Performance issue

Ian Romanick idr at us.ibm.com
Mon Jan 30 09:22:11 PST 2006


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Michael Stather wrote:
> Roland Scheidegger schrieb:
>> Michael Stather wrote:
>>
>>> I´ve a Radeon 9250 with an athlon 1ghz and your "radeon" driver.
>>> Direct rendering is enabled (as glxinfo returns) but the performance
>>> is very low,
>>> e.g. quake 3 isn´t playable, neither are simple games like neverball
>>> or tuxracer.
>>> I´ve heard from other users as well as from tests that the performace
>>> is well enough to play q3 (about 5fps),
>>> while I get only about 5fps.
>>> What could be the reason?

[snip]

> I did some additional tests and found out that only neverball and torcs
> aren´t playable, q3 is (sorry I thought q3 would also not be playable).
> But this is strange since thay have a much simpler graphics as q3 has.
> If q3 has a decent framerate these "home-made" games should work also.
> My card is an AGP one, I don´t know whether it´s a 64-bit one or not.
> Do you have any explanation for that?

5fps in Quake3 doesn't sound like hardware accelerated rendering.
What's the output of the following command:

glxinfo | grep direct

If it's "direct rendering: No", then you're getting software rendering.
 That would explain why it's so slow. :)  Of course, that doesn't
explain why you're getting software rendering, but it's a step.

Or are you now saying that Quake3 gets a reasonable framerate but the
other games get 5fps?  If that's the case, then I'm not sure what the
problem might be.

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