From: Michel Lanners <mlan@cpu.lu>
To: linuxppc-dev@lists.linuxppc.org
Subject: per-fb mmap for platinumfb and valkyriefb in 2.4
Date: Wed, 13 Sep 2000 22:36:58 +0200 (CEST) [thread overview]
Message-ID: <200009132037.WAA00873@piglet.grunz.lu> (raw)
Hi all,
Below is the per-fb mmap implementation I already posted here for
controlfb, but this time for the other two powermacfb drivers:
valkyriefb and platinumfb.
Patch is against Paul's rsync tree at 2.4.0-test7, but since I don't
expect much change in this area it should apply equally well to anything
more recent ;-)
Since I don't have any of these hardware devices, it's untested. If you
do test, expect a 2-to-4-times performance boost on scrolling:
[mlan@piglet ~]$ x11perf -scroll500
I get around 35/sec on controlfb at 1152x870@32bpp with XF4.0; around
9/sec without the optimized caching in the mmap().
Have fun!
Michel
PS Will appear on sourceforge soon.....
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next reply other threads:[~2000-09-13 20:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-09-13 20:36 Michel Lanners [this message]
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
2000-11-19 11:04 ` per-fb mmap for platinumfb and valkyriefb in 2.4 Michel Lanners
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