pal cflags benchmark 20150812

pal-benchmark.txt

PAL Benchmark
=============

Comparison between different CFLAGS

Date:   2015-08-12
Commit: d88cd210f7774ba4472a494b8bd919657db8d36c



Arch:   x86_64
CPU:    Intel(R) Core(TM) i7-2760QM
CFLAGS: "-O2 -ffast-math" vs.
        "-O3 -ffast-math -march=corei7-avx"

Speedup
-----------------------
 0.24 p_tan_f32
 0.36 p_exp_f32
 0.47 p_min_f32
 0.48 p_cosh_f32
 0.50 p_sinh_f32
 0.50 p_tanh_f32
 0.88 p_gauss3x3_f32
 0.97 p_rand
 0.97 p_asinh_f32
 0.99 p_cbrt_f32
 0.99 p_median3x3_f32
 0.99 p_laplace3x3_f32
 0.99 p_max_f32
 0.99 p_atanh_f32
 1.00 p_acosh_f32
 1.00 p_invcbrt_f32
 1.01 p_median_f32
 1.02 p_atan2_f32
 1.07 p_sobel3x3_f32
 1.10 p_box3x3_f32
 1.13 p_prewitt3x3_f32
 1.19 p_scharr3x3_f32
 1.32 p_sort_f32
 1.41 p_mode_f32
 1.82 p_popcount_u64
 1.93 p_pow_f32
 2.42 p_add_f32
 2.43 p_mul_f32
 2.66 p_asin_f32
 2.78 p_acos_f32
 2.95 p_sub_f32
 3.20 p_mac_f32
 3.90 p_abs_f32
 4.18 p_dot_f32
 4.37 p_absdiff_f32
 4.63 p_invsqrt_f32
 4.71 p_ln_f32
 4.71 p_popcount_u32
 4.72 p_log10_f32
 5.46 p_itof
 5.47 p_sqrt_f32
 5.57 p_sumsq_f32
 6.84 p_ftoi
 7.15 p_inv_f32
 7.25 p_mean_f32
 7.48 p_atan_f32
 7.65 p_sum_f32
 7.73 p_cos_f32
 8.07 p_sincos_f32
 8.28 p_sin_f32
13.00 p_div_f32
---------------------
 2.07 (Geometric mean)


Arch:   ARMV7
CPU:    Cortex-A9
CFLAGS: "-O2 -ffast-math" vs.
        "-O3 -ffast-math -mcpu=cortex-a9 -mfpu=neon"

Speedup
-------------------------
 0.29 p_tan_f32
 0.71 p_exp_f32
 0.76 p_sinh_f32
 0.76 p_cosh_f32
 0.80 p_tanh_f32
 0.94 p_laplace3x3_f32
 0.95 p_median3x3_f32
 0.99 p_gauss3x3_f32
 0.99 p_scharr3x3_f32
 0.99 p_div_f32
 1.00 p_cbrt_f32
 1.01 p_sobel3x3_f32
 1.01 p_prewitt3x3_f32
 1.01 p_box3x3_f32
 1.01 p_atan2_f32
 1.01 p_invcbrt_f32
 1.02 p_asinh_f32
 1.03 p_acosh_f32
 1.05 p_atanh_f32
 1.06 p_rand
 1.08 p_median_f32
 1.09 p_max_f32
 1.11 p_pow_f32
 1.13 p_ln_f32
 1.16 p_abs_f32
 1.22 p_log10_f32
 1.25 p_popcount_u64
 1.35 p_sort_f32
 1.36 p_mode_f32
 1.36 p_acos_f32
 1.44 p_asin_f32
 1.49 p_min_f32
 1.53 p_popcount_u32
 1.62 p_sub_f32
 1.62 p_add_f32
 1.66 p_absdiff_f32
 1.75 p_mul_f32
 1.81 p_mac_f32
 1.99 p_dot_f32
 2.16 p_itof
 2.32 p_ftoi
 2.66 p_mean_f32
 2.66 p_sumsq_f32
 2.66 p_sum_f32
 3.04 p_inv_f32
 3.29 p_sin_f32
 3.38 p_sqrt_f32
 3.42 p_sincos_f32
 3.52 p_cos_f32
 3.65 p_invsqrt_f32
 3.66 p_atan_f32
---------------------
 1.40 (Geometric mean)


Arch: Epiphany
CPU:  Epiphany-III

CFLAGS: "-O2 -ffast-math-mfp-mode=round-nearest -ffp-contract=fast" vs.
        "-O2 -ffast-math-mfp-mode=round-nearest -ffp-contract=fast -mno-soft-cmpsf"
Speedup
----------------------------
 0.94 p_max_f32
 1    p_abs_f32
 1    p_absdiff_f32
 1    p_acosh_f32
 1    p_add_f32
 1    p_asinh_f32
 1    p_atan2_f32
 1    p_atan_f32
 1    p_atanh_f32
 1    p_box3x3_f32
 1    p_cbrt_f32
 1    p_cos_f32
 1    p_div_f32
 1    p_dot_f32
 1    p_ftoi
 1    p_gauss3x3_f32
 1    p_inv_f32
 1    p_invcbrt_f32
 1    p_invsqrt_f32
 1    p_itof
 1    p_laplace3x3_f32
 1    p_ln_f32
 1    p_log10_f32
 1    p_mac_f32
 1    p_mean_f32
 1    p_mul_f32
 1    p_popcount_u32
 1    p_popcount_u64
 1    p_prewitt3x3_f32
 1    p_rand
 1    p_scharr3x3_f32
 1    p_sin_f32
 1    p_sincos_f32
 1    p_sobel3x3_f32
 1    p_sqrt_f32
 1    p_sub_f32
 1    p_sum_f32
 1    p_sumsq_f32
 1.08 p_tanh_f32
 1.09 p_cosh_f32
 1.09 p_sinh_f32
 1.13 p_exp_f32
 1.30 p_asin_f32
 1.31 p_acos_f32
 1.58 p_tan_f32
 1.96 p_sort_f32
 2.01 p_median_f32
 2.18 p_median3x3_f32
 3.89 p_min_f32
---------------------
 1.10 (Geometric mean)


Arch: Epiphany
CPU:  Epiphany-III

CFLAGS: "-O2 -ffast-math-mfp-mode=round-nearest -ffp-contract=fast" vs.
        "-O3 -ffast-math-mfp-mode=round-nearest -ffp-contract=fast -mno-soft-cmpsf"
Speedup
----------------------------
 0.29 p_tan_f32
 0.63 p_exp_f32
 0.68 p_tanh_f32
 0.69 p_cosh_f32
 0.69 p_sinh_f32
 0.94 p_max_f32
 0.97 p_scharr3x3_f32
 0.97 p_sobel3x3_f32
 0.99 p_prewitt3x3_f32
 1.00 p_cbrt_f32
 1.00 p_invcbrt_f32
 1.00 p_atan2_f32
 1.00 p_ln_f32
 1.00 p_atanh_f32
 1.00 p_popcount_u64
 1.00 p_rand
 1.00 p_ftoi
 1.00 p_div_f32
 1.00 p_invsqrt_f32
 1.00 p_sqrt_f32
 1.00 p_popcount_u32
 1.00 p_itof
 1.00 p_box3x3_f32
 1.00 p_laplace3x3_f32
 1.00 p_gauss3x3_f32
 1.00 p_log10_f32
 1.00 p_acosh_f32
 1.08 p_asinh_f32
 1.23 p_cos_f32
 1.24 p_sincos_f32
 1.26 p_sin_f32
 1.29 p_acos_f32
 1.30 p_asin_f32
 1.41 p_abs_f32
 1.42 p_inv_f32
 1.51 p_mac_f32
 1.55 p_mean_f32
 1.56 p_sumsq_f32
 1.56 p_sum_f32
 1.66 p_atan_f32
 1.77 p_dot_f32
 1.85 p_add_f32
 1.85 p_mul_f32
 1.85 p_sub_f32
 1.86 p_absdiff_f32
 1.93 p_sort_f32
 2.01 p_median_f32
 2.18 p_median3x3_f32
 2.79 p_min_f32
---------------------
 1.16 (Geometric mean)