobashvili <coroberti at gmail.com> escreveu:

>> On Tue, Apr 21, 2015 at 2:43 PM, Nuno Santos <nunosantos at imaginando.pt> wrote:
>> Harri,
>> 
>> That doesn’t make sense. Simulator is just displaying the real resolution of
>> the device. In retina case 2048x1536. Why would it display something 2.5
>> times bigger for no apparent reason.
>> 
>> I have an iPad 2 and my app was designed in a 1024x768 base. My tests on a
>> real device were on this base. The app memory usage on this conditions on
>> the iPad are about 50Mb.
>> 
>> When we go to retina display, the problem is that the display cache
>> multiplies by 4 because the resolution has doubled in both axis. This leads
>> to an increase in memory. This is my guess.
>> 
>> I also think that Qt is loading all the libs at once. I cannot explain such
>> a big memory footprint for an empty app.
>> 
>> I would like some insights from Qt dev people.
>> 
>> I have been analysing, code portion by code portion and I have already found
>> out interesting things that I will share later.
>> 
>> Regards,
>> 
>> Nuno Santos
>> Founder / CEO / CTO
>> www.imaginando.pt
>> +351 91 621 69 62
> 
> Dear Nuno,
> 
> Have you tried to compare widgets-only project (there are may examples)
> versus a Qml project?
> Thanks.
> 
> Kind regards,
> Robert
> 
> Regards,
> Robert
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