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Viewing changes to scripts/plot-top.py

  • Committer: Will Newton
  • Date: 2013-06-25 14:07:04 UTC
  • Revision ID: will.newton@linaro.org-20130625140704-jp1ad8y2p8d416qk
Support multiple runs of each benchmark.

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scripts/plot-top.py
 
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#!/usr/bin/env python
 
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"""Plot the performance of different variants of the string routines
 
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for one size.
 
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"""
 
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import libplot
 
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import pylab
 
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def plot(records, bytes):
 
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    records = [x for x in records if x.bytes==bytes]
 
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    variants = libplot.unique(records, 'variant', prefer='this')
 
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    functions = libplot.unique(records, 'function')
 
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    X = pylab.arange(len(functions))
 
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    width = 1.0/(len(variants)+1)
 
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    colours = iter('bgrcmyk')
 
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    pylab.figure(1).set_size_inches((16, 12))
 
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    pylab.clf()
 
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    for i, variant in enumerate(variants):
 
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        heights = []
 
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        for function in functions:
 
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            matches = [x for x in records if x.variant==variant and x.function==function and x.src_alignment==8]
 
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            if matches:
 
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                vals = [match.bytes*match.loops/match.elapsed/(1024*1024) for
 
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                        match in matches]
 
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                mean = sum(vals)/len(vals)
 
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                heights.append(mean)
 
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            else:
 
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                heights.append(0)
 
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        pylab.bar(X+i*width, heights, width, color=colours.next(), label=variant)
 
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    axes = pylab.axes()
 
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    axes.set_xticklabels(functions)
 
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    axes.set_xticks(X + 0.5)
 
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    pylab.title('Performance of different variants for %d byte blocks' % bytes)
 
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    pylab.ylabel('Rate (MB/s)')
 
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    pylab.legend(loc='upper left', ncol=3)
 
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    pylab.grid()
 
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    pylab.savefig('top-%06d.png' % bytes, dpi=72)
 
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def main():
 
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    records = libplot.parse()
 
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    for bytes in libplot.unique(records, 'bytes'):
 
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        plot(records, bytes)
 
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    pylab.show()
 
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if __name__ == '__main__':
 
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    main()