wp-cache 2.0.17 Very fast cache module. It’s composed of several modules, this plugin can configure and manage the whole system. Once enabled, go to “Options” and select “WP-Cache”. By Ricardo Galli Granada . Deactivate 不能用吗?
This excellent plugin by Gallir is a must for anybody with serious traffic to their site, even if you have great hardware on the server, a spike in traffic can bring Apache down very quickly. 寒~`` http://wordpress.org/support/topic/66171