c_cpp/lib/klib/test/kstring_bench.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <time.h>
   4 #include "kstring.h"
   5
   6 #define N 10000000
   7
   8 int main()
   9 {
  10         int i;
  11         clock_t t;
  12         kstring_t s, s2;
  13         srand48(11);
  14         s.l = s.m = 0; s.s = 0;
  15         t = clock();
  16         for (i = 0; i < N; ++i) {
  17                 int x = lrand48();
  18                 s.l = 0;
  19                 kputw(x, &s);
  20         }
  21         fprintf(stderr, "kputw: %lf\n", (double)(clock() - t) / CLOCKS_PER_SEC);
  22         srand48(11);
  23         t = clock();
  24         for (i = 0; i < N; ++i) {
  25                 int x = lrand48();
  26                 s.l = 0;
  27                 ksprintf(&s, "%d", x);
  28         }
  29         fprintf(stderr, "ksprintf: %lf\n", (double)(clock() - t) / CLOCKS_PER_SEC);
  30
  31         srand48(11);
  32         s2.l = s2.m = 0; s2.s = 0;
  33         t = clock();
  34         for (i = 0; i < N; ++i) {
  35                 int x = lrand48();
  36                 s2.l = s.l = 0;
  37                 kputw(x, &s2);
  38                 kputs(s2.s, &s);
  39         }
  40         fprintf(stderr, "kputw+kputs: %lf\n", (double)(clock() - t) / CLOCKS_PER_SEC);
  41         srand48(11);
  42         t = clock();
  43         for (i = 0; i < N; ++i) {
  44                 int x = lrand48();
  45                 s2.l = s.l = 0;
  46                 kputw(x, &s2);
  47                 ksprintf(&s, "%s", s2.s);
  48         }
  49         fprintf(stderr, "kputw+ksprintf: %lf\n", (double)(clock() - t) / CLOCKS_PER_SEC);
  50         return 0;
  51 }