Useful for command line testing of different malloc implimentations, real time system responsiveness via pv, and/or help tuning system internet buffers (aka tcp

Useful for command line testing of different malloc implimentations, real time system responsiveness via pv, and/or help tuning system internet buffers (aka tcp/ip). An automatically resizable buffer for vi-pipe would be helpful for command line malloc implimentations test via dd & pv commands.