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#!/usr/bin/env python3
# Small tool to compare code size between TinyGo runs (with the -size=short flag).
import sys
class Comparison:
def __init__(self, command, flash0, ram0, flash1, ram1):
self.command = command
self.flash0 = flash0
self.ram0 = ram0
self.flash1 = flash1
self.ram1 = ram1
@property
def ramdiff(self):
return self.ram1 - self.ram0
@property
def flashdiff(self):
return self.flash1 - self.flash0
def readSizes(path):
sizes = []
lines = open(path).readlines()
for i in range(len(lines)):
if not lines[i].strip().startswith('code '):
continue
# found a size header
code, data, bss, flash, ram = map(int, lines[i+1].replace("|", "").split())
command = lines[i-1].strip()
sizes.append({
'command': command,
'flash': flash,
'ram': ram
})
return sizes
def main():
path0 = sys.argv[1]
path1 = sys.argv[2]
sizes0 = readSizes(path0)
sizes1 = readSizes(path1)
comparisons = []
for i in range(len(sizes0)):
if i >= len(sizes1):
print('%s has more commands than %s' % (path0, path1))
print(' ', sizes0[i]['command'])
break
if sizes0[i]['command'] != sizes1[i]['command']:
print('not the same command!')
print(' ', sizes0[i]['command'])
print(' ', sizes1[i]['command'])
comparisons.append(Comparison(sizes0[i]['command'], sizes0[i]['flash'], sizes0[i]['ram'], sizes1[i]['flash'], sizes1[i]['ram']))
if len(sizes0) < len(sizes1):
print('%s has more commands than %s' % (path1, path0))
print(' ', sizes1[len(sizes0)]['command'])
comparisons.sort(key=lambda x: x.flashdiff)
totalFlash0 = 0
totalFlash1 = 0
totalRam0 = 0
totalRam1 = 0
totalDiff = 0
totalRamDiff = 0
totalProduct = 1
totalRamProduct = 1
print(' flash ram')
print(' before after diff before after diff')
for comparison in comparisons:
diffPct = comparison.flashdiff / comparison.flash0
diffRamPct = comparison.ramdiff / comparison.ram0
print('%7d %7d %6d %6.2f%% %7d %7d %6d %6.2f%% %s' % (comparison.flash0, comparison.flash1, comparison.flashdiff, diffPct * 100, comparison.ram0, comparison.ram1, comparison.ramdiff, diffRamPct * 100, comparison.command))
totalFlash0 += comparison.flash0
totalFlash1 += comparison.flash1
totalDiff += comparison.flashdiff
totalProduct *= (1 + diffPct)
totalRam0 += comparison.ram0
totalRam1 += comparison.ram1
totalRamDiff += comparison.ramdiff
totalRamProduct *= (1 + diffRamPct)
geomean = totalProduct ** (1.0 / float(len(comparisons)))
geomeanRam = totalRamProduct ** (1.0 / float(len(comparisons)))
print('%7d %7d %6d %6.2f%% %7d %7d %6d %6.2f%%' % (totalFlash0, totalFlash1, totalDiff, geomean - 1, totalRam0, totalRam1, totalRamDiff, geomeanRam - 1))
if __name__ == '__main__':
main()
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