Memcached runs across all available web nodes with 64 MB of memory allocated to each infrastructure. This isolates a relatively small amount of system memory, pulling it away from PHP, cron, and other application-layer services for the exclusive use of Memcached.

Some customers on the Cloud Classic infrastructure also invested in dedicated Memcache capacity, where some infrastructure was set aside for the exclusive use of Memcached so that two or more nodes could allocate nearly all of their available memory to Memcache. This configuration was typically only available to top-tier accounts and for production environments.