Jovan Ivković
/
Benchmark_Math_OP
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main.cpp
00001 //******************************************************** 00002 //** Nucleo-144 Stm32F746 and Stm32F767 benchmark ****** 00003 //** DP, SP and Int Arithemtic ops. ****** 00004 //** modified from ddown post at Arduino for STM32 ****** 00005 //** github.com/ddrown/benchmark.c (Arduino IDE) ****** 00006 //** by ****** 00007 //** Jovan Ivković - 2016. ****** 00008 //** JovanEps (jovan.eps@gmail.com). ****** 00009 //******************************************************** 00010 #include "mbed.h" 00011 DigitalOut myled(LED1); 00012 Serial pc(USBTX, USBRX); 00013 Timer timer; 00014 00015 #include <stdlib.h> 00016 #include <stdio.h> 00017 #include <string.h> 00018 #include <math.h> 00019 /* the following is optional depending on the timing function used */ 00020 #include <time.h> 00021 00022 00023 #define REDO_COMPUTATIONS 10 00024 struct results { 00025 uint32_t doubletime; 00026 uint32_t floattime; 00027 uint32_t inttime; 00028 }; 00029 00030 #define MAX_LOOPS 512 00031 double MyDoubles[MAX_LOOPS]; 00032 double a_d = 12345.67, b_d = 54321.11; 00033 float MyFloats[MAX_LOOPS]; 00034 float a_f = 67890.12, b_f = 8756451.17; 00035 int Myints[MAX_LOOPS]; 00036 int a_i = 581674411, b_i = 18714; 00037 00038 //**************************************** 00039 uint32_t micros () 00040 { 00041 //**************************************** 00042 // uint32_t usec = timer.read_us(); 00043 //return usec; 00044 return timer.read_us(); 00045 } 00046 00047 //**************************************** 00048 void math_add (struct results *r) { 00049 //**************************************** 00050 uint32_t t, c, l; 00051 00052 t = micros (); 00053 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00054 { 00055 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00056 { 00057 MyDoubles [ l ] = double ( a_d + b_d * double ( l ) ); 00058 } 00059 } 00060 r->doubletime = micros () - t; 00061 00062 t = micros (); 00063 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00064 { 00065 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00066 { 00067 MyFloats [ l ] = float ( a_f + b_f * float ( l ) ); 00068 } 00069 } 00070 r->floattime = micros () - t; 00071 00072 t = micros (); 00073 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00074 { 00075 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00076 { 00077 Myints [ l ] = a_i + b_i * l; 00078 } 00079 } 00080 r->inttime = micros () - t; 00081 } 00082 00083 //**************************************** 00084 void math_sub (struct results *r) { 00085 //**************************************** 00086 uint32_t t, c, l; 00087 00088 t = micros (); 00089 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00090 { 00091 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00092 { 00093 MyDoubles [ l ] = double ( a_d - b_d * double ( l ) ); 00094 } 00095 } 00096 r->doubletime = micros () - t; 00097 00098 t = micros (); 00099 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00100 { 00101 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00102 { 00103 MyFloats [ l ] = float ( a_f - b_f * float ( l ) ); 00104 } 00105 } 00106 r->floattime = micros () - t; 00107 00108 t = micros (); 00109 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00110 { 00111 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00112 { 00113 Myints [ l ] = a_i - b_i * l; 00114 } 00115 } 00116 r->inttime = micros () - t; 00117 } 00118 00119 //**************************************** 00120 void math_mul (struct results *r) { 00121 //**************************************** 00122 uint32_t t, c, l; 00123 00124 t = micros (); 00125 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00126 { 00127 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00128 { 00129 MyDoubles [ l ] = double ( a_d * b_d * double ( l ) ); 00130 } 00131 } 00132 r->doubletime = micros () - t; 00133 00134 t = micros (); 00135 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00136 { 00137 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00138 { 00139 MyFloats [ l ] = float ( a_f * b_f * float ( l ) ); 00140 } 00141 } 00142 r->floattime = micros () - t; 00143 00144 t = micros (); 00145 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00146 { 00147 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00148 { 00149 Myints [ l ] = a_i * b_i * l; 00150 } 00151 } 00152 r->inttime = micros () - t; 00153 } 00154 00155 //**************************************** 00156 void math_div (struct results *r) { 00157 //**************************************** 00158 uint32_t t, c, l; 00159 00160 t = micros (); 00161 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00162 { 00163 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00164 { 00165 MyDoubles [ l ] = double ( a_d / b_d * double ( l ) ); 00166 } 00167 } 00168 r->doubletime = micros () - t; 00169 00170 t = micros (); 00171 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00172 { 00173 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00174 { 00175 MyFloats [ l ] = float ( a_f / b_f * float ( l ) ); 00176 } 00177 } 00178 r->floattime = micros () - t; 00179 00180 t = micros (); 00181 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ ) 00182 { 00183 for ( l = 0 ; l < MAX_LOOPS ; l ++ ) 00184 { 00185 Myints [ l ] = a_i / b_i * l; 00186 } 00187 } 00188 r->inttime = micros () - t; 00189 } 00190 00191 //**************************************** 00192 void bench_loop() { 00193 //**************************************** 00194 00195 struct results add_ops, sub_ops, mul_ops, div_ops; 00196 00197 math_add(&add_ops); 00198 math_sub(&sub_ops); 00199 math_mul(&mul_ops); 00200 math_div(&div_ops); 00201 00202 pc.printf("\n\n"); 00203 pc.printf("\n FUNCTION DOUBLE SINGLE INT"); 00204 00205 pc.printf("\n Time - ADD (us/512) :\t "); 00206 pc.printf( "%0.1f", ( float ) add_ops.doubletime / REDO_COMPUTATIONS ); 00207 pc.printf("\t\t"); 00208 pc.printf( "%0.1f", ( float ) add_ops.floattime / REDO_COMPUTATIONS ); 00209 pc.printf("\t\t"); 00210 pc.printf("%0.1f", ( float ) add_ops.inttime / REDO_COMPUTATIONS ); 00211 pc.printf("\n"); 00212 00213 pc.printf("\n Time - SUB (us/512) :\t "); 00214 pc.printf( "%0.1f", ( float ) sub_ops.doubletime / REDO_COMPUTATIONS ); 00215 pc.printf("\t\t"); 00216 pc.printf( "%0.1f", ( float ) sub_ops.floattime / REDO_COMPUTATIONS ); 00217 pc.printf("\t\t"); 00218 pc.printf( "%0.1f", ( float ) sub_ops.inttime / REDO_COMPUTATIONS ); 00219 pc.printf("\n"); 00220 00221 pc.printf("\n Time - MUL (us/512) :\t "); 00222 pc.printf( "%0.1f", ( float ) mul_ops.doubletime / REDO_COMPUTATIONS ); 00223 pc.printf("\t\t"); 00224 pc.printf( "%0.1f", ( float ) mul_ops.floattime / REDO_COMPUTATIONS ); 00225 pc.printf("\t\t"); 00226 pc.printf( "%0.1f", ( float ) mul_ops.inttime / REDO_COMPUTATIONS ); 00227 pc.printf("\n"); 00228 00229 pc.printf("\n Time - DIV (us/512) :\t "); 00230 pc.printf( "%0.1f", ( float ) div_ops.doubletime / REDO_COMPUTATIONS ); 00231 pc.printf("\t\t"); 00232 pc.printf( "%0.1f", ( float ) div_ops.floattime / REDO_COMPUTATIONS ); 00233 pc.printf("\t\t"); 00234 pc.printf( "%0.1f", ( float ) div_ops.inttime / REDO_COMPUTATIONS ); 00235 pc.printf("\n"); 00236 00237 wait(1); 00238 } 00239 00240 //********************************* 00241 //** MAIN block ** 00242 //********************************* 00243 int main() 00244 { 00245 pc.baud(57600); 00246 00247 pc.printf("\n My Benchamrk ..."); 00248 pc.printf("Beginningbenchmark at "); 00249 pc.printf("default 216 MHz ...\n"); 00250 pc.printf("\n\n"); 00251 00252 while(1) 00253 { 00254 myled=1; 00255 timer.start(); 00256 00257 bench_loop(); //Call of banch method 00258 00259 pc.printf(" kraj \n"); 00260 myled=0; 00261 timer.stop(); 00262 00263 } 00264 }
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