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#!/usr/bin/python | |
from cStringIO import StringIO | |
import time, commands, os | |
from sys import argv | |
def method1(): | |
out_str = '' | |
for num in xrange(loop_count): | |
out_str += `num` | |
ps_stats() | |
return out_str | |
def method2(): | |
from UserString import MutableString | |
out_str = MutableString() | |
for num in xrange(loop_count): | |
out_str += `num` | |
ps_stats() | |
return out_str | |
def method3(): | |
from array import array | |
char_array = array('c') | |
for num in xrange(loop_count): | |
char_array.fromstring(`num`) | |
ps_stats() | |
return char_array.tostring() | |
def method4(): | |
str_list = [] | |
for num in xrange(loop_count): | |
str_list.append(`num`) | |
out_str = ''.join(str_list) | |
ps_stats() | |
return out_str | |
def method5(): | |
file_str = StringIO() | |
for num in xrange(loop_count): | |
file_str.write(`num`) | |
out_str = file_str.getvalue() | |
ps_stats() | |
return out_str | |
def method6(): | |
out_str = ''.join([`num` for num in xrange(loop_count)]) | |
ps_stats() | |
return out_str | |
def ps_stats(): | |
global process_size | |
ps = commands.getoutput('ps -up ' + `pid`) | |
process_size = ps.split()[15] | |
def call_method(num): | |
global process_size | |
start = time.time() | |
z = eval('method' + str(num))() | |
end = time.time() | |
print "method", num | |
print "time", float((end-start) * 1000), "ms" | |
print "output size ", len(z) / 1024, "kb" | |
print "process size", process_size, "kb" | |
loop_count = 20000 | |
pid = os.getpid() | |
if len(argv) == 2: | |
call_method(argv[1]) | |
else: | |
print "Usage: python stest.py <n>\n" \ | |
" where n is the method number to test" |
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