91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
// Inspired by: http://stackoverflow.com/questions/3664272/is-stdvector-so-much-slower-than-plain-arrays/3664349#3664349
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#define NDEBUG
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include <sys/resource.h>
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#include <sys/time.h>
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#include "m-array.h"
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#include "m-list.h"
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#include "m-rbtree.h"
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#include "m-dict.h"
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#include "m-algo.h"
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#include "m-mempool.h"
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#include "m-string.h"
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unsigned long g_result;
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static unsigned long long
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cputime (void)
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{
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struct rusage rus;
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getrusage (0, &rus);
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return rus.ru_utime.tv_sec * 1000000ULL + rus.ru_utime.tv_usec;
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}
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struct Pixel
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{
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unsigned char r, g, b;
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};
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ARRAY_DEF(array_pixel, struct Pixel, (INIT(M_NOTHING_DEFAULT), INIT_SET(M_MEMCPY_DEFAULT) ))
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void UseMlib(void)
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{
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unsigned long long t1 = cputime();
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for(int i = 0; i < 1000; ++i)
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{
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int dimension = 999;
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array_pixel_t pixels;
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array_pixel_init(pixels);
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array_pixel_reserve(pixels, dimension * dimension);
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for(int i = 0; i < dimension * dimension; ++i)
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{
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const struct Pixel p = { 255, 0, 0};
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array_pixel_push_back (pixels, p);
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}
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array_pixel_clear(pixels);
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}
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unsigned long long t2 = cputime();
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printf ("M*Lib Array: %Lu us\n", (t2-t1)/1000);
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}
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void UseNative(void)
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{
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unsigned long long t1 = cputime();
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for(int i = 0; i < 1000; ++i)
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{
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int dimension = 999;
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struct Pixel * pixels = malloc(sizeof(struct Pixel) * dimension * dimension);
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for(int i = 0 ; i < dimension * dimension; ++i)
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{
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pixels[i].r = 255;
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pixels[i].g = 0;
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pixels[i].b = 0;
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}
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free(pixels);
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}
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unsigned long long t2 = cputime();
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printf ("Native Array: %Lu us\n", (t2-t1)/1000);
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}
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int main(void)
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{
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UseNative();
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UseMlib();
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return 0;
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}
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