[NCLUG] XFree86 4.1.0 slow compared to 3.3.6?

[dmiles]

does it slow down over time or does it start out slow?

On Thu, 22 Nov 2001 00:27:38 -0700, Tkil <tkil at scrye.com> wrote:
> 
> [i posted this to BLUG earlier today; apologies to anyone who gets it
> twice.  when i get a chance to track it down, i'll try to post a
> summary to both lists.  thanks!]
> 
> my box got hacked this weekend, so i took the opportunity to upgrade
> to the latest and greatest KRUD (2001-11).  most things are working
> happily, but i've noticed that many things in X seem *much* slower
> than before.  i don't have hard numbers handy, but things like
> graphics scrolling (as in mozilla) and even just moving whole windows
> (i use fvwm2, so i just move an outline -- but the repainting of the
> window in the new location is noticably slow) are both much slower.
> 
> any ideas?  the video hardware hasn't changed: it's a matrox G200 AGP
> card (16MB memory, i think).  i'm using the same resolution (a rather
> odd 1360x1024, closer to 4:3 than 1280x1024 is) as before, same
> monitor, and same mode line for that matter.
> 
> i have a few hypotheses, but i don't have a good way of checking them
> out offhand:
> 
> 1. the new X server isn't set up for acceleration properly.
> 
> 2. i'm using the frame buffer x server, not the one specifically for
>    my card.
> 
> 3. the kernel (2.4.9-7) is slowing things down somehow (AGP not set up
>    correctly, DRI weirdness, who knows).
> 
> 4. the new X is much more sensitive to screen size than before, and
>    can only accellerate on the 256 block boundaries.
> 
> 5. screen depth of 24 is causing issues; maybe i should try 32 again.
> 
> does anyone have other suggestions?  it's not too bad yet, but it is
> slow enough to be very noticable.
> 
> thanks,
> t.
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