Configuring Percona Server with XtraDB for Fast Restarts

InnoDB requires a long time to restart on servers with large amounts of
memory. It can take many hours to warm InnoDB up enough to serve queries
quickly. The database's "working set" of data is not in memory after a restart,
so queries must perform random disk I/O to read pages, and are thus too slow for
production use. Percona Server with XtraDB greatly lowers database warmup time
by quickly restoring the buffer pool to its state before shutdown. This enables
higher uptime, and removes the need for elaborate methods of warming up servers.
It reduces the cost of a server restart, permitting MySQL to scale to
much larger hardware and to be used more flexibly. Percona Server's fast restart
capabilities provide significant operational and cost advantages in scenarios
such as cloud computing, high availability, dynamic scaling, and restores from
backups.