Re: [Development] Qt 5.0 Beta Performance

2012-09-01 Thread Bradley Smith
I'm seeing the same constantly busy CPU on Windows XP with a NVIDIA GeForce GT 220 and driver version 301.42. Changing the vertical sync setting int the NVIDIA Control Panel has no effect. I'm using the Qt 5.0 Beta 1 binaries from http://releases.qt-project.org/qt5.0/beta1/. Bradley

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Peter Kümmel
On 30.08.2012 18:16, Thiago Macieira wrote: > On quinta-feira, 30 de agosto de 2012 17.25.24, Pau Garcia i Quiles wrote: >> There are more differences than that. There are differences in >> features, such as threading support, large-file support, etc. >> Mingw-w64 is usually ahead of any other in t

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Peter Kümmel
On 31.08.2012 09:02, Pau Garcia i Quiles wrote: > >> All those MinGW and forks contain mingw32-make.exe util which does have -j >> option, but in fact this option doesn't make the real parallel build. Maybe >> sh.exe is needed, but this shell util will pass the incompatible path string >> so that t

Re: [Development] Qt 5.0 Beta Performance

2012-09-01 Thread Markus Penttilä
> Any thoughts on this ? Perhaps worth checking that you have vsync enabled on graphics driver's settings. Scenegraph leans on vsync, so potentially the animation loop would run quite wild if there was no binding to actual display refresh rate. Hth, Markus

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Peter Kümmel
On 01.09.2012 12:52, Thiago Macieira wrote: > On sábado, 1 de setembro de 2012 12.47.15, Peter Kümmel wrote: >> So you think it is possible to use DW2 for 32 bit binaries? > > Yes. > >> What happens if a binary compiled with GCC/DW2 calls a >> C++ function in a Dll compiled with MSVC and this funct

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Thiago Macieira
On sábado, 1 de setembro de 2012 12.47.15, Peter Kümmel wrote: > So you think it is possible to use DW2 for 32 bit binaries? Yes. > What happens if a binary compiled with GCC/DW2 calls a > C++ function in a Dll compiled with MSVC and this function > throws an exception? First of all, how did you

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Peter Kümmel
On 01.09.2012 12:47, Peter Kümmel wrote: > On 01.09.2012 12:39, Thiago Macieira wrote: >> On sábado, 1 de setembro de 2012 12.23.31, Peter Kümmel wrote: >>>"As a general rule, you should choose the default SJLJ packages, >>> unless you know you need faster exception handling and can

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Peter Kümmel
On 01.09.2012 12:39, Thiago Macieira wrote: > On sábado, 1 de setembro de 2012 12.23.31, Peter Kümmel wrote: >> "As a general rule, you should choose the default SJLJ packages, >>unless you know you need faster exception handling and can guarantee >>you'll never need to unwind

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Thiago Macieira
On sábado, 1 de setembro de 2012 12.23.31, Peter Kümmel wrote: > "As a general rule, you should choose the default SJLJ packages, > unless you know you need faster exception handling and can guarantee > you'll never need to unwind through non-DW2-compiled stack frames > (such

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Pau Garcia i Quiles
> SEH & 32 : patented by MSFT It's actually Borland's patent and Borland said they only patented that to defend themselves from third-party attacks, they have no interest in attacking gcc: http://web.archive.org/web/20070818053531/blogs.codegear.com/dcc/archive/2005/05/12/4294.aspx I wonder if

Re: [Development] Choosing a new MinGW for Qt 5

2012-09-01 Thread Peter Kümmel
On 30.08.2012 18:16, Thiago Macieira wrote: > On quinta-feira, 30 de agosto de 2012 17.25.24, Pau Garcia i Quiles wrote: >> There are more differences than that. There are differences in >> features, such as threading support, large-file support, etc. >> Mingw-w64 is usually ahead of any other in t

[Development] Harmattan - QtJsBackend/V8 build issues

2012-09-01 Thread Laszlo Papp
Hi, Can reproduce by manually running the "../../bin/mkv8snapshot generated-release/snapshot.cpp" command. Laszlo g++ -c -g -O2 -O2 -w -std=c++0x -fvisibility=hidden -fvisibility-inlines-hidden -D_REENTRANT -fno-exceptions -fPIC -DQT_NO_LIBUDEV -DQT_BUILD_V8_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_

Re: [Development] Importing (mobile) qt-components to gerrit

2012-09-01 Thread Laszlo Papp
On Mon, Aug 27, 2012 at 9:27 AM, wrote: > Hello, > > ** ** > > From Symbian development, I see no problem in moving into such mode that > people can easier contribute stuff – such as Gerrit. Now the question is > who starts driving this migration. Can the maintainers of Qt Quick > Components

Re: [Development] Qt 5.0 Beta Performance

2012-09-01 Thread simon.hausmann
I've observed the same with Nvidia and the samegame, but I've seen the same process eat just a few percent two months ago. I'm confident that it's just a plain old bug instead of a fundamental problem with Qt 5's architecture :) Simon -- Sendt fra min Nokia N901.09.12 08:05 skrev ext David Boos