Question

I built a php hashing system and I’m confused with the speed performance of script.
I made a benchmark of the script for different amount of requests (the speed is only for the script nothing else involved).

10 requests: 0.001 sec

100 requests: 0.011 sec

1000 requests: 0.073 sec

10000 requests: 0.667 sec

100000 requests: 6.776 sec

After 1 million the server returns blank screen

My confusion:

if 1000 users try to login at the same time will it take 0.00001 sec for each user’s password input to be hashed and checked against their original or 0.073sec for each user?

benM this is the script for benchmark:

function test() 
{
  global $result;
  ob_start();
  $x = microtime(true);

  while($i < 10000) 
  {
      print // here you add whatever you want to test;
      ++$i;
  }

  $temp = microtime(true) - $x;
  ob_end_clean();
  return $temp;
}
echo number_format(test(), 3);

Answer 1

The benchmarking script that you have used is not ideal, since it tests them in a single request. You don’t have to worry about this, since IRL, no user is going to be logging in 1,000 times in a single request!