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ASP Performance
Part:
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2
Calculating Prime Numbers
The first area I want to test is integer arithmetic calculations. The following ASP page
calculates prime number starting from number 3, and repeats the test many times.
<script language="vbscript" runat="server">
' prime_numbers.asp
' Copyright (c) 1999 by Dr. Herong Yang
' This ASP page calculates prime numbers, and measures its performance.
'
dim primes(1000)
numberOfTests = 1
numberOfPrimes = 1000
t1 = now
for nTest = 1 to numberOfTests
' Getting prime numbers
nPrime = 0
i = 2
while nPrime < numberOfPrimes
i = i + 1
j = 2
isPrime = true
while j<i and isPrime
isPrime = i mod j > 0
j = j + 1
wend
if isPrime then
nPrime = nPrime + 1
primes(nPrime) = i
end if
wend
next
t2 = now
t = t2 - t1
' Displaying the results
response.write("<html><body>")
response.write("<b>Performace Information</b><br/>")
response.write("Number of tests = " & numberOfTests & "<br/>")
response.write("Time = " & _
Hour(t)&":"&Minute(t)&":"&Second(t) & "<br/>")
response.write("<b> " & numberOfPrimes & " prime numbers:</b><br/>")
for n = 1 to numberOfPrimes
response.write(primes(n) & ", ")
next
response.write("</body></html>")
</script
I run this page, and got the following result. It tells me the page is working correctly.
Performace Information
Number of tests = 1
Time = 0:0:25
First 1000 Prime numbers:
3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, ...
I repeated the tests by changes the controlling parameters.
The following table shows the results comparing with similar tests I did
with other technologies:
Number Number Debug Time
Cases of Tests of Primes Mode (Sec) Note
1. 1 1000 Yes 25 ASP with IIS 5.0
2. 1 1000 No 25 ASP with IIS 5.0
3. 1 1000 ? 0 JSP with Tomcat 4.1.18
4. 10 1000 ? 2 JSP with Tomcat 4.1.18
5. 100 1000 ? 22 JSP with Tomcat 4.1.18
6. 100 1000 ? 21 JVM HotSpot 1.3.1
Conclusion:
- It is a big supprise to me that the IIS server side debugging mode change
makes no difference in performance.
- It is also a big supprise to me that the JSP page performs 100 times better
than the ASP page.
(Continued on next part...)
Part:
1
2
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