-- simple float benchmark ---



gcc4.2.1
-mabi=aapcs-linux -ffast-math -mcpu=arm1136j-s -mtune=arm1136j-s -O3
16,     14.933008,      7.741756,
32,     14.813744,      8.384181,
64,     15.110067,      8.694619,
128,    15.140320,      8.914943,
256,    15.383270,      9.023117,
512,    15.186049,      9.011122,
1024,   15.313783,      9.098312,
2048,   15.198764,      9.123863,
4096,   15.049773,      9.116435,
8192,   15.042523,      9.040496,
16384,  13.767839,      8.720637,
32768,  13.638582,      8.676601,
65536,  13.537651,      8.652711,

gcc3.4.4
-mabi=aapcs-linux -ffast-math -mcpu=arm1136j-s -mtune=arm1136j-s -O3
16,     11.644634,      6.443260,
32,     11.387004,      6.678296,
64,     11.391205,      6.823297,
128,    11.425627,      6.906497,
256,    11.474613,      6.920877,
512,    11.461237,      6.967988,
1024,   11.497426,      6.945292,
2048,   11.437061,      7.004178,
4096,   11.508857,      6.953627,
8192,   11.325871,      6.926075,
16384,  10.567420,      6.732741,
32768,  10.482200,      6.695207,
65536,  10.485538,      6.693924,


gcc3.4.4
-mabi=aapcs-linux -mfpu=vfp -mfloat-abi=softfp -ffast-math -mcpu=arm1136j-s -mtune=arm1136j-s -O3

16,     35.463203,      46.811821,
32,     91.106583,      48.834839,
64,     101.137962,     50.832504,
128,    105.591942,     51.285336,
256,    106.863571,     51.886494,
512,    107.682907,     52.154556,
1024,   108.634781,     52.469364,
2048,   108.469238,     53.138008,
4096,   105.251945,     52.899765,
8192,   102.261131,     52.217560,
16384,  60.678284,      42.913631,
32768,  57.499565,      41.799500,
65536,  57.266228,      41.547661,

gcc 4.2.1
-mabi=aapcs-linux -mfpu=vfp -mfloat-abi=softfp -ffast-math -mcpu=arm1136j-s -mtune=arm1136j-s -O3

16,     123.808571,     68.840912,
32,     134.663010,     75.793777,
64,     139.243759,     81.315186,
128,    160.630875,     81.588379,
256,    166.071762,     84.110275,
512,    168.058945,     83.314697,
1024,   164.680878,     83.799026,
2048,   169.331482,     79.088135,
4096,   167.259445,     80.079590,
8192,   153.391693,     78.866806,
16384,  77.417122,      56.227489,
32768,  72.475601,      55.724892,
65536,  70.863876,      55.093391,