Risto Avila

Fast-Booting Qt Devices, Part 4: Hardware Matters

Published Tuesday August 30th, 2016 | 2 Comments on Fast-Booting Qt Devices, Part 4: Hardware Matters
Posted in Automotive, Boot time, Embedded, Performance

Welcome back! A while ago, I posted three parts of Fast-Booting Qt Devices blog post series where we showcased 1,5 second boot-time, optimized the Qt application and finally showed you how we optimized the entire Linux stack. Today, we will show you that hardware selection and hardware architecture in general can have a big impact […]

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Iris Yamashita

Qt @ NXP FTF 2016

Published Friday May 13th, 2016 | 2 Comments on Qt @ NXP FTF 2016
Posted in Biz Circuit, Community, efficiency, Embedded, Events, News, Performance

The Qt Company is a Silver Sponsor with Adeneo Embedded at NXP FTF Technology Forum 2016 where inspiration, training, ecosystem and expertise you need will be provided to boldly face the challenges and opportunities from new markets and ever-changing technologies.    NXP FTF Technology Forum 2016 May 16-19, 2016 JW Hotel, Austin Register today    The Qt Company, Adeneo […]

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Mitch Curtis

Qt Quick Controls Re-engineered – Status Update

Published Monday November 23rd, 2015 | 56 Comments on Qt Quick Controls Re-engineered – Status Update
Posted in Dev Loop, Performance, Qt, Qt Quick, Qt Quick Controls

Since announcing research on Qt Quick Controls optimized for embedded use, we’ve made good progress towards achieving feature parity with the original Qt Quick Controls. We’ve also added some new controls that didn’t exist (Drawer, RangeSlider, and SwipeView, to name a few). The previous blog post cited performance reasons as the motivation for having one fixed style. However, we […]

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Qt Weekly #25: Optimization hints on Qt Data Visualization

Published Tuesday February 10th, 2015 | 5 Comments on Qt Weekly #25: Optimization hints on Qt Data Visualization
Posted in OpenGL, Performance, Qt Data Visualization | Tags: ,

On Qt Data Visualization 1.1 we introduced a beta level optimization hint QAbstract3DGraph::OptimizationStatic and on 1.2 release the feature is fully supported. On this blog we’ll try to explore this optimization a bit more. We have also been asked how many items you can render on scatter graph. We hope that this blog answers to […]

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Kai Koehne

Qt Weekly #4: Benchmarking Code

Published Thursday April 3rd, 2014 | 1 Comment on Qt Weekly #4: Benchmarking Code
Posted in Performance, Qt | Tags: , ,

Qt provides several built-in ways to benchmark the runtime costs of code. Let’s have a quick glance at the most common ones. There comes a time in every non-trivial application when performance starts to matter. In fact, it’s common for developers to pro-actively try to mitigate this by doing micro-optimizations, and aiming for optimized coding […]

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Getting more out of Qt on Windows Embedded Compact 7 & ARM processors

Published Tuesday January 29th, 2013 | 12 Comments on Getting more out of Qt on Windows Embedded Compact 7 & ARM processors
Posted in Build system, Compilers, Embedded, Performance, Qt

At the moment most of the buzz is probably around Qt5, but it is good to remember that Qt4 is still alive. While we are working to increase platform coverage on Qt5, there are still some platforms that are officially supported by Digia only with the Qt4 codebase. One of those platforms is Windows Embedded […]

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Render Thread Animations in Qt Quick 2.0

Published Monday August 20th, 2012 | 12 Comments on Render Thread Animations in Qt Quick 2.0
Posted in Performance, Qt Quick 2

One of the shortcomings of the Qt Quick API is that despite having a dedicated rendering thread, our animations are always running on the GUI thread. Running animations outside the application’s main thread has the advantage that it greatly reduces jerkyness as operations that block the main thread will not hinder the animations from running. […]

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QCoreApplication mini benchmark

Published Tuesday August 14th, 2012 | 28 Comments on QCoreApplication mini benchmark
Posted in Performance, Qt

For robustness and security reasons, it often makes sense to split functionality into various smaller binaries (daemons) rather than having a few big and monolithic applications. Qt 4 introduced modularized Qt libraries in order to enable Qt based daemons that don’t require any GUI. Thanks to the strong embedded focus and several sane architecture decisions, […]

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Debugging Qt Quick 2 – Console API

Published Thursday March 1st, 2012 | 10 Comments on Debugging Qt Quick 2 – Console API
Posted in Debugging, Performance, Qt Quick, Qt Quick 2, QtCreator

Qt Quick brings a lot of flexibility and speed to development. Traditionally one had to do the “compile, package, deploy, run” cycle over and over again, whereas with Qt Quick you can now do incremental changes to your source even at runtime! In Qt Creator, we are trying to leverage the power of Qt Quick, […]

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