On Thursday 07 October 2004 10:37, Felix Kühling wrote:
> On Tue, 5 Oct 2004 19:04:02 -0300
> "Paulo R. Dallan" <[EMAIL PROTECTED]> wrote:
<snip>
> There may be a problem with the new glxgears from X.org. When I run it
> alone I get the full framerate I can expect (~385 fps on ProSavage DDR).
> When I run a CPU hog at the same time ("while true; do true; done" in
> bash) The frame rate goes down to 10 fps and glxgears gets only 1% of
> the CPU. With the old glxgears from XFree86 the frame rate reduces to
> about 195 and the CPU is shared about 50:50 between glxgears and the
> CPU-hogging bash.
Also noticed that. I usually have some browser windows open when i run
glxgears. If they are running (loading), glxgears go deep down (especially
when starting X). My tests were made with no extra activity (only the xterm
and glxgears itself). I noticed that if I even move the mouse, the fps get a
(little) drop (something like 40 to 80 decrease).
> In order to draw any meaningful conclusions from the CPU usage with r200
> you need to change frame throttling to busy waiting. You can do that
> using driconf or on the command line with
>
> fthrottle_mode=0 glxgears
>
> Run top on a different terminal and see how much CPU is used by
> glxgears. It should be close to 100%. If significant CPU power is used
> by a different process that would explain the low FPS. If the CPU is
> idle then there might be something wrong with process scheduling in the
> kernel.
Well, did the test as you mentioned. When glxgears is running, it gets 1.6 or
2% of CPU, but X is getting 97 - 98%. Any conclusions from that?
As David and Mike mentioned, the FPS I'm getting with the hardware
acceleration enabled look like no (or low) hardware acceleration in fact.
And actually, without it, I get the same numbers: I just installed a fresh
Slack 10 and a local Debian-based distributions in other partitions to make
the test; with the general driver (default), I get 200 FPS; with the Radeon
driver that comes with the Slack distribution (it uses XOrg), I get the same
~400 FPS, but no hardware acceleration - I have not activated it (have to
check if I have the option, have not adjusted xorg.conf there yet) and
checked it with glxinfo, which confirmed the no direct rendering.
Thank you all for the help! If anyone remembers any new procedures I could
try, I'm ready to follow!
Best regards!
Paulo
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