This can be used to find faster ways to perform tasks in RoboFont using python

roboFontPerformanceTests.py

import time
def timeit(method):
	def timed(*args, **kw):
		ts = time.time()
		result = method(*args, **kw)
		te = time.time()
		if 'log_time' in kw:
			name = kw.get('log_name', method.__name__.upper())
			kw['log_time'][name] = int((te - ts) * 1000)
		else:
			print('%r  %2.2f ms' %(method.__name__, (te - ts) * 1000))
		return result
	return timed


f = CurrentFont()

# -----------------------------------------------------------------------------
# 1. Check if glyph is in a font
@timeit
def testGlyphInFont(f):
	for i in range(1000):
		'a' in f

glyphSet = set(f.keys())
@timeit
def testGlyphInSet(glyphSet):
	for i in range(1000):
		'a' in glyphSet

testGlyphInFont(f)
testGlyphInSet(glyphSet)

# Result: Using a set is a lot faster than using Font for checking if a glyph exist
# -----------------------------------------------------------------------------
# 1. Check index of a glyph name in glyphOrder
@timeit
def testFontGlyphOrder(f):
    for i in range(100):
        f.glyphOrder.index('a')

glyphOrder = f.glyphOrder[:]
@timeit
def testListGlyphOrder(glyphOrder):
    for i in range(100):
        glyphOrder.index('a')
        
testFontGlyphOrder(f)
testListGlyphOrder(glyphOrder)

# Result: Caching glyphOrder inside a tuple is a lot faster for operations inside a loop compared to using Font.glyphOrder property
# -----------------------------------------------------------------------------