mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 01:04:19 +08:00
44637a12f8
This is a major update to the cyblafb framebuffer driver. Most
of the stuff has been tested in the mm tree.
Main advantages:
============
- vxres > xres support
- ywrap and xpan support
- much faster for almost all modes (e.g. 1280x1024-16bpp
draws more than 41 full screens of text instead of about 25
full screens of text per second on authors Epia 5000)
- module init/exit code fixed
- bugs triggered by console rotation fixed
- lots of minor improvements
- startup modes suitable for high performance scrolling
in all directions
This diff also contains a lot of white space fixes.
No side effects are possible, only one single graphics core is affected.
Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
80 lines
3.8 KiB
Plaintext
80 lines
3.8 KiB
Plaintext
Speed
|
|
=====
|
|
|
|
CyBlaFB is much faster than tridentfb and vesafb. Compare the performance data
|
|
for mode 1280x1024-[8,16,32]@61 Hz.
|
|
|
|
Test 1: Cat a file with 2000 lines of 0 characters.
|
|
Test 2: Cat a file with 2000 lines of 80 characters.
|
|
Test 3: Cat a file with 2000 lines of 160 characters.
|
|
|
|
All values show system time use in seconds, kernel 2.6.12 was used for
|
|
the measurements. 2.6.13 is a bit slower, 2.6.14 hopefully will include a
|
|
patch that speeds up kernel bitblitting a lot ( > 20%).
|
|
|
|
+-----------+-----------------------------------------------------+
|
|
| | not accelerated |
|
|
| TRIDENTFB +-----------------+-----------------+-----------------+
|
|
| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
|
|
| | noypan | ypan | noypan | ypan | noypan | ypan |
|
|
+-----------+--------+--------+--------+--------+--------+--------+
|
|
| Test 1 | 4.31 | 4.33 | 6.05 | 12.81 | ---- | ---- |
|
|
| Test 2 | 67.94 | 5.44 | 123.16 | 14.79 | ---- | ---- |
|
|
| Test 3 | 131.36 | 6.55 | 240.12 | 16.76 | ---- | ---- |
|
|
+-----------+--------+--------+--------+--------+--------+--------+
|
|
| Comments | | | completely bro- |
|
|
| | | | ken, monitor |
|
|
| | | | switches off |
|
|
+-----------+-----------------+-----------------+-----------------+
|
|
|
|
|
|
+-----------+-----------------------------------------------------+
|
|
| | accelerated |
|
|
| TRIDENTFB +-----------------+-----------------+-----------------+
|
|
| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
|
|
| | noypan | ypan | noypan | ypan | noypan | ypan |
|
|
+-----------+--------+--------+--------+--------+--------+--------+
|
|
| Test 1 | ---- | ---- | 20.62 | 1.22 | ---- | ---- |
|
|
| Test 2 | ---- | ---- | 22.61 | 3.19 | ---- | ---- |
|
|
| Test 3 | ---- | ---- | 24.59 | 5.16 | ---- | ---- |
|
|
+-----------+--------+--------+--------+--------+--------+--------+
|
|
| Comments | broken, writing | broken, ok only | completely bro- |
|
|
| | to wrong places | if bgcolor is | ken, monitor |
|
|
| | on screen + bug | black, bug in | switches off |
|
|
| | in fillrect() | fillrect() | |
|
|
+-----------+-----------------+-----------------+-----------------+
|
|
|
|
|
|
+-----------+-----------------------------------------------------+
|
|
| | not accelerated |
|
|
| VESAFB +-----------------+-----------------+-----------------+
|
|
| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
|
|
| | noypan | ypan | noypan | ypan | noypan | ypan |
|
|
+-----------+--------+--------+--------+--------+--------+--------+
|
|
| Test 1 | 4.26 | 3.76 | 5.99 | 7.23 | ---- | ---- |
|
|
| Test 2 | 65.65 | 4.89 | 120.88 | 9.08 | ---- | ---- |
|
|
| Test 3 | 126.91 | 5.94 | 235.77 | 11.03 | ---- | ---- |
|
|
+-----------+--------+--------+--------+--------+--------+--------+
|
|
| Comments | vga=0x307 | vga=0x31a | vga=0x31b not |
|
|
| | fh=80kHz | fh=80kHz | supported by |
|
|
| | fv=75kHz | fv=75kHz | video BIOS and |
|
|
| | | | hardware |
|
|
+-----------+-----------------+-----------------+-----------------+
|
|
|
|
|
|
+-----------+-----------------------------------------------------+
|
|
| | accelerated |
|
|
| CYBLAFB +-----------------+-----------------+-----------------+
|
|
| | 8 bpp | 16 bpp | 32 bpp |
|
|
| | noypan | ypan | noypan | ypan | noypan | ypan |
|
|
+-----------+--------+--------+--------+--------+--------+--------+
|
|
| Test 1 | 8.02 | 0.23 | 19.04 | 0.61 | 57.12 | 2.74 |
|
|
| Test 2 | 8.38 | 0.55 | 19.39 | 0.92 | 57.54 | 3.13 |
|
|
| Test 3 | 8.73 | 0.86 | 19.74 | 1.24 | 57.95 | 3.51 |
|
|
+-----------+--------+--------+--------+--------+--------+--------+
|
|
| Comments | | | |
|
|
| | | | |
|
|
| | | | |
|
|
| | | | |
|
|
+-----------+-----------------+-----------------+-----------------+
|