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Embedded Linux 1-Second Cold Boot To QT
An anonymous reader writes "The blog post shows an embedded device cold booting Linux to a QT application all in just one second. This post also includes a link which describes what modifications were made to achieve this."
...booted in about 5 seconds, and that was to a general desktop.
And my toy homebrew OS boots to a primitive UI in under 2 seconds after BIOS, and much of that is running interpreted bytecode.
The fact is that a full BIOS + Linux / Windows system is a horrible fucking mess of bloat, but part of it is the price you pay finding and initialising all those millions of third party devices your old/embedded device isn't going to need to worry about.
Still, as always, I believe any engineer's claim not before I get to test it myself.
Its good to see a fun tech article like this on /. I haven't seen any in a while (maybe its just me).
I assume that during boot time, the Qt UI and low level hardware modules are loaded immediately. Then other modules and services can be loaded later on such as networking, video capture drivers and other lower priority services. I also assume the UI is not based on X but a Qt implementation that is directly drawing to the frame buffer.
Lately I have been on a bit of an embedded systems kick playing around with PLC's and embedded micro controllers. This is a great article.