Benchmark DirectFB

Benchmarks

The DirectFB example suites include benchmark ‘df_dok’. We have ran
this benchmark on the following platform:

Platform	CPU	Clock	I/F	System RAM	Graphics Card	Kernel Version
A	Renesas SH-4	240MHz	CPU	64MB	SMI SM501 software drawing	2.4.20 CELF
A	Renesas SH-4	240MHz	CPU	64MB	SMI SM501 enable 2D acceleration	2.4.20 CELF
B	Renesas SH-4	240MHz	PCI	64MB	Matrox Millenium	2.4.19
C	Intel Celeron	450MHz	PCI	128MB	Matrox Mystique	2.4.20
D	Intel Celeron	450MHz	PCI	128MB	Matrox Millenium	2.4.20
F	Intel Celeron	450MHz	AGP	128MB	Matrox G450	2.4.20
E	Intel Pentium4	2.4GHz	AGP	1GB	Matrox G450	2.4.20
G	Intel CE2110	1Ghz	CPU	100Mb	software drawing	2.6.16
G	Intel CE2110	1Ghz	CPU	100Mb	Intel GDL accelerated	2.6.16

Benchmarks	Platform
Benchmarks	A	A	B	C	D	E	F	G	G
Anti-aliased Text [KChars/sec]	29.22	29.41	20.40	24.83	23.96	607.39	750.00	84	45
Anti-aliased Text (blend) [KChars/sec]	7.52	7.47	6.12	16.52	16.66	613.00	752.85	25	19
Fill Rectangles [MPixel/sec]	14.07	221.49	63.63	116.37	53.25	892.88	849.22	34	105
Fill Rectangles (blend) [MPixel/sec]	1.64	1.67	1.20	3.18	3.26	236.38	225.84	3	6
Fill Triangles [MPixel/sec]	12.25	93.87	93.87	108.79	50.51	748.55	730.24	32	1
Fill Triangles (blend) [MPixel/sec]	1.63	1.61	1.17	3.13	3.17	223.32	218.24	4	0.026
Draw Rectangles [KRects/sec]	1.81	16.01	10.67	12.95	8.57	59.53	36.27	11	3.6
Draw Rectangles (blend) [KRects/sec]	0.52	0.57	0.43	0.83	0.84	25.40	17.09	2.142	0.194
Draw Lines [KLines/sec]	7.10	66.98	61.33	62.60	48.84	281.86	162.40	41	16
Draw Lines (blend) [KLines/sec]	2.33	2.43	1.94	3.69	3.70	127.29	80.04	10	7
Blit [MPixel/sec]	8.12	100.49	38.68	53.75	32.56	435.02	398.84	25	64
Blit colorkeyed [MPixel/sec]	1.63	102.16	39.19	58.69	32.54	445.20	421.97	28	36
Blit with format conversion [MPixel/sec]	4.04	4.13	3.59	18.11	17.79	203.38	193.26	13	38
Blit from 32bit (alphachannel blend) [MPixel/sec]	1.05	1.05	0.82	2.71	2.71	171.32	158.10	3	36
Blit from 8bit palette [MPixel/sec]	3.54	2.35	3.20	17.40	17.38	17.28	95.17	-	-
Blit from 8bit palette (alphachannel blend) [MPixel/sec]	1.02	0.90	0.81	2.67	2.71	3.55	5.53	-	-
Stretch Blit [MPixel/sec]	12.17	83.50	7.06	83.50	47.61	210.32	220.77	25	21
Stretch Blit colorkeyed [MPixel/sec]	7.46	7.43	4.20	46.17	46.30	211.97	221.64	26	20

After enabling 2D acceleration in A* environment, the graphics
benchmark score improves. It looks like even embedded processor like
SH-4 can be used when DirectFB can use hardware acceleration. So a
graphics library would be essential in a graphical system.

For G* (Intel CE2110) environment, just basic operations like opaque
rectangle and blits are really optimized, some operations are much
slower and we can notice rendering artifacts/bugs. So take care,
possible you’ll have to fallback to software rendering on such platform.
Cyan-colored cells are supposed to be accelerated.

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