Our Drupal site is sslllooooowwwww, at best taking 3s for static-content pages, at worst 11s for shopping cart pages. Above is the profile for visiting the shopping cart. Profiling reveals that PDOStatement::execute is the #1 time consumer. Any advice why or what to do about it?
Not sure if indicator that my connection has problems, Drupal is inefficiently sending data, or if it's time to learn how to tweak MySql.