Hi,
I am evaluationg using Webware instead of plain python CGI.
I therefore run some benchmark tests, and discovered that there is no
difference in time needed between the webware and the cgi script.
I am a little bit surprised, because I thought webware must be
theoretically faster, because of the cached database connection and the
interpreter startup overhead with cgi.
Do you have a explanantion for that? Are my benchmarks wrong, or is it
just the thruth that under this circumstances cgi is as fast as webware.
Python 2.2, Apache, Linux Redhat 9 (2.4.20), WebWare 0.81, Single
Processor P4, 500 MB RAM
Running the benchmak script, profile says for testwebware:
55254 function calls (55219 primitive calls) in 0.760 CPU seconds
and testcgi:
54505 function calls in 0.800 CPU seconds
Running testpsycopg says:
5356 function calls in 0.380 CPU seconds
benchmark script:
===========================================================================
#!/usr/bin/python
import urllib as u
import profile
import psycopg
import os
def testcgi():
for i in range(100):
u.urlopen("http://localhost/cgi-bin/perftestcgi.py";)
def testwebware():
for i in range(100):
u.urlopen("http://localhost/cgi-bin/WebKit.cgi/perftest.py";)
def testpsycopg():
for i in range(100):
c = psycopg.connect("dbname=timcos_0")
os.popen2("python")
c.close()
profile.run("testcgi()")
=====================================================================
The cgi script:
---------------
#!/usr/bin/python
import psycopg
print "content-type: text/html"
print
c = psycopg.connect("dbname=timcos_0")
cu = c.cursor()
cu.execute("select * from donework;")
r = cu.fetchall()
print("<html><body>%s</html></body>" % r)
c.close()
===================================================================
The webware servlet:
-------------------
#!/usr/bin/env python
from WebKit.Page import Page
import psycopg
class (Page):
def __init__(self, *args, **KWs):
print "INIT"
Page.__init__(self, *args, **KWs)
self.c = psycopg.connect("dbname=timcos_0")
def writeBody(self):
cu = self.c.cursor()
cu.execute("select * from donework;")
r = cu.fetchall()
self.writeln("%s" % r)
--
Greg
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