Measuring Buffer 20070518

Measuring Buffer is an enhanced version of buffer. Measuring Buffer features display of throughput, network support, memory-mapped file I/O for huge buffers and multithreading.
Main features:
- display of I/O speed
- optional use of memory mapped I/O for huge buffers
- multithreaded instead of sharedmemory ipc
- multi volume support
- autoloader support
- networking support
- compatible command-line options
Enhancements:
- This release prints a summary at the end of transfers independently of the option -q, adds a minor fix for the options -d and -b for certain systems, and fixes a lockup on SIGINT which occurred when running without a status display.