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This script generates graphs of packages build time, from the timing
data generated by Buildroot in the $(O)/build-time.log file.
Example usage:
./support/scripts/graph-build-time \
--type=histogram --input=$(O)/build-time.log --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.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[yann.morin.1998@free.fr: adapt to the format of the step-hooks build-time.log,
add sort order by name, default to name-ordered histogram, use our colours
for pie-charts, add alternate color-scheme, add short-options, add
--input/-i]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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