/* How fast can Linux select()?  In about 2μs on my netbook,
 * which is about 3000 instructions.
 */
#include <stdlib.h>

#include <sys/select.h>

int main(int argc, char **argv)
{
  fd_set inputs;
  FD_ZERO(&inputs);
  FD_SET(0, &inputs);
  struct timeval zerotime = {0, 0};
  for (int ii = 0; ii < 1000000; ii++) {
    select(1, &inputs, NULL, NULL, &zerotime);
    FD_SET(0, &inputs);
  }
  return 0;
}