EPIA-M HW graphics slow under linuxbios

[Dmitry Borisov]

Hi,
I have taken freebios from CVS and applied the patch from here
http://www.clustermatic.org/pipermail/linuxbios/2003-July/004046.html to enable VGA. It works perfect. Exactly what I need.
The major problem with such a build is that directfb( it uses HW accelaration extensively ) works 2 times slower. Even though it still uses it as without acceleration it runs 10 times slower...
I'm wondering what could cause such a slow performance ? Does anyone have any suggestions ?
( It seems all other pure memory/disk programs are not affected )
Dmitry/

[ron minnich]

well we obviously have more to do here. Somebody want to do some register 
dumps and see what it could be? I have no EPIA-M.

Work on bios emulation continues ...

ron

[Dmitry Borisov]

Do you have a script I can run ?
Dmitry/

----- Original Message ----- 
From: "ron minnich" 
To: "Dmitry Borisov" 
Cc: 
Sent: Wednesday, January 28, 2004 8:32 PM
Subject: Re: EPIA-M HW graphics slow under linuxbios
> well we obviously have more to do here. Somebody want to do some register
> dumps and see what it could be? I have no EPIA-M.
>
> Work on bios emulation continues ...
>
> ron
>
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios

[ron minnich]

On Thu, 29 Jan 2004, Dmitry Borisov wrote:
> Do you have a script I can run ?

just lspci -xxx in linuxbios and standard bios.

ron

[Dmitry Borisov]

Here we go...
Dmitry/

----- Original Message ----- 
From: "ron minnich" 
To: "Dmitry Borisov" 
Cc: 
Sent: Thursday, January 29, 2004 6:52 PM
Subject: Re: EPIA-M HW graphics slow under linuxbios
> On Thu, 29 Jan 2004, Dmitry Borisov wrote:
> > Do you have a script I can run ?
>
> just lspci -xxx in linuxbios and standard bios.
>
> ron
>
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios

[Stefan Reinauer]

* Dmitry Borisov  [040129 05:07]:
> Hi, I have taken freebios from CVS and applied the patch from here
> http://www.clustermatic.org/pipermail/linuxbios/2003-July/004046.html
> to enable VGA. It works perfect. Exactly what I need.  The major
> problem with such a build is that directfb( it uses HW accelaration
> extensively ) works 2 times slower. Even though it still uses it as
> without acceleration it runs 10 times slower...  I'm wondering what
> could cause such a slow performance ? Does anyone have any suggestions
> ?  ( It seems all other pure memory/disk programs are not affected )
> Dmitry/

Just guessing ...
Maybe an MTRR entry is missing? Does the epia connect it's graphics with
an (AGP) bridge? Maybe the bridge is not at full speed?

Stefan

[Dmitry Borisov]

How to verify what you're saying about AGP bridge ?
Are ther any utilities or something ? 
Let me know if I can do some research and where to look.
Thanks,
Dmitry/

----- Original Message ----- 
From: "Stefan Reinauer" 
To: "Dmitry Borisov" 
Cc: 
Sent: Thursday, January 29, 2004 2:22 AM
Subject: Re: EPIA-M HW graphics slow under linuxbios
> Dmitry Borisov  [040129 05:07]:
> > Hi, I have taken freebios from CVS and applied the patch from here
> > http://www.clustermatic.org/pipermail/linuxbios/2003-July/004046.html
> > to enable VGA. It works perfect. Exactly what I need.  The major
> > problem with such a build is that directfb( it uses HW accelaration
> > extensively ) works 2 times slower. Even though it still uses it as
> > without acceleration it runs 10 times slower...  I'm wondering what
> > could cause such a slow performance ? Does anyone have any suggestions
> > ?  ( It seems all other pure memory/disk programs are not affected )
> > Dmitry/
>
> Just guessing ...
> Maybe an MTRR entry is missing? Does the epia connect it's graphics with
> an (AGP) bridge? Maybe the bridge is not at full speed?
> Stefan
>  Stefan Reinauer, SUSE LINUX AG
>
> Teamleader Architecture Development
> _______________________________________________
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios