[Exist-open] calling XSLTServlet on Windows with absolute stylesheet path is extremely slow

[ron.vandenbranden <ron...@ka...>]

Hi,

I've been trying to get my head around passing correct paths to 
XSLTServlet within a controller.xql file. I've finally found out that 
the path should start with {$exist:root} and {$exist:controller}, e.g.:

     <dispatch xmlns="http://exist.sourceforge.net/NS/exist">
       <forward url="{$exist:controller}/xquery/test.xq"/>
       <view>
         <forward servlet="XSLTServlet">
           <set-attribute name="xslt.stylesheet" value="{$exist:root}{$exist:controller}/xslt/test.xsl"/>
         </forward>
       </view>
     </dispatch>

Yet, in the past I came to believe there was something wrong with this 
approach, since in my developing environment it takes very long to 
execute such a pipeline. At first, I thought the double start slash 
(which the concatenation of $exist:root and $exist:controller produces) 
was responsible, so I tried to find ways to make it execute faster. 
Apparently, using an appropriate relative path (by prefixing the path 
with an appropriate number of ../ steps) seemed to solve this 
performance bottleneck.

After some testing, however, I think this delay seems to be bound to 
following variables (using eXist-trunk, rev. 16647):
     -controller is executed from the filesystem (not from the database)
     -controller is executed on a Windows PC

For example, above pipeline (accessible via 
http://localhost:8080/exist/controller_test/test.htm in the attached 
sample app), which just executes a simple XQuery and styles its output 
via a simple XSLT stylesheet, can easily take a stunning 7-8 seconds 
when executed from a Windows filesystem!

However, when executed from a Linux filesystem, or from the db (on both 
Windows or Linux), the request completes within milliseconds, as expected.

Is there any way to get more insight into what's consuming this awful 
lot of time (some logging settings, perhaps)? Any other users with 
similar experiences on Windows?

Ron