Which XSLT Processor does CF8 use?

Question

I'm writing some XSLTs and would like to use the fn:base-uri() that is accessible in Saxon-SA 9.1.0.7 or later editions.  I cannot find any documentation on which XSLT processor(s) CF8 uses.  Nor can I find anything on possibly upgrading it or using CF to access an external processor.  Can anyone point me in the right direction on how to do upgrade CF8's XSLT processor, use another one via CF or even another function that the fn:base-uri() can do.
What I'm trying to do with the function is to get the XML's file name so that I can parse it out and insert it into the transformed XML.
EXAMPLE XSLT:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="xs" version="2.0">
    <xsl:output method="xml"/>
    <xsl:variable name="filepath">
        <xsl:value-of select="base-uri()"/>
    </xsl:variable>
     <xsl:template match="/">
          <xsl:value-of select="$filepath"/>
     </xsl:template>
</xsl:stylesheet>

Answer 1

Probably most of the heavy consumption is PGA related.
http://docs.oracle.com/cd/B28359_01/server.111/b28274/memory.htm#i49320
Have a look at the AWR history views concerning memory consumption. ADDM, ASH, AWR etc should give you more insight. See also the awr/addm/ash/-rpt.sql scripts in $ORACLE_HOME/rdbms/admin on the database server. You (officially) would need Diagnostic en Tuning pack licenses though, so be warned (even for "touching" those views). Probably the heavy consumption of memory is or (wrong) storage related or inefficient code...