# $Id: clonemaps.py 3454 2004-08-10 14:22:07Z sean $ # # Timing tests of mapfile parsing vs map cloning import os from shutil import copyfile import timeit from testing import mapscript from testing import TESTMAPFILE # =========================================================================== # Test 1A: New maps from mapfile # # reloading the mapfile each time print "Test 1A: reloading maps from mapfile" s = """\ m = mapscript.mapObj(TESTMAPFILE) """ t = timeit.Timer(stmt=s, setup='from __main__ import mapscript, TESTMAPFILE') print "%.2f usec/pass" % (1000000 * t.timeit(number=100)/100) # =========================================================================== # Test 1B: Cloning # # Cloning instead of reloading print "Test 1B: cloning maps instead of reloading" m = mapscript.mapObj(TESTMAPFILE) s = """\ c = m.clone() """ t = timeit.Timer(stmt=s, setup='from __main__ import m') print "%.2f usec/pass" % (1000000 * t.timeit(number=100)/100) # =========================================================================== # Test 2: Add 20 dups of the POLYGON layer to see how results scale timing_map = mapscript.mapObj(TESTMAPFILE) polygon_layer = timing_map.getLayerByName('POLYGON') # duplicate POLYGON layer 20 times for i in range(20): timing_map.insertLayer(polygon_layer) assert timing_map.numlayers == 24 TIMINGMAPFILE = os.path.join(os.getcwd(), 'timing.map') timing_map.save(TIMINGMAPFILE) copyfile('../../tests/fonts.txt', os.path.join(os.getcwd(), 'fonts.txt')) copyfile('../../tests/symbols.txt', os.path.join(os.getcwd(), 'symbols.txt')) # Test 2A: reloading mapfile print "Test 2A: reloading inflated mapfile" s = """\ m = mapscript.mapObj(TIMINGMAPFILE) """ t = timeit.Timer(stmt=s, setup='from __main__ import mapscript, TIMINGMAPFILE') print "%.2f usec/pass" % (1000000 * t.timeit(number=100)/100) print "Test 2B: cloning inflated mapfile" m = mapscript.mapObj(TIMINGMAPFILE) s = """\ c = m.clone() """ t = timeit.Timer(stmt=s, setup='from __main__ import m') print "%.2f usec/pass" % (1000000 * t.timeit(number=100)/100)