e4da35486b
This tool can be very useful to compare binary sizes as output by `-size=short`. This is a tool I wrote a while ago. It's not perfect (we should probably use a geomean) but it works well enough to get a good idea on the binary size impact of a change.
83 строки
2,6 КиБ
Python
Исполняемый файл
83 строки
2,6 КиБ
Python
Исполняемый файл
#!/usr/bin/env python3
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# Small tool to compare code size between TinyGo runs (with the -size=short flag).
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import sys
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class Comparison:
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def __init__(self, command, code0, data0, bss0, code1, data1, bss1):
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self.command = command
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self.code0 = code0
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self.data0 = data0
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self.bss0 = bss0
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self.code1 = code1
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self.data1 = data1
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self.bss1 = bss1
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@property
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def flash0(self):
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return self.code0 + self.data0
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@property
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def flash1(self):
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return self.code1 + self.data1
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@property
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def codediff(self):
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return self.code1 - self.code0
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@property
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def flashdiff(self):
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return self.flash1 - self.flash0
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def readSizes(path):
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sizes = []
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lines = open(path).readlines()
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for i in range(len(lines)):
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if not lines[i].strip().startswith('code '):
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continue
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# found a size header
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code, data, bss = map(int, lines[i+1].split()[:3])
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command = lines[i-1].strip()
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sizes.append({
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'command': command,
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'code': code,
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'data': data,
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'bss': bss,
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})
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return sizes
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def main():
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path0 = sys.argv[1]
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path1 = sys.argv[2]
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sizes0 = readSizes(path0)
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sizes1 = readSizes(path1)
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comparisons = []
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for i in range(len(sizes0)):
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if i >= len(sizes1):
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print('%s has more commands than %s' % (path0, path1))
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print(' ', sizes0[i]['command'])
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break
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if sizes0[i]['command'] != sizes1[i]['command']:
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print('not the same command!')
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print(' ', sizes0[i]['command'])
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print(' ', sizes1[i]['command'])
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comparisons.append(Comparison(sizes0[i]['command'], sizes0[i]['code'], sizes0[i]['data'], sizes0[i]['bss'], sizes1[i]['code'], sizes1[i]['data'], sizes1[i]['bss']))
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if len(sizes0) < len(sizes1):
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print('%s has more commands than %s' % (path1, path0))
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print(' ', sizes1[len(sizes0)]['command'])
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comparisons.sort(key=lambda x: x.flashdiff)
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totalCode0 = 0
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totalCode1 = 0
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totalDiff = 0
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print(' before after diff')
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for comparison in comparisons:
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print('%7d %7d %6d %6.2f%% %s' % (comparison.flash0, comparison.flash1, comparison.flashdiff, comparison.flashdiff / comparison.flash0 * 100, comparison.command))
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totalCode0 += comparison.flash0
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totalCode1 += comparison.flash1
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totalDiff += comparison.flashdiff
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print('%7d %7d %6d %6.2f%% sum' % (totalCode0, totalCode1, totalDiff, totalDiff / totalCode0 * 100))
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if __name__ == '__main__':
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main()
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