On Wednesday 28 May 2003 10:11 am, Ernie Schroder wrote: > On Wednesday 28 May 2003 09:49 am, Hemmann, Volker Armin wrote: > > On Wednesday 28 May 2003 09:25, Patrick Marquetecken wrote: > > > Hi, > > > > > > I have followd the 'bughunting tread' and have notist that my > > > fast writing also is not working, and its enabled !. > > > > > > Is this because the host-bridge does not Support fast writing ? > > > > yes. > > Both the card and the AGP-part have to support Fw (or SBA) to be > > able to enable it. > > > > You can not switch something on, that is bot there. > > Maybe a different bios will help you, maybe newer drivers, maybe > > nothing. > > > > It does not matters. > > Fw&SBA do not give any noticable speed gains. The differences are > > in the range of statistical noise. > > > > On the other hand, Fw&SBA makes a pretty fine system unusable. Ever > > heard of lockups? I mean, frequent ones? Hourly? > > > > I had that, disabling FW in the bios, killing the options-line.. > > system was back stable. Speed gain? No! Problems? Oh yeah! > > > > Don't be worry, you don't miss anything without SBA&Fw. > > > > Glück Auf, > > Volker > > > > > > -- > > [EMAIL PROTECTED] mailing list > > I decided to test whether or not fastwrites made a difference on my > system. I commented the line: > #options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1 > in /etc/modules.d/nvidia, closed the X session, did: > # modules-update and restarted X > a # cat /proc/driver/nvidia/agp/status shows: > nvidia $ cat agp/status > Status: Enabled > Driver: NVIDIA > AGP Rate: 4x > Fast Writes: Enabled > SBA: Enabled > What am I missing?
OK a reboot solved that... Now, with fastwrites and side band addressing off, I get marginally better framerate from glxgears. I know that this is not a great test but, looking at ut2003-demo, the video looks a bit smoother. Framerate with AGPFW and AGPSBA= 3092 F/sec without= 3121 F/sec (> 1% improvement) -- Regards, Ernie 100% Microsoft and Intel free -- [EMAIL PROTECTED] mailing list
