publication-sitemap.xmap wastes a lot of time when rendering the Reader's View (Live).

["Michael P. Jung" <su...@gmail.com>]

Hi everybody,

I bought a nice book about Cocoon a few weeks ago. After browsing the
web for a decent CMS I stumbled over Lenya which seamed to be the
perfect choice as I could combine my newly obtained knowledge about
Cocoon with a quite powerful CMS.

However, the quality and performance of the default publication was a
bit frustrating and I started to dig into the depths of Lenya. After a
few hours I came up with some new XSL files which produces HTML code
that is just good enough for my CSS-addicted brain and found a way to
speedup Lenya by the factor 2 (two!) with only four lines added in the
publication-sitemap.xmap:

--snip--

Index: src/webapp/lenya/pubs/default/publication-sitemap.xmap
===================================================================
--- src/webapp/lenya/pubs/default/publication-sitemap.xmap      (revision 46019)
+++ src/webapp/lenya/pubs/default/publication-sitemap.xmap      (working copy)
@@ -15,7 +15,7 @@
   limitations under the License.
 -->
 
-<!-- $Id: publication-sitemap.xmap,v 1.77 2004/09/01 23:26:48 michi Exp $ -->
+<!-- $Id$ -->
 
 <map:sitemap xmlns:map="http://apache.org/cocoon/sitemap/1.0">
   
@@ -157,11 +157,15 @@
 
           <map:select type="browser">
             <map:when test="mozilla5DISABLED">
-              <map:transform
src="cocoon://lenya-page/{page-envelope:publication-id}/{../1}.xml?doctype={page-envelope:document-type}&amp;uiml=xul"/>
+              <map:match pattern="authoring/**.html">
+                <map:transform
src="cocoon://lenya-page/{page-envelope:publication-id}/{../../1}.xml?doctype={page-envelope:document-type}&amp;uiml=xul"/>
+              </map:match>
               <map:serialize type="xml"
mime-type="application/vnd.mozilla.xul+xml"/>
             </map:when>
             <map:otherwise>
-              <map:transform
src="cocoon://lenya-page/{page-envelope:publication-id}/{../1}.xml?doctype={page-envelope:document-type}"/>
+              <map:match pattern="authoring/**.html">
+                <map:transform
src="cocoon://lenya-page/{page-envelope:publication-id}/{../../1}.xml?doctype={page-envelope:document-type}"/>
+              </map:match>
               <map:transform src="../../xslt/util/strip_namespaces.xsl"/>
              <map:serialize type="html"/>
             </map:otherwise>

--snip--

I did a little benchmark of the live site using the Apache
benchmarking tool and came up with those rendering times:

Default Publication:
- unmodified : ~200ms / request
- patched : ~90ms /request

My System: P4 2,8GHz, 1 GB RAM, Debian GNU/Linux Sarge (with pinned
SID), Lenya SVN (BRANCH_1_2_X) and Tomcat 5.0.27

This was probably the performance killer No1.


Greetings,
Michael

ps.
When I find some time I'd like to contribute the changes of the XSL
files as a new publication. I call it the "clean" publication as it
uses all those fancy CSS tricks and produces a very clean HTML output.
- Anything wrong with that name?

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