[ZPT] ZPT Speed Tutorial Wanted

Mon, 16 Sep 2002 11:01:11 -0500

> This is realy a much bigger difference than we've seen. We've seen page
> templates take 2-3x longer than DTML, not 40x. Are you sure you are
> comparing ZPT and DTML templates that do the same thing?

The benchmark I ran was with ab and is very non-scientific but both pages 
should do about the same amount of work to display their respective content.

> It would be helpful to create a benchmark that does the same thing in
> ZPT and DTML and that shows this speed difference. We do have a project
> under way at ZC to do another round of performance improvements. We have
> a menchmark we are using, but you might be able to provide a better one.

I'll do more thorough testing this weekend (sooner if I have time) and see if 
I can pinpoint exactly where the bottleneck lies. 400ms represents a LOT of 
work on a 1.7Ghz server so it shouldn't be too difficult to track down the 
offending code.

I included the two pages I was using for my quick, off-the-cuff testing for 
reference.

-Andy

My test ZPT was:
---- CUT ALONG THE DOTTED LINE ----
<html>

<head>
  <title tal:content="template/title">The title</title>
</head>

<body bgcolor="#000000" text="#cccccc" link="ff0000" vlink="ff4444">

<h3 class="mainpage">Welcome to Haunted Wisconsin! </h3>

</body>
</html>
---- CUT ALONG THE DOTTED LINE ----

and the DTML document was
---- CUT ALONG THE DOTTED LINE ----
<dtml-var title>
    <form method="post">
    <input type="hidden" name="id" value="00000001">
    <table cellpadding="2" cellspacing="1" border="0">
      <tr>
        <td colspan="2">What is a fair price to pay for a ticket to a haunted 
attraction?</td>
      </tr>

        <tr>
          <td width="10"><input type="radio" name="answer"
    value="0"></td>
          <td align="left">$7</td>
        </tr>

        <tr>
          <td width="10"><input type="radio" name="answer"
    value="1"></td>
          <td align="left">$8</td>
        </tr>

        <tr>
          <td width="10"><input type="radio" name="answer"
    value="2"></td>
          <td align="left">$9</td>
        </tr>

        <tr>
          <td width="10"><input type="radio" name="answer"
    value="3"></td>
          <td align="left">$10 or more</td>
        </tr>

        <tr>
          <td width="10"><input type="radio" name="answer"
    value="4"></td>
          <td align="left">It depends on the haunt.</td>
        </tr>

      <tr>
        <td colspan="2"><input type="submit" name="vote" value="Vote"></td>
      </tr>
    </table>

    </form>
---- CUT ALONG THE DOTTED LINE ----