I/O Performance: File sort

This project is implemented to fulfill my SW Eng course's Individual Project. The goal of the project is to map and model the effects on the CPU and I/O perfo rmance of a program under various situations. The system provides two C++ progra ms: one to create the input files and the other that will be modelled. The input files contain a variable number of lines, variable number of integer values per line, and modifiable min/max integer values to be pseudo-randomly generated. Th- ese files will be read by the other and each line sorted; using stable-sort. Th- ese lines are then written into a new file with -sorted appended to the original file's name.

Building system:

Included with the system is a Makefile

• make: compiles create_new_files.cpp and sort_integer_files.cpp to create executables for user to use: create_files and sort_file

• make run: compiles aforementioned .cpp files into executables and runs them using the default command-line arguments.

• make clean: clears the working directory of generated files

** This README expects that you are in the directory where files will be stored **

Creating new input files:

Input files can be created by calling the create_files executable generated using the Makefile with/without command line arguments

Usage:

./create_files file_name nbr_files nbr_lines nbr_values min_value max_value

Command-Line Arguments, if present, are position locked and all arguments prior to any desired to be omitted must be stated:

1. file_name - desired base name for any files created [may be omitted without affecting position-lock system] {default='file'}
2. nbr_files - desired number of files to be created {default=3}
3. nbr_lines - desired number of lines for the initial file created [each consecutive file receives an monotonically increasing multiple of the initial argument i.e: the second file will have 2nbr_lines created third file will have 3nbr_lines created] {default=100}
4. nbr_values - desired number of values per line for the initial file created [each consecutive file receives an monotonically increasing multiple of the initial argument i.e: the second file will have 2nbr_values per line created third file will have 3nbr_values per line created] {default=100}
5. min_value - desired minimum integer value to be generated {default=1}
6. max_value - desired maximum integer value to be generated {default=100}

Sorting Files:

Sorting files creates a new file with the integers on each line sorted from least to greatest. This file is stored under the original file's name with a '-sorted' tag added before the format suffix

Usage:

./sort_file file_name

Command-Line Arguments, if present, are position locked and all arguments prior to any desired to be omitted must be stated:

1. file_name - desired base name for any files created [may be omitted without affecting position-lock system] {default='file0'}