buildroot

#!/usr/bin/env python

​

# Copyright (C) 2011 by Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

# Copyright (C) 2013 by Yann E. MORIN <yann.morin.1998@free.fr>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

​

# This script generates graphs of packages build time, from the timing

# data generated by Buildroot in the $(O)/build-time.log file.

#

# Example usage:

#

#   cat $(O)/build-time.log | ./support/scripts/graph-build-time --type=histogram --output=foobar.pdf

#

# Three graph types are available :

#

#   * histogram, which creates an histogram of the build time for each

#     package, decomposed by each step (extract, patch, configure,

#     etc.). The order in which the packages are shown is

#     configurable: by package name, by build order, or by duration

#     order. See the --order option.

#

#   * pie-packages, which creates a pie chart of the build time of

#     each package (without decomposition in steps). Packages that

#     contributed to less than 1% of the overall build time are all

#     grouped together in an "Other" entry.

#

#   * pie-steps, which creates a pie chart of the time spent globally

#     on each step (extract, patch, configure, etc...)

#

# The default is to generate an histogram ordered by package name.

#

# Requirements:

#

#   * matplotlib (python-matplotlib on Debian/Ubuntu systems)

#   * numpy (python-numpy on Debian/Ubuntu systems)

#   * argparse (by default in Python 2.7, requires python-argparse if

#     Python 2.6 is used)

​

import sys

​

try:

    import matplotlib as mpl

    import numpy

except ImportError:

    sys.stderr.write("You need python-matplotlib and python-numpy to generate build graphs\n")

    exit(1)

​

# Use the Agg backend (which produces a PNG output, see

# http://matplotlib.org/faq/usage_faq.html#what-is-a-backend),

# otherwise an incorrect backend is used on some host machines).