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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define ORC_ENABLE_UNSTABLE_API
#include <orc/orc.h>
#include <orc-test/orctest.h>
#include <orc-test/orcprofile.h>
#define ALIGN(ptr,n) ((void *)((orc_intptr)(ptr + n) & (~(orc_intptr)(n-1))))
/* Limit amount of memory to check. Some systems can do above 64MB */
#define MAX_SIZE_TO_CHECK 1024*1024*64+1024
int hot_src = TRUE;
int hot_dest = TRUE;
int flush_cache = FALSE;
int
touch (unsigned char *ptr, int n)
{
static unsigned int sum;
int i;
for(i=0;i<n;i++){
sum += ptr[i];
}
// Return it so compiler doesn't complain about it being only
// ever being written to but never read.
return sum;
}
int
main(int argc, char *argv[])
{
char *s, *d;
orc_uint8 *src, *dest;
OrcProfile prof;
OrcProfile prof_libc;
double ave, std;
double ave_libc, std_libc;
double null;
int i,j;
double cpufreq;
int unalign;
OrcProgram *p;
int level1, level2, level3;
int max;
/* const uint8_t zero = 0; */
orc_init ();
/* cpufreq = 2333e6; */
cpufreq = 1;
if (argc > 1) {
unalign = strtoul (argv[1], NULL, 0);
} else {
unalign = 0;
}
s = malloc(MAX_SIZE_TO_CHECK);
d = malloc(MAX_SIZE_TO_CHECK);
src = ORC_PTR_OFFSET(ALIGN(s,128),unalign);
dest = ALIGN(d,128);
orc_profile_init (&prof);
for(j=0;j<10;j++){
orc_profile_start(&prof);
orc_profile_stop(&prof);
}
orc_profile_get_ave_std (&prof, &null, &std);
{
OrcCompileResult result;
p = orc_program_new ();
orc_program_set_name (p, "orc_memcpy");
/* orc_program_set_name (p, "orc_memset"); */
orc_program_add_destination (p, 1, "d1");
orc_program_add_source (p, 1, "s1");
/* orc_program_add_parameter (p, 1, "p1"); */
orc_program_append (p, "copyb", ORC_VAR_D1, ORC_VAR_S1, ORC_VAR_D1);
result = orc_program_compile (p);
if (ORC_COMPILE_RESULT_IS_FATAL (result)) {
fprintf (stderr, "Failed to compile orc_memcpy\n");
return -1;
}
}
#ifndef M_LN2
#define M_LN2 0.69314718055994530942
#endif
orc_get_data_cache_sizes (&level1, &level2, &level3);
if (level3 > 0) {
max = (int) ((log(level3)/M_LN2 - 6.0) * 10 + 20);
} else if (level2 > 0) {
max = (int) ((log(level2)/M_LN2 - 6.0) * 10 + 20);
} else {
max = 140;
}
for(i=0;i<max;i+=2){
double x = i*0.1 + 6.0;
int size = (int) pow(2.0, x);
if (size > MAX_SIZE_TO_CHECK) {
printf ("Stopping test, exceeding maximum size to check (%d, could do above %d)\n",
MAX_SIZE_TO_CHECK, size);
break;
}
if (flush_cache) {
touch (src, (1<<18));
}
if (hot_src) {
touch (src, size);
}
if (hot_dest) {
touch (dest, size);
}
orc_profile_init (&prof);
for(j=0;j<10;j++){
OrcExecutor _ex, *ex = &_ex;
void (*func) (OrcExecutor *);
orc_profile_start(&prof);
/* orc_memcpy (dest, src, size); */
ex->program = p;
ex->n = size;
ex->arrays[ORC_VAR_D1] = dest;
ex->arrays[ORC_VAR_S1] = (void *)src;
func = p->code_exec;
func (ex);
orc_profile_stop(&prof);
if (flush_cache) {
touch (src, (1<<18));
}
if (hot_src) {
touch (src, size);
}
if (hot_dest) {
touch (dest, size);
}
}
orc_profile_init (&prof_libc);
for(j=0;j<10;j++){
orc_profile_start(&prof_libc);
memcpy (dest, src, size);
orc_profile_stop(&prof_libc);
if (flush_cache) {
touch (src, (1<<18));
}
if (hot_src) {
touch (src, size);
}
if (hot_dest) {
touch (dest, size);
}
}
orc_profile_get_ave_std (&prof, &ave, &std);
orc_profile_get_ave_std (&prof_libc, &ave_libc, &std_libc);
ave -= null;
ave_libc -= null;
/* printf("%d: %10.4g %10.4g %10.4g %10.4g (libc %10.4g)\n", i, ave, std, */
/* ave/(1<<i), cpufreq/(ave/(1<<i)), */
/* cpufreq/(ave_libc/(1<<i))); */
printf("%g %10.4g %10.4g\n", x,
cpufreq/(ave/size), cpufreq/(ave_libc/size));
/* printf("%g %10.4g %10.4g\n", x, */
/* 32*(ave/(size)), 32*(ave_libc/(size))); */
fflush (stdout);
}
orc_program_free (p);
free (s);
free (d);
return 0;
}
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