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eduardofleury.com Archives: August 2008

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21 August 2008

Improving QEdje and Qt performance with nvidia drivers.

Hey all,
You may have been following the buzz around bad 2D performance of nvidia-drivers, specially with KDE 4. Well, I found out that QEdje was running slower than it could on my machine due to the same reason.
Zack Rusin released yesterday a nice benchmark utility for Qt, QGears2, which I used to measure the effect [...]

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20 August 2008

emerge world reinstalling everything… not anymore :-)

I’m running ~x86 Gentoo here, eix-sync && emerge -Dav world every few days till something strange started happening. Portage wanted to reinstall everything, I mean, hundreds of packages to the same version as before, no new use, no new anything, just reinstall all packages for the pleasure of compiling and heating up my Macbook pro [...]

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20 August 2008

Running x11perf on Maemo (N800)

Hi all, this post is about some benchmarks we did on Nokia’s N800 device to measure the performance of XShmPutImage on this hardware.
I’ve been working on the QEdje project and, while studying possible optimizations, our team was interested in measuring whether we could benefit from using MIT’s X11 shared memory extensions. Among other tests, I [...]

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4 August 2008

KDE unresponsible after screensaver is locked for several hours.

Hi all, I’m currently using Gentoo ~x86 on a Macbook Pro and I’d been facing a really annoying bug for sometime before I could apply a workaround to it.
The bug sympthons are a very unresponsible system after leaving the screen locked for several hours, ie. all night, for instance, simply unlocking it was almost impossible. [...]

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