ip2clue provides access to multiple databases (Maxmind, Software 77, Webhosting.info and ip2location) to retrieve country information associated with IP addresses. It has a daemon that supports lots of concurrent connections and a client binary. Some client examples are also provided in languages including PHP and C.
Noca is a shared library that prevents the page cache from filling with data that we know we only need once. It hooks read, lseek, and close. If some conditions are met, they trigger an fadvise call so that the memory is freed. An example of its use could be to limit the page cache of a "tar zxvf" operation to a specified size, no matter how big the archive is.
pwatch is a set of tools for analyzing what a process is doing. Only the "io" command is currently implemented. It presents I/O activity in a nice ncurses screen and allows you to sort by the read/write speed or the number of bytes read/written since the start of the program. It was written to easily detect which program is eating a lot of I/O bandwidth.
Re: postgres is a requirement?! > running configure on a mac: > > PRJ=pwatch, VER=0.0.1, REV=1, > EXPORT_PATH=/data/www/umbrella/kernel/us/pwatch > Search for PostgreSQL....