title: PHP MPM_PREFORK for +4000 users
body: <p>I have the next mpm_prefork settings:</p>
  
  <p><code>StartServers 1024
  MinSpareServers 128
  MaxSpareServers 1024
  MaxClients 2048
  ServerLimit 2048</code></p>
  
  <p>With this config I'm able to have around 1700 users before getting connection reset error for the rest of the users.</p>
  
  <p>The server has 32GB ram and six cores. Before getting connection reset, htop shows max 5gb of use.</p>
  
  <p>Any idea on what to do to achieve +4000 concurrent users?</p>