There are a couple easy ways to check if memcache is actively being used on your site.
- Enable the
memcache_adminmodule 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.
- Log in to your NewRelic account . In the APM overview section if memcache is being used you will see
Memcachedgraph as shown below :
- 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.