On Tue, Oct 09, 2007 at 07:29:46PM +0200, Matthias Franz wrote:
On Tue, Oct 09, 2007 at 05:25:09PM +0200, Johannes Hofmann wrote:
On Mon, Oct 08, 2007 at 10:23:22PM +0200, Matthias Franz wrote:
Fine! Only using the arrow keys is quite slow and consumes all CPU time on my machine. In contrast, srolling with the old Dillo was quick and produced almost no CPU load.
It is slow, because the default linesize (the amount a scrollbar scrolls when pushing on the arrow is 1. I could change that, but what would be a reasonable value? Apart from that it should not consume all CPU time. It doesn't here. On which html page do you test?
It occurs on any page where you can scroll.
Is it in a remote X11 session?
no
It might perhaps depend on the keyboard repeat rate.
I think my keyboard rate is normal.
Does it also happen, when you keep the arrow on the scrollbar pressed?
Yes. It happens as well when you move the scrollbar with the mouse (while pressing the left mouse button).
Here it gets down to 10% idle when keeping the arrow pressed with vanilla dillo-fltk. With my patch it stays at 99% idle. This is on a Pentium-M forced down to 600MHz.
Today I noticed that other features of dillo-fltk are also slower than before. For example, I get approximately a 50% CPU load just by moving the pointer repeatedly back and forth over a link so that the pointer constantly changes from the "arrow" shape to the "hand" shape and back. When I do this with the old dillo the CPU load remains around zero. (I have an AMD Athlon prcessor running at 660 MHz.) I don't know whether this is a problem with dillo, fltk or just with my machine (Debian Etch).
It might have to do with your X11 installation or Xft configuration. Do you see antialiased fonts?
Do other people observe this problem as well?
Cheers, -- Matthias Franz
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