I do a writing and reading file performance test, the
result is that python2.3 is more faster than
ironpython1.0 beta6.
test result of python2.3 :
write & read [00005] M time used:
w: average=[1.363979] std.deviation=[0.383529]
max=[1.930142] min=[0.961854]
r: average=[0.682326] std.deviation=[0.467239]
max=[1.382589] min=[0.275619]
test result of ironpython1.6 beta:
write & read [00005] M time used:
w: average=[2.488578] std.deviation=[0.223175]
max=[3.054382] min=[2.213188]
r: average=[1.515179] std.deviation=[0.074947]
max=[1.632347] min=[1.412018]
bellowing is the test script:
from cStringIO import StringIO
import time
import math
def test_write(m):
bclock = time.clock()
mf = StringIO()
for i in xrange( 1024*m ):
mf.write( "*" * 1023 + "\n" )
f=open("test.txt", "w")
f.write( mf.getvalue() )
f.close()
#mf.close()
return time.clock() - bclock
def test_read():
bclock = time.clock()
i = 0
f=open("test.txt", "r")
for x in f.readlines():
i = i + 1
f.close()
return time.clock() - bclock
def get_avg( arr ):
_sum = 0
for x in arr:
_sum = _sum + x
return _sum / len(arr)
def get_test( arr ):
_dev = 0
avg = get_avg( arr )
for x in arr:
_dev = _dev + (avg - x) * (avg - x)
_dev = math.sqrt( _dev / len( arr ) )
return avg, _dev, max(arr), min(arr)
if __name__ == "__main__":
m = 5
w_arr = []
r_arr = []
for i in range(10):
print ">>> pass ", i + 1
w_arr.append( test_write(m) )
r_arr.append( test_read ( ) )
w_avg, w_std_dev, w_max, w_min = get_test( w_arr )
r_avg, r_std_dev, r_max, r_min = get_test( r_arr )
print "write & read [%05d] M time used:" %( m )
print "w: average=[%f] std.deviation=[%f] max=[%f]
min=[%f]" % get_test( w_arr )
print "r: average=[%f] std.deviation=[%f] max=[%f]
min=[%f]" % get_test( r_arr )
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