From: Michel Dänzer <daenzerm@student.ethz.ch>
To: Martin Costabel <costabel@wanadoo.fr>
Cc: mlan@cpu.lu, linuxppc-dev@lists.linuxppc.org
Subject: Re: per-fb mmap for platinumfb and valkyriefb in 2.4 (and 2.2)
Date: Fri, 15 Sep 2000 10:57:20 +0200 [thread overview]
Message-ID: <39C1E470.ACE122F@student.ethz.ch> (raw)
In-Reply-To: 39C155BF.1A150162@wanadoo.fr
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/
next prev parent reply other threads:[~2000-09-15 8:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-09-13 20:36 per-fb mmap for platinumfb and valkyriefb in 2.4 Michel Lanners
2000-09-13 21:10 ` per-fb mmap for platinumfb and valkyriefb in 2.4 (and 2.2) Michel Lanners
2000-09-13 22:24 ` Martin Costabel
2000-09-14 5:46 ` Michel Lanners
2000-09-14 22:48 ` Martin Costabel
2000-09-14 23:07 ` Martin Costabel
2000-09-15 8:57 ` Michel Dänzer [this message]
2000-11-19 11:04 ` per-fb mmap for platinumfb and valkyriefb in 2.4 Michel Lanners
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