62 lines
1.5 KiB
Python
62 lines
1.5 KiB
Python
#!/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 = libplot.make_colours()
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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()
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