Re: [MiNT] Netsurf and profiling its performance

[Ole <ole@monochrom.net>]

Am Donnerstag, den 18.04.2013, 11:57 +0200 schrieb "J. F. Lemaire" 
<jflemaire@skynet.be>:

> I can't back up what I'm about to say with anything helpful right now
> but quite often I'm under the impression that NetSurf redraws the 
> same
> rectangle several times. For example, when the download dialog is
> displayed. I'll try to find some time to work out a test case.

Ok, that's not the perfomance issue I'm interested in. Redraws of the 
Download window
can be improved without much trouble, by just redrawing the variables 
within the
download dialog (right now a complete objc_redraw(Full Area) is done.
(http://git.netsurf-browser.org/netsurf.git/tree/atari/download.c at 
Line 130)

Personally I don't mind if the download window is flickering. But I 
will have a look
if it is redrawing the dialog twice for each change in the download 
status,
that would be nonsense for sure. Or did you mean that also the content 
is redrawn
when the download window is open?

I'm more interested in the performance when doing: redraws / resizing 
and converting bitmaps / freeing up
graphics memory / polling the AES.

To analyse the netsurf core, also the netsurf-libs would have to be 
compiled with debug symbols...
I'm not sure if it worth spending time on it, because you can also 
analyse performance of the netsurf core/libs
by running the linux version and some tool to analyse performance...

Greets,
Ole