title: PHP memory usage - is 1.5MB a lot?
body: <p>I'm running a site on a VPS and is reaching 93% memory usage regularly. I used the memory_get_usage() function in PHP on one of the larger pages and it said it was using over 1,500,000 in memory. Is that a lot? Is there a common benchmark for a healthy site?</p>
  
  <p>My site isn't even all that complex, though it's hand-coded not using any framework.</p>
  
  <p>Of concern is that fact that I traced the big jump in memory usage to the line of code where it includes one file (125kb) that contains all my PHP functions (yes I should probably separate the functions into separate libraries and include them as required).</p>
  
  <p>Memory usage for that page jumps from 250k to 1.4MB right after including that file. Is this normal? None of those functions are actually being called yet, it's just a function library.</p>