How do I know memcache is working on my site

There are a couple easy ways to check if memcache is actively being used on your site.

1. Enable the memcache_admin module provided with the memcache module.

    Performance and     Memcache (memcache)                                   Module  Enabled   8.x-2.0
    Performance and     Memcache Admin (memcache_admin)                   	   Module  Enabled   8.x-2.0

   
   Once logged in to your site with an admin user account you should see the memcache statistics at the bottom of each page. 
    
2. Log in to your NewRelic account . In the APM overview section if memcache is being used you will see Memcached graph as shown below :
   
3. There are more ways to check if memcache is being used by your site. Should the above not fit your needs please file an Acquia Support ticket.