Thread (35 messages) 35 messages, 10 authors, 2003-03-28

Re: Re: FBdev updates.

From: Antonino Daplas <hidden>
Date: 2003-02-21 10:36:38
Also in: lkml

On Fri, 2003-02-21 at 17:09, Geert Uytterhoeven wrote:
On 21 Feb 2003, Antonino Daplas wrote:
quoted
Note: I cannot test with 12x22 fonts in 2.4 because some/most drivers do
not support it.
Which specific drivers are you talking about? All drivers for popular cards
support fontwidth 12 (Matrox, ATI, nVidia, 3Dfx, Permedia, VESA, ...).
You're absolutely correct, I'm wondering why I thought that :-)  Here's
a benchmark for 12x22, and it's 2x slower than 8x16, 2.4.x or 2.5.x. 
Still, the 2.5.x version is slower than 2.4.x.

Tony

no accel
scrollmode: yredraw
font: 12x22
visual: packed pixels

time cat /usr/src/linux/MAINTAINERS

linux 2.4.20

bpp8
----
real    0m4.984s
user    0m0.000s
sys     0m4.940s

bpp16
-----
real    0m9.188s
user    0m0.000s
sys     0m9.090s

bpp24
-----
real    0m14.574s
user    0m0.000s
sys     0m14.380s

bpp32
-----
real    0m18.578s
user    0m0.000s
sys     0m18.390s

linux-2.5.62

bpp8
----
real    0m5.247s
user    0m0.001s
sys     0m5.245s

bpp16
-----
real    0m9.640s
user    0m0.001s
sys     0m9.591s

bpp24
-----
real    0m15.943s
user    0m0.001s
sys     0m15.944s

bpp32
-----
real    0m19.653s
user    0m0.002s
sys     0m19.651s




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