POE is a Perl framework for non-blocking network applications and cooperative multitasking. It has many freely available modules for common programming tasks (see CPAN), and it is widely used and supported by the Perl and POE communities.
mtop (MySQL top) monitors a MySQL database showing the queries which are taking the most amount of time to complete. Features include 'zooming' in on a process to show the complete query and 'explaining' the query optimizer information.
...As each log entry is matched and formatted against customizeable rules, only relevant data is parsed.
GILoT features, atm, two separate user interfaces, a console UI and an ncurses/charva TUI.
Mutant is a multi-threaded command line monitoring tool, written in Python, using the ncurses library. With it, you can watch the output from multiple commands in a single terminal. Each command has a specific interval and color.
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