Major performance issue
-----------------------
Key: XALANC-556
URL: http://issues.apache.org/jira/browse/XALANC-556
Project: XalanC
Type: Bug
Components: XalanC
Versions: 1.9
Reporter: Yves Monier
I recently switched from xalan-c 1.4 (with xerces-c 2.1.0) to xalanc-c 1.9
(xerces-c 2.6.0) for compatibility reasons with some of our supported linux
platforms.
No more compilation/link issues now with version 1.9 but it appears that this
version is MUCH slower than 1.4, at least with the xml & xsl files I deal
with...
I did some tests with different sizes for my xml file, using Xalan.exe from the
command line:
92 kb xml: approx. 1.5s for xalan-c 1.9 (approx. 2s for version 1.4)
491kb: 10s (3s for v1.4)
937kb: 21s (4s)
1128kb: 33s (4s)
1505kb: 1m25s (4s)
...
...
14655kb: 1h27m (22s) !!!
The xsl uses two xsl:key for Muenchian grouping. Nothing especially tricky, at
least for other processors like xalan-c 1.4 and saxon...
I had a look to the xalan-c mailing list archive and open bugs but found
nothing on performance aspects...
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