Terminals

[Bert Freudenberg]

On 01.08.2008, at 14:43, James Cameron wrote:

> On Fri, Aug 01, 2008 at 11:23:49AM +0200, Bert Freudenberg wrote:
>> http://dev.laptop.org/~bert/whiteonblack.tar.gz
>
> +1
>
> Works for me.  But.
>
> Odd that it is slower than an xterm for displaying a "ps ax" ...  
> 0.517s
> on 703 in the xterm, 3.068s in the text console ... why is it six  
> times
> slower?
>
> (The xterm being compared was "xterm -fa DejaVu LGC Sans Mono -fs 9  
> +sb
> -bg black -fg white" started within a Terminal activity.  Tested on a
> C2, which was idle.)
>
> Over to Alt/F2, the old font gives 1.359s for the text console.   
> Still,
> this default font is slower than the xterm.
>
> It must be due to the output device ... ssh to the C2, "ps ax" takes
> 0.073s.
>
> Not exactly a rock solid test ... does anyone else see similar?


Yes, the console feels rather slow. Guess the kernel is not using  
optimal blitting for scrolling (the X server is accelerated even). But  
then, I don't know how displaying/scrolling the console really works,  
hence, not pointing fingers ...

- Bert -