a function to compare a time taken to perform similar set of actions using maya.cmds and pymel.

mayaCmdsVsPymel.py

'''
a function to compare a time taken to perform similar 
set of actions using maya.cmds and pymel.

original code taken from:
http://www.macaronikazoo.com/?p=271
'''

import time
import maya.cmds as mc
from pymel.core import *

def testMayaCmdsPymel(numIterList):
    '''
    a function to compare a time taken to perform similar 
    set of actions using maya.cmds and pymel.
    
    numIterList - a list consisting of the number of iterations
                    which to run the comparison tests on
    '''
    def testCmds(numIter):
        MAX = numIter
        start = time.clock()
        objList = []
        
        print '-- maya.cmds --'
        for n in xrange( MAX ):
            obj = mc.polyCube()[0]
            objList.append(mc.rename(obj, 'cube1'))
            mc.ls()
        mc.delete(objList)
        timeCmds = time.clock()-start
        print 'time taken %0.3f' % (timeCmds)
        return timeCmds

    def testPymel(numIter):
        MAX = numIter
        start = time.clock()
        objList = []
        print '-- pymel --'
        for n in xrange( MAX ):
            # using pymel’s wrapping of the polyCube() command
        	obj = polyCube()[0]
        	# using pymel's wrapping of rename() command
        	objList.append(rename(obj.name(), 'cube1')) 
        	ls() # using pymel’s wrapping of the ls() command
        delete(objList) # using pymel’s wrapping of the delete() command
        timePymel = time.clock()-start
        print 'time taken %0.3f' % (timePymel)
        return timePymel
        
    timeDiffDict = {}
    mainStart = time.clock()
    for x in numIterList:
        print 'duplicating %i objects' % (x)
        timeCmds = testCmds(x)
        timePymel = testPymel(x)
        timeDiff = float(timePymel)/float(timeCmds)
        timeDiffDict[x] = [timeCmds, timePymel, timeDiff]
        print 'difference: %0.3f times\n' % (timeDiff)

    print 'Results of test series:'
    print 'num iterations\ttime cmds\ttime pymel\ttime difference'
    print '--------------\t---------\t----------\t---------------\t'
    for x in sorted(timeDiffDict.keys()):
        print '%04i objects\t\t%0.3f s\t\t%0.3f s\t\t%0.3f times' % \
                (x, timeDiffDict[x][0], timeDiffDict[x][1], timeDiffDict[x][2])
    print '\ntotal time taken:', time.clock()-mainStart

testMayaCmdsPymel([10, 50, 100, 200, 300, 400, 500, 1000])
# testMayaCmdsPymel([10, 15, 20])

'''
-- sample output --
testMayaCmdsPymel([10, 50, 100, 200, 300, 400, 500, 1000])

duplicating 10 objects
-- maya.cmds --
time taken 0.078
-- pymel --
time taken 0.847
difference: 10.830 times

duplicating 50 objects
-- maya.cmds --
time taken 0.286
-- pymel --
time taken 4.359
difference: 15.220 times

duplicating 100 objects
-- maya.cmds --
time taken 0.660
-- pymel --
time taken 8.843
difference: 13.402 times

duplicating 200 objects
-- maya.cmds --
time taken 1.232
-- pymel --
time taken 20.434
difference: 16.588 times

duplicating 300 objects
-- maya.cmds --
time taken 1.773
-- pymel --
time taken 33.780
difference: 19.049 times

duplicating 400 objects
-- maya.cmds --
time taken 2.513
-- pymel --
time taken 49.537
difference: 19.713 times

duplicating 500 objects
-- maya.cmds --
time taken 3.159
-- pymel --
time taken 64.779
difference: 20.506 times

duplicating 1000 objects
-- maya.cmds --
time taken 7.550
-- pymel --
time taken 185.286
difference: 24.540 times

Results of test series:
num iterations	time cmds	time pymel	time difference
--------------	---------	----------	---------------	
010 objects		0.078 s		0.847 s		10.830 times
050 objects		0.286 s		4.359 s		15.220 times
100 objects		0.660 s		8.843 s		13.402 times
200 objects		1.232 s		20.434 s    16.588 times
300 objects		1.773 s		33.780 s	19.049 times
400 objects		2.513 s		49.537 s	19.713 times
500 objects		3.159 s		64.779 s	20.506 times
1000 objects	7.550 s		185.286 s	24.540 times

total time taken: 385.181002134
'''