Benchmarks Against Other Processors
1-28
Getting Started With Blackfin Processors
I-CACHE: ON
D-CACHE: ON (write-back)
I-CACHE Size: 16KB
D-CACHE Size: 32KB
I-CACHE Setup: 4 Sub-banks/4 Ways, 32 Lines/Way
D-CACHE Setup: 2 Super-banks/4 Sub-banks/2 Ways, 64 Lines/Way
Another common representation of the Dhrystone benchmark is the
DMIPS (Dhrystone MIPS), obtained when the Dhrystone score is divided
by 1,757 (the number of Dhrystones per second obtained on the VAX
11/780, nominally a 1 MIPS machine).
The -O3 option includes function inlining which is considered “illegal”
with the Dhrystone benchmark. There are a specific set of rules to Dhrys-
tone, defined by the Embedded Benchmark Consortium (EEMBC), so
the -O3 results should be taken for informational purposes of what advan-
tage -O3 can give, not for published results of DMIPS.
Table 1-2
contains Dhrystone benchmark results.
Table 1-2. Dhrystone Benchmark Results
Compiler Flags
Size in
Bytes
Dhrystones per
Second
Dhrystone
MIPS
DMIPS/MHz
-Os -DNO_PROTOTYPES=1
13400
394011.0
224.25
0.3737
-O0 -DNO_PROTOTYPES=1
14748
336021.5
191.24
0.3187
-O1 -DNO_PROTOTYPES=1
13768
463821.9
263.98
0.4399
-O2 -DNO_PROTOTYPES=1
13872
523834.5
298.14
0.4969
-O3 -DNO_PROTOTYPES=1
13880
621890.6
353.95
0.5899
-O3 -fno-inline
-DNO_PROTOTYPES=1
13872 523834.5
298.14
0.4969
Содержание Blackfin
Страница 10: ...Contents x Getting Started With Blackfin Processors ...
Страница 18: ...Product Information xviii Getting Started With Blackfin Processors ...
Страница 66: ...Benchmarks Against Other Processors 1 48 Getting Started With Blackfin Processors ...
Страница 148: ...Available Support 3 24 Getting Started With Blackfin Processors ...
Страница 154: ...Index I 6 Getting Started With Blackfin Processors ...