Copyright © 2015 Bart Massey

This little software suite counts the number of zero and one bits in a collection of files. It consists of several parts:

• countzeros.c is the core fast bit-counter which reads standard input.

• run1.sh runs countzeros on each of its command-line arguments.

• There are three versions of the statistics processor that analyzes the per-file statistics for mean and standard deviation.

  • process.py is in Python 3. This is the default.

  • process.awk is in AWK. Unfortunately, for very large collections of large files the lack of arbitrary-precision integers makes AWK behave badly.

  • process.5c is in Nickle. This language is probably best because 256-bit default floating mantissa, but it is not widely used or known.

• run.sh orchestrates the test. Invoke it with one argument: the root of the directory tree you want to gather statistics on. Currently, it will not leave its target filesystem looking for files.

This program is licensed under the "MIT License". Please see the file COPYING in the source for license information.