Useful statistics about server, CPU, load average, RAM, memory usage, OS, software, IP address, hostname, timezone, disk space, PHP, MySQL, cache, etc
A really simple plugin for displaying WordPress memory utilization, server's uptime and Cpu last minute load on the new WordPress admin toolbar.
Display and manage your website server.
The archives WordPress plugin. This plugin creates real posts archives and greatly reduces the DB load since old posts are called only when needed.