A test case that shows the performance degradation

test.c (text/plain), 196 bytes, created by Dmitry Bilunov on 2011-10-07 12:42:13 UTC

#include <time.h>
#include <stdio.h>

int main() {
  time_t t = time(0);
  int i;
  struct tm result;
  for(i=0; i < 10000000; i++)
    localtime_r(&t, &result);
  puts(ctime(&t));
  return 0;
}