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1Speed
2=====
3
4CyBlaFB is much faster than tridentfb and vesafb. Compare the performance data
5for mode 1280x1024-[8,16,32]@61 Hz.
6
7Test 1: Cat a file with 2000 lines of 0 characters.
8Test 2: Cat a file with 2000 lines of 80 characters.
9Test 3: Cat a file with 2000 lines of 160 characters.
10
11All values show system time use in seconds, kernel 2.6.12 was used for
12the measurements. 2.6.13 is a bit slower, 2.6.14 hopefully will include a
13patch that speeds up kernel bitblitting a lot ( > 20%).
14
15+-----------+-----------------------------------------------------+
16| | not accelerated |
17| TRIDENTFB +-----------------+-----------------+-----------------+
18| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
19| | noypan | ypan | noypan | ypan | noypan | ypan |
20+-----------+--------+--------+--------+--------+--------+--------+
21| Test 1 | 4.31 | 4.33 | 6.05 | 12.81 | ---- | ---- |
22| Test 2 | 67.94 | 5.44 | 123.16 | 14.79 | ---- | ---- |
23| Test 3 | 131.36 | 6.55 | 240.12 | 16.76 | ---- | ---- |
24+-----------+--------+--------+--------+--------+--------+--------+
25| Comments | | | completely bro- |
26| | | | ken, monitor |
27| | | | switches off |
28+-----------+-----------------+-----------------+-----------------+
29
30
31+-----------+-----------------------------------------------------+
32| | accelerated |
33| TRIDENTFB +-----------------+-----------------+-----------------+
34| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
35| | noypan | ypan | noypan | ypan | noypan | ypan |
36+-----------+--------+--------+--------+--------+--------+--------+
37| Test 1 | ---- | ---- | 20.62 | 1.22 | ---- | ---- |
38| Test 2 | ---- | ---- | 22.61 | 3.19 | ---- | ---- |
39| Test 3 | ---- | ---- | 24.59 | 5.16 | ---- | ---- |
40+-----------+--------+--------+--------+--------+--------+--------+
41| Comments | broken, writing | broken, ok only | completely bro- |
42| | to wrong places | if bgcolor is | ken, monitor |
43| | on screen + bug | black, bug in | switches off |
44| | in fillrect() | fillrect() | |
45+-----------+-----------------+-----------------+-----------------+
46
47
48+-----------+-----------------------------------------------------+
49| | not accelerated |
50| VESAFB +-----------------+-----------------+-----------------+
51| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
52| | noypan | ypan | noypan | ypan | noypan | ypan |
53+-----------+--------+--------+--------+--------+--------+--------+
54| Test 1 | 4.26 | 3.76 | 5.99 | 7.23 | ---- | ---- |
55| Test 2 | 65.65 | 4.89 | 120.88 | 9.08 | ---- | ---- |
56| Test 3 | 126.91 | 5.94 | 235.77 | 11.03 | ---- | ---- |
57+-----------+--------+--------+--------+--------+--------+--------+
58| Comments | vga=0x307 | vga=0x31a | vga=0x31b not |
59| | fh=80kHz | fh=80kHz | supported by |
60| | fv=75kHz | fv=75kHz | video BIOS and |
61| | | | hardware |
62+-----------+-----------------+-----------------+-----------------+
63
64
65+-----------+-----------------------------------------------------+
66| | accelerated |
67| CYBLAFB +-----------------+-----------------+-----------------+
68| | 8 bpp | 16 bpp | 32 bpp |
69| | noypan | ypan | noypan | ypan | noypan | ypan |
70+-----------+--------+--------+--------+--------+--------+--------+
71| Test 1 | 8.02 | 0.23 | 19.04 | 0.61 | 57.12 | 2.74 |
72| Test 2 | 8.38 | 0.55 | 19.39 | 0.92 | 57.54 | 3.13 |
73| Test 3 | 8.73 | 0.86 | 19.74 | 1.24 | 57.95 | 3.51 |
74+-----------+--------+--------+--------+--------+--------+--------+
75| Comments | | | |
76| | | | |
77| | | | |
78| | | | |
79+-----------+-----------------+-----------------+-----------------+