freebsd-dev/contrib/cortex-strings/scripts/plot-top.py
Andrew Turner 09a53ad8f1 Import the Linaro Cortex Strings library into contrib.
Sponsored by:	The FreeBSD Foundation
2016-09-19 13:12:09 +00:00

62 lines
1.5 KiB
Python

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