GCC Compilation Timing Analysis

An set of scripts and programs to help the analysis of GCC compilation time This set of tools is intended for my Master Thesis qualification

How this works

Currently, we compute the compilation time for each file by replacing the gcc driver with a custom wrapper that compute both timestamps before and after the call to the real gcc. We are careful to also replace the xgcc and xg++ binaries generated by the bootstrap process. Our wrapper produces a file that we then parse by using the plotter.py script.

Dependencies:

We mainly have the following dependencies:

• Python3
  • Numpy
  • Matplotlib
• Bash
• GNU Compiler Collections
  • GCC

Usage:

Use the script gcc_builder.sh inside the scripts folder to generate the dataset. The instructions regarding how to use it is printed by calling the script without any paramenters. Here is an example of how to use it:

./gcc_builder.sh ~/gcc_svn/trunk/ /tmp/test_build /tmp/time_results-1.txt 8 --disable-checking --disable-bootstrap

The generated dataset can be parsed and the time graphic be plotted using the plotter.sh script. All instructions regarding how to use it is printed by calling it without any parameters. Here is one example of usage:

./plotter.py --input-file /tmp/time_results-1.txt --output-file /tmp/test.pdf --filter

License

Read the file LICENSE in this folder.