Re: per-fb mmap for platinumfb and valkyriefb in 2.4 (and 2.2)
From: Michel D�nzer <hidden>
Date: 2000-09-15 08:57:20
Martin Costabel wrote:
In fact, I don't see any difference between the situation before and after the patch. For x11perf --scroll500, I get exactly as before 36.2/sec for 1024x768 at 8bit. This is with XFree68-4.0.1; used to be 13/sec with older X servers.
X 4.x has ShadowFB, which shadows the framebufer in RAM and avoids reads from VRAM. I think Michel (the other one ;) either uses X 3.3.x or no ShadowFB. Michel PS: My Rage128 Mobility gives me 578.0/sec :) -- Earthling Michel Dänzer (MrCooper) \ CS student and free software enthusiast Debian GNU/Linux (powerpc,i386) user \ member of XFree86 and The DRI Project ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/